WO2017002375A1 - Vehicle name narrow-down device, vehicle name narrow-down method, and program - Google Patents

Vehicle name narrow-down device, vehicle name narrow-down method, and program Download PDF

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Publication number
WO2017002375A1
WO2017002375A1 PCT/JP2016/052071 JP2016052071W WO2017002375A1 WO 2017002375 A1 WO2017002375 A1 WO 2017002375A1 JP 2016052071 W JP2016052071 W JP 2016052071W WO 2017002375 A1 WO2017002375 A1 WO 2017002375A1
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WIPO (PCT)
Prior art keywords
vehicle
narrowing
name
image
user input
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PCT/JP2016/052071
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French (fr)
Japanese (ja)
Inventor
昭成 古川
富美 池田
辰典 山上
景介 平山
Original Assignee
日本電気株式会社
Ｎｅｃソリューションイノベータ株式会社
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Application filed by 日本電気株式会社, Ｎｅｃソリューションイノベータ株式会社 filed Critical 日本電気株式会社
Publication of WO2017002375A1 publication Critical patent/WO2017002375A1/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/015—Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles

Definitions

  • the present invention relates to a car name narrowing device, a car name narrowing method, and a program.
  • Patent Document 1 discloses a bridge passing vehicle monitoring system for measuring the weight of a vehicle passing through a bridge.
  • the bridge passing vehicle monitoring system includes a strain gauge, an inter-vehicle distance database, an axle passage timing specifying processing unit, an inter-axis ratio calculation processing unit, and an inter-axis distance specifying processing unit.
  • One strain meter is arranged for each measurement position of the vehicle weight on the bridge, and measures strain generated in the bridge when the axle passes through the measurement position.
  • the inter-vehicle distance database registers the inter-axis distance data of large vehicles having three or more axes selected in advance together with the vehicle type.
  • the axle passage timing identification processing unit detects the timing at which the axle passes from the strain waveform measured by the strain gauge.
  • the inter-shaft ratio calculation processing unit calculates the inter-axis ratio of the vehicle that has passed based on the axle passage timing detected by the axle passage timing specifying processing unit.
  • the inter-axis distance identification processing unit compares the inter-axis ratio data calculated by the inter-axis ratio calculation processing unit with the inter-axis ratio data calculated based on the inter-axis distance registered in the inter-axis distance database. Then, the distance between the axles of the large vehicle that has passed and the vehicle type are specified.
  • Patent Document 2 discloses a vehicle type discriminating apparatus that discriminates a vehicle type of a road traveling vehicle during the daytime.
  • the vehicle type identification device includes a camera and a processing unit.
  • the camera images the traveling vehicle.
  • the processing unit removes the road surface based on the image captured by the camera and detects the vehicle head position. Based on the vehicle width and the vehicle silhouette at the vehicle head position, the processing unit captures the captured traveling vehicle as a ⁇ large passenger car '', ⁇ Classified as "Large freight cars", "Small passenger cars” and "Small freight cars”.
  • the technology to narrow down the name of the car photographed with the camera is desired.
  • This technique is used, for example, by the police.
  • As an example of use there may be a case where the name of the target vehicle reflected in the security camera or the like is narrowed down during the investigation.
  • this technique is also used by ordinary people.
  • a person who finds an interesting car in the city may take a picture of the car using a mobile phone or the like, and search for the car name of the car taken.
  • the usage example of the said technique illustrated here is an example to the last.
  • Patent Document 1 The technique described in Patent Document 1 is not a technique for narrowing down the names of cars taken with a camera.
  • An object of the present invention is to provide a new technique for narrowing down the names of cars photographed with a camera.
  • Display control means for displaying an image showing a vehicle subject to a car name narrowing process;
  • User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrowing means to narrow down the car name,
  • a vehicle name narrowing-down device is provided.
  • Computer A display control step for displaying an image showing a vehicle subject to a car name narrowing process;
  • a user input receiving step for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target A narrowing process to narrow down the car name, A vehicle name narrowing-down method is executed.
  • Computer Display processing execution means for displaying an image showing the target vehicle of the car name narrowing process;
  • User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrow down means to narrow down the car name,
  • a program for functioning as a server is provided.
  • UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. It is a figure for demonstrating the effect of the vehicle name narrowing-down apparatus 10 of this embodiment. It is an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment. It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. It is a figure which shows typically an example of the characteristic part information for every direction of this embodiment. It is a flowchart which shows an example of the flow of the process by the vehicle name narrowing-down apparatus 10 of this embodiment.
  • Each unit included in the apparatus of the present embodiment is stored in a CPU (Central Processing Unit), a memory, a program loaded into the memory, a storage unit such as a hard disk storing the program (from the stage of shipping the apparatus in advance). It can also store programs downloaded from CDs (Compact Discs) and other servers and servers on the Internet), and any combination of hardware and software, centering on the network connection interface Realized.
  • CPU Central Processing Unit
  • CDs Compact Discs
  • FIG. 1 is a diagram conceptually illustrating an example of a hardware configuration of a device (vehicle name narrowing device) according to the present embodiment.
  • the apparatus of this embodiment includes, for example, a CPU 1A, a RAM (Random Access Memory) 2A, a ROM (Read Only Memory) 3A, a communication unit 8A, an auxiliary storage device 9A, and the like that are connected to each other via a bus 10A.
  • the apparatus of the present embodiment may further include a display control unit 4A, a display 5A, an operation reception unit 6A, an operation unit 7A, and the like.
  • the apparatus according to the present embodiment may include other elements such as a microphone and a speaker.
  • the CPU 1A controls the entire computer of the apparatus together with each element.
  • the ROM 3A includes an area for storing programs for operating the computer, various application programs, various setting data used when these programs operate.
  • the RAM 2A includes an area for temporarily storing data, such as a work area for operating a program.
  • the auxiliary storage device 9A is, for example, an HDD (Hard Disc Drive), and can store a large amount of data.
  • the display 5A is, for example, a display device (LED (Light Emitting Diode) display, liquid crystal display, organic EL (Electro Luminescence) display, etc.).
  • the display 5A may be a touch panel display integrated with a touch pad.
  • the display control unit 4A reads data stored in a VRAM (Video RAM), performs predetermined processing on the read data, and then sends the data to the display 5A to display various screens.
  • the operation reception unit 6A receives various operations via the operation unit 7A.
  • the operation unit 7A includes operation keys, operation buttons, switches, a jog dial, a touch panel display, a keyboard, and the like.
  • the communication unit 8A is wired and / or wirelessly connected to a network such as the Internet or a LAN (Local Area Network) and communicates with other electronic devices. Further, the communication unit 8A can directly communicate with another electronic device by wire and / or wireless to perform communication.
  • a network such as the Internet or a LAN (Local Area Network)
  • LAN Local Area Network
  • the vehicle name narrowing device of the present embodiment displays an image in which the target vehicle of the vehicle name narrowing process is shown, and each of a plurality of characteristic parts (eg, full length, vehicle height, wheelbase, etc.) of the target vehicle in the image.
  • Accepts user input specifying the length of The user input here is, for example, an input for designating the start point and end point of each feature portion on the image.
  • the vehicle name narrowing device of the present embodiment includes dictionary data indicating the ratio of the lengths of the plurality of characteristic portions of each of the plurality of vehicles, and the lengths of the plurality of characteristic portions of the target vehicle specified based on the user input. Based on the ratio, narrow down the name of the target vehicle. Specifically, the name of a vehicle whose ratio is similar to that of the target vehicle is specified as a candidate for the name of the target vehicle.
  • the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, and a narrowing unit 13.
  • the display control unit 11 displays an image showing the target vehicle for the vehicle name narrowing process. For example, an image may be displayed on a display, or an image may be projected at a predetermined position.
  • the image file is input to the vehicle name narrowing device 10 by any means.
  • the display control unit 11 displays a predetermined image using the input image file.
  • FIG. 3 schematically shows an example of a user interface screen (hereinafter, “UI screen”) displayed on the display by the vehicle name narrowing device 10.
  • the UI screen has a target vehicle display area 1, a result display area 2, and a user input reception area 3.
  • a storage device for example, the vehicle name narrowing device 10.
  • a list of image files stored in the storage device, the car name narrowing device 10 and an external storage device connected to be communicable at that time is displayed.
  • the display control unit 11 displays the selected image in the target vehicle display area 1. The other parts of the result display area 2 and the user input reception area 3 will be described later.
  • the user input receiving unit 12 receives a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image displayed by the display control unit 11.
  • the characteristic portion is a portion where the ratio varies for each vehicle name, such as the vehicle width, the total length, the headlight interval, the vehicle height, and the wheel base.
  • the user input for specifying the length of each feature portion may be, for example, an input for designating the start point and end point of each feature portion on the image, but may be other.
  • the user input for specifying three characteristic portions is received.
  • the “wheel base setting” button in the user input reception area 3 is selected using the pointer 4
  • the user input reception unit 12 enters a user input waiting state for specifying the length of the wheel base.
  • the user uses the pointer 4 to perform an input for designating the start point and end point of the wheel base on the image displayed in the target vehicle display area 1.
  • the user performs a predetermined input by placing the pointer 4 at the start point, and performs a predetermined input by placing the pointer 4 at the end point.
  • a user performs the same process also in vehicle height and full length.
  • the coordinates of the designated start point and end point (for example, coordinates in the image displayed in the target vehicle display area 1) are displayed. Yes.
  • the user input reception part 12 demonstrated the example which receives the user input which specifies the length of three characteristic parts, a wheelbase, vehicle height, and full length here, the number and kind of characteristic parts are in this example. It is not limited.
  • the narrowing-down unit 13 uses the dictionary data indicating the ratio of the lengths of the plurality of feature portions of each of the plurality of vehicles and the ratio of the lengths of the plurality of feature portions of the target vehicle specified based on the user input. Based on the above, the name of the target vehicle is narrowed down. For example, the narrowing-down unit 13 calculates the similarity between the ratio of the lengths of the plurality of characteristic portions of the target vehicle and the ratio of the lengths of the plurality of characteristic portions of each of the plurality of vehicles, and the similarity is high (similarity). The names of a predetermined number of vehicles are identified as candidates for the names of the target vehicles.
  • the number of candidates for narrowing down is a design matter, and may be, for example, 5, 10, 30, 50, or the like.
  • the user may be able to select the number of candidates to narrow down.
  • the narrowing-down unit 13 may specify a vehicle having a similarity level equal to or higher than a predetermined level, and may use the vehicle name as a candidate for the vehicle name of the target vehicle.
  • the vehicle name narrowing device 10 may notify the user to that effect. For example, the above information may be displayed in the result display area 2 of the UI screen shown in FIG.
  • the narrowing-down unit 13 is configured to be able to use feature information for each vehicle name and parameter information.
  • FIG. 4 schematically shows an example of the feature information for each vehicle name.
  • FIG. 5 schematically shows an example of parameter information.
  • the feature information and parameter information for each vehicle name may be stored in the vehicle name narrowing device 10 or may be stored in an external device configured to be communicable with the vehicle name narrowing device 10.
  • the feature information for each vehicle name is dictionary data in which the vehicle name is associated with the parameter value. As shown in the figure, body types may be further associated.
  • the car name is a unique name of each car.
  • Described in the parameter value item of FIG. 4 are parameter IDs corresponding to each of a plurality of feature portions.
  • the parameter ID is associated with the name of the feature part.
  • the length of each of the plurality of feature portions of each vehicle is described.
  • the length of each of the plurality of characteristic portions of each car may be a value published by the manufacturer of each car, or may be a value actually measured by an administrator of the vehicle name narrowing device 10.
  • the car name may be divided for each year and a year column may be added to the feature information for each car name.
  • the narrowing-down unit 13 can narrow down not only the name of the target vehicle but also the year.
  • each manufacturer name may be further associated with each vehicle name.
  • the narrowing-down unit 13 can specify the length of each feature part for each vehicle name based on the feature information and parameter information for each vehicle name.
  • the narrowing-down unit 13 determines the ratio of the lengths of a plurality of feature portions for each vehicle name based on “the length of each feature portion of each vehicle specified based on the feature information and parameter information for each vehicle name”. Is calculated. For example, the narrowing-down unit 13 creates a predetermined pair (for example, a predetermined pair of feature parts, any pair that can be created, etc.) with a plurality of feature parts for each vehicle name. The length ratio may be calculated by dividing the other. An example is shown below. For example, the narrowing-down unit 13 may calculate the ratio of the lengths of the plurality of feature portions ( ⁇ n , ⁇ n , ⁇ n ) based on the following Equation 1.
  • n is a serial number of a plurality of vehicle names.
  • W n is the length of the wheel base of the nth named car.
  • H n is a vehicle height of the n-th of the name of the car.
  • L n is the total length of the car of the nth name.
  • ⁇ n is the ratio of wheelbase to vehicle height.
  • ⁇ n is the ratio of the wheel base to the total length.
  • ⁇ n is the ratio of the vehicle height to the total length.
  • the narrowing-down unit 13 specifies the length of each of the plurality of characteristic portions of the target vehicle based on the user input received by the user input receiving unit 12.
  • the length specified here can be the length in the image of each of the plurality of characteristic portions of the target vehicle. That is, as in the example illustrated in FIG. 3, when the start point and the end point of each feature part are designated by user input, the narrowing unit 13 calculates the distance between the start point and the end point as the length of the feature part.
  • the narrowing-down unit 13 calculates the ratio of the lengths of the plurality of feature portions based on the calculated lengths of the plurality of feature portions of the target vehicle.
  • the narrowing-down unit 13 creates a pair (a pair similar to the process of calculating the ratio of the length for each vehicle name) with a plurality of characteristic parts, and divides the other from one to the other for each pair.
  • a ratio may be calculated. An example is shown below.
  • the narrowing-down unit 13 may calculate the ratio of the lengths of the plurality of characteristic portions ( ⁇ 0 , ⁇ 0 , ⁇ 0 ) based on Equation 2 below.
  • W 0 is the length of the wheel base of the target vehicle specified based on the user input.
  • H 0 is the vehicle height of the target vehicle specified based on the user input.
  • L 0 is the total length of the target vehicle specified based on the user input.
  • ⁇ 0 is the ratio of wheelbase to vehicle height.
  • ⁇ 0 is the ratio of the wheelbase to the total length.
  • ⁇ 0 is the ratio of the vehicle height to the total length.
  • the narrowing-down unit 13 calculates the similarity between the ratio of the lengths of the plurality of feature portions of each of the plurality of vehicles and the ratio of the lengths of the plurality of feature portions of the target vehicle specified based on the user input.
  • the method of calculating the similarity is a design matter.
  • the narrowing-down unit 13 may calculate the similarity (D 1 , D 2 ⁇ D n ) based on the following Expression 3.
  • D n indicates the degree of similarity between the target vehicle and the n-th named vehicle.
  • the similarity calculated based on the formula is more similar as the value is smaller.
  • the case where the plurality of characteristic portions are the wheel base, the vehicle height, and the total length is taken as an example, but the case where the plurality of characteristic portions are different from this combination (example: a part including other characteristic portions)
  • the ratio of lengths can be calculated in the same manner.
  • the similarity can be calculated.
  • the display control unit 11 displays an image showing the target vehicle for the vehicle name narrowing process (S10).
  • a storage device for example, car name narrowing
  • the display control unit 11 displays the selected image in the target vehicle display area 1 as shown in FIG.
  • the user input receiving unit 12 receives a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image displayed by the display control unit 11 (S11).
  • the user input reception unit 12 causes the user input to specify the length of the wheel base. It will be in a waiting state. In this state, for example, the user uses the pointer 4 to perform an input for designating the start point and end point of the wheel base on the image displayed in the target vehicle display area 1.
  • the user performs a predetermined input by placing the pointer 4 at the start point and performing a predetermined input by placing the pointer 4 at the end point. And a user performs the same process also in vehicle height and full length.
  • designated start point and end point coordinates for example, coordinates in an image displayed in the target vehicle display area 1.
  • the narrowing-down unit 13 starts a process of narrowing down the vehicle name of the target vehicle (S12). Since the details of the processing by the narrowing-down unit 13 are as described above, description thereof is omitted here.
  • the result of narrowing by the narrowing unit 13 is displayed in the result display area 2.
  • a predetermined number of vehicle names are listed as candidates for the vehicle name of the target vehicle from the one with a higher similarity (value is smaller).
  • the similarity is displayed in association with each candidate.
  • the vehicle name narrowing device 10 of the present embodiment narrows down the vehicle names of the target vehicles shown in the image based on the ratio of the lengths of the plurality of characteristic portions of the vehicle.
  • FIG. 11 is data indicating that the ratio of the lengths of the plurality of characteristic portions of each vehicle varies.
  • the figure shows data of 100 types of vehicles with different vehicle names extracted at random. There are three types of characteristic parts: wheelbase, vehicle height, and overall length.
  • the values vary well without concentrating on specific values. From this data, it can be seen that the name of the target vehicle in the image can be narrowed down based on the ratio of the lengths of the plurality of characteristic portions of the vehicle.
  • the vehicle name narrowing device 10 of the present embodiment aims to narrow down the candidate names of the target vehicles (candidates that can be considered as the target vehicle names) to a certain number, It is not intended to be accurate. For this reason, as shown in FIG. 11, even if there are several vehicle names having similarities, the object of the vehicle name narrowing device 10 of this embodiment can be sufficiently achieved.
  • the vehicle name narrowing-down device 10 of the present embodiment a new technology for narrowing down the vehicle name of a vehicle photographed with a camera is realized.
  • the vehicle name narrowing device 10 identifies the direction of the target vehicle shown in the image displayed by the display control unit 11 and accepts a user input that identifies the length of the characteristic portion according to the direction. Thus, it is different from the vehicle name narrowing-down device 10 of the first embodiment.
  • a characteristic portion used for narrowing down the vehicle name is determined in advance for each direction of the target vehicle in the image displayed by the display control unit 11.
  • the ratio of the characteristic part may deviate from the actual ratio.
  • the ratio between the vehicle height and the wheel base in the image is the same as the actual ratio.
  • the ratio between the vehicle height and the wheelbase in the image can deviate from the actual ratio. For this reason, unless an appropriate feature portion corresponding to the direction of the target vehicle in the image is used and the vehicle name is not narrowed down, the narrowing down accuracy is deteriorated.
  • the wheelbase portion is not captured in the image.
  • the user who sees the guidance will be confused.
  • the user input reception area 3 when there is an input field for specifying the length of the headlight interval in the user input reception area 3, how is the user displayed on the image displayed in the target vehicle display area 1? It is confusing because it is impossible to grasp whether the start point and end point of the headlight interval should be specified.
  • the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a specifying unit 14.
  • the configuration of the display control unit 11 is the same as that of the first embodiment.
  • the specifying unit 14 specifies the direction of the target vehicle in the image.
  • the orientation of the target vehicle in the image is, for example, straight front (front), straight side, straight front (back), lick (front side), lick (rear side), straight front (front)-from top, right side-top, straight front (back). )-From above, licking (front side)-From above, licking (rear side)-From above, etc. are conceivable.
  • the direction of the target vehicle in the image may be further subdivided using an angle from above, a slanted angle, or the like.
  • the specifying unit 14 may specify the direction of the target vehicle in the image based on the user input, or may analyze the image and specify the direction of the target vehicle in the image.
  • an input field for designating the direction of the target vehicle displayed in the target vehicle display area 1 may be provided.
  • the user input acceptance area 3 is provided with an input field for designating the direction of the target vehicle in the image using a pull-down menu.
  • the user input receiving unit 12 may receive a user input specifying the direction of the target vehicle in the image from the pull-down menu. Then, the specifying unit 14 may specify the direction specified by the user input as the direction of the target vehicle in the image.
  • the orientation of the target vehicle in the image is specified by image analysis.
  • the direction of the target vehicle is specified by the shape of the tire.
  • the shape of the tire in the image varies depending on the direction of the target vehicle in the image.
  • the shape of the tire in the image is a circle.
  • the shape of the tire in the image is a predetermined shape distorted from a circle.
  • the positional relationship of the tires Depending on the orientation of the target vehicle in the image, the positional relationship between the two tires in the image becomes characteristic.
  • the horizontal direction of the image is the x-axis direction
  • the vertical direction of the image is the y-axis direction.
  • the user input receiving unit 12 notifies the user of a plurality of feature portions according to the direction of the target vehicle in the image specified by the specifying unit 14, and specifies the length of each of the notified feature portions. Accept user input. That is, the user input receiving unit 12 adjusts the characteristic part that receives the user input according to the direction of the target vehicle in the image.
  • the user input receiving unit 12 may hold the feature portion information for each orientation as shown in FIG.
  • the characteristic part information for each direction shown in the figure associates the direction of the target vehicle (direction column) in the image with the characteristic part (parameter ID column) used for narrowing down the vehicle name in each direction.
  • the vehicle width (parameter ID: 001)
  • the headlight interval (parameter ID : 003) is used for narrowing down the vehicle name.
  • the user input reception unit 12 specifies a feature portion used for narrowing down the vehicle name based on the direction of the target vehicle in the image specified by the specification unit 14, the parameter information in FIG. 5 and the feature portion information for each direction in FIG. . Then, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input that specifies the length of the specified feature portion.
  • the input item below changes according to the value (orientation) designated in the orientation column, and corresponds to the designated value (orientation).
  • the user input receiving unit 12 displays a predetermined input item corresponding to the designated value (orientation), thereby notifying the user of a plurality of characteristic portions corresponding to the orientation of the target vehicle in the image.
  • the user input receiving unit 12 inputs the length of the characteristic part (eg, wheel base, vehicle height, total length, etc.) used for narrowing down the car name when the direction is “straight side” in the column below it. Items are displayed. Features that are not used for narrowing down in the direction can be hidden.
  • the characteristic part eg, wheel base, vehicle height, total length, etc.
  • the user input receiving unit 12 changes the input item in the lower column accordingly when the orientation is “straight front (front)”. It is possible to change to an input item of the length of a characteristic part (eg, vehicle width, headlight interval, etc.) used for narrowing down the vehicle name.
  • a characteristic part eg, vehicle width, headlight interval, etc.
  • the narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions according to the direction specified by the specifying unit 14.
  • the other structure of the narrowing-down part 13 is the same as that of 1st Embodiment.
  • the display control unit 11 displays an image in which the target vehicle for the vehicle name narrowing process is shown (S30). This process is the same as S10 described with reference to FIG.
  • the specifying unit 14 specifies the direction of the target vehicle in the image (S31). Since the details of the processing are as described above, description thereof is omitted here.
  • the user input receiving unit 12 selects feature parts used for narrowing down vehicle names based on the direction of the target vehicle in the image specified by the specifying unit 14, the parameter information in FIG. 5, and the feature part information for each direction in FIG. Specify (S32). Thereafter, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input specifying the length of each of the notified feature portions (S33).
  • the narrowing-down unit 13 narrows down the vehicle name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions according to the direction specified by the specifying unit 14 (S34). This process is the same as S12 described with reference to FIG.
  • the ratio of the lengths of the characteristic portions may deviate from the actual ratio.
  • the ratio between the vehicle height and the wheel base in the image is the same as the actual ratio.
  • the ratio between the vehicle height and the wheelbase in the image can deviate from the actual ratio. For this reason, unless an appropriate feature portion corresponding to the direction of the target vehicle in the image is used and the vehicle name is not narrowed down, the narrowing down accuracy is deteriorated.
  • the vehicle name narrowing device 10 of the present embodiment can narrow down the vehicle names based on the ratio of the lengths of the appropriate characteristic portions according to the direction of the target vehicle in the image. For this reason, the precision of narrowing becomes high.
  • the wheelbase portion is not captured in the image.
  • the user who sees the guidance will be confused.
  • the user input reception area 3 when there is an input field for specifying the length of the headlight interval in the user input reception area 3, how is the user displayed on the image displayed in the target vehicle display area 1? It is confusing because it is impossible to grasp whether the start point and end point of the headlight interval should be specified.
  • the vehicle name narrowing device 10 notifies the user of a plurality of feature portions (feature portions used for narrowing down in the direction) according to the direction of the subject vehicle in the image, and the plurality of features thus notified.
  • User input specifying the length of each portion can be accepted. For this reason, it is possible to avoid inconveniences such as displaying a guide for accepting a user input specifying the length of a feature portion not shown in the image.
  • the vehicle name narrowing device 10 of the present embodiment may include at least the vehicle height, the total length, and the wheel base as characteristic portions when the direction of the target vehicle in the image is “straight side”. In this case, as described in the first embodiment with reference to FIG. 11, sufficient narrowing accuracy can be realized.
  • the characteristic portion may include at least the vehicle width, the headlight interval, or the tread (distance between the centers of the left and right wheels) and the vehicle height.
  • the characteristic portions may be included as the characteristic portions.
  • the vehicle name narrowing device 10 specifies the body type of the target vehicle shown in the image displayed by the display control unit 11 and performs user input for specifying the length of the characteristic portion according to the body type. It differs from the vehicle name narrowing-down apparatus 10 of 1st and 2nd embodiment by the point received.
  • a characteristic part used for narrowing down the vehicle name is predetermined for each body type.
  • the vehicle name narrowing device 10 of this embodiment identifies the body type before narrowing down the vehicle name.
  • the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a specifying unit 14.
  • the configuration of the display control unit 11 is the same as in the first and second embodiments.
  • the identifying unit 14 identifies the body type of the target vehicle. Examples of the body type include a light vehicle, a sedan, a station wagon, and a minivan. Naturally, it is not limited to the illustration here.
  • the identifying unit 14 can identify the body type of the target vehicle based on the user input.
  • an input field for designating the body type of the target vehicle displayed in the target vehicle display area 1 may be provided.
  • the user input reception area 3 is provided with an input field for designating the body type of the target vehicle from the pull-down menu.
  • the user input receiving unit 12 may receive a user input specifying the body type of the target vehicle from the pull-down menu. Then, the specifying unit 14 may specify the body type specified by the user input as the body type of the target vehicle.
  • the user input receiving unit 12 notifies the user of a plurality of feature portions according to the body type specified by the specifying unit 14 and receives a user input specifying the length of each of the notified plurality of feature portions. . That is, the user input receiving unit 12 adjusts the characteristic portion that receives the user input according to the body type of the target vehicle.
  • the user input receiving unit 12 may hold feature part information for each body type as shown in FIG.
  • the characteristic part information for each body type shown in the figure associates the body type (body type field) of the target vehicle with the characteristic part (parameter ID field) used for narrowing down the vehicle name for each body type. .
  • the feature part used for narrowing down the vehicle name when the target vehicle is each body type can be found.
  • the user input receiving unit 12 specifies a feature part used for narrowing down the vehicle name based on the body type of the target vehicle specified by the specifying unit 14, the parameter information in FIG. 5 and the feature part information for each body type in FIG. . Then, the user input receiving unit 12 notifies the user of the identified feature portion, and receives a user input that specifies the length of the notified feature portion.
  • the input item below changes according to the value (body type) specified in the body type column, and corresponds to the specified value (body type).
  • the user input receiving unit 12 notifies the user of a plurality of characteristic portions corresponding to the body type specified by the specifying unit 14 by displaying predetermined input items.
  • the user input reception unit 12 displays an input item of the length of the characteristic part used for narrowing down the vehicle name when the body type is “minivan” in the lower column.
  • the user input receiving unit 12 changes the input item in the lower column accordingly when the body type is “sedan”. It can be changed to the input item of the length of the characteristic part used for narrowing down.
  • the narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions corresponding to the body type specified by the specifying unit 14.
  • the narrowing-down unit 13 can narrow down the dictionary data used for narrowing down the vehicle name to the data of the vehicle classified into the body type specified by the specifying unit 14. That is, the narrowing-down unit 13 uses only the vehicle name data associated with the body type specified by the specifying unit 14 in the feature information for each vehicle name shown in FIGS. Name can be narrowed down.
  • the display control unit 11 displays an image in which the target vehicle for the vehicle name narrowing process is shown (S40). This process is the same as S10 described with reference to FIG.
  • the specifying unit 14 specifies the body type of the target vehicle in the image (S41). Since the details of the processing are as described above, description thereof is omitted here.
  • the user input receiving unit 12 selects feature parts used for narrowing down vehicle names based on the body type of the target vehicle specified by the specifying unit 14, the parameter information in FIG. 5, and the feature part information for each body type in FIG. Specify (S42). Thereafter, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input specifying the length of each of the notified feature portions (S43).
  • the narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions corresponding to the body type specified by the specifying unit 14 (S44). This process is the same as S12 described with reference to FIG.
  • the vehicle name narrowing device 10 of this embodiment identifies the body type before narrowing down the vehicle name. Specifically, an image showing the target vehicle is displayed and a user input specifying the body type of the target vehicle is accepted.
  • the dictionary data used for narrowing down the car name can be narrowed down to car data classified into the body type.
  • the precision of narrowing down the car name is improved.
  • the vehicle name narrowing-down device 10 of the present embodiment displays the vehicle name narrowed down by the narrowing-down unit 13 and displays the vehicle image of that name side by side with the image of the target vehicle. Different from the vehicle name narrowing-down device 10 of the embodiment.
  • the user displays the image of the target vehicle and the image of the vehicle corresponding to the narrowed vehicle name side by side, and compares them so that the narrowed vehicles are displayed. It can be determined whether the vehicle corresponding to the name and the target vehicle have the same vehicle name.
  • the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a result output unit 15.
  • the vehicle name narrowing device 10 may further include a specifying unit 14.
  • the configurations of the display control unit 11, the user input receiving unit 12, the narrowing down unit 13, and the specifying unit 14 are the same as those in the first to third embodiments.
  • the result output unit 15 outputs the narrowed-down vehicle name that is the vehicle name narrowed down by the narrowing-down unit 13 and displays the image of the car corresponding to each narrowed-down car name along with the image of the target vehicle.
  • the result output unit 15 holds an image file for each of a plurality of vehicle names in advance. And the result output part 15 implement
  • the result output part 15 may display the image of the vehicle applicable to the selected narrowed-down vehicle name in the result display area 2.
  • FIG. the image of the target vehicle and the image of the vehicle corresponding to the narrowed-down vehicle name are displayed side by side. Note that these images may be displayed side by side on the left and right, or otherwise in a display form.
  • the result output unit 15 may display an image of a car corresponding to the narrowed down vehicle name in the same direction as the direction of the target vehicle in the image displayed by the display control unit 11. That is, the result output unit 15 may display an image in which the direction of the vehicle corresponding to the narrowed-down vehicle name is right side when the direction of the target vehicle in the image is right side. In this way, the user can more easily compare the two images.
  • the result output unit 15 may hold a stereoscopic image file that can rotate 360 ° as a vehicle image file corresponding to each of a plurality of vehicle names. And the result output part 15 may implement
  • the means for specifying the direction of the target vehicle in the image displayed by the display control unit 11 the same means as the specifying unit 14 can be employed.
  • the vehicle image corresponding to the vehicle name narrowed down by the narrowing-down unit 13 and the image of the target vehicle can be displayed side by side.
  • the vehicle image corresponding to the vehicle name narrowed down by the narrowing-down unit 13 and the image of the target vehicle can be displayed with the vehicle orientation aligned. it can.
  • the user compares the vehicle corresponding to each of the narrowed vehicle names and the target vehicle on the image, so that The name of the target vehicle can be further narrowed down or specified.
  • Example> 100 types of vehicle names were identified at random. Then, using the catalog information, feature information for each vehicle name (see FIG. 6) of the 100 types of vehicle names was created. As shown in FIG. 22, the characteristic portions are a wheel base, a total length, and a vehicle height.
  • the vehicle name narrowing-down process was performed predetermined times using the vehicle name narrowing-down apparatus 10 of 1st Embodiment. Each time a user input was made to identify the length of the feature.
  • the narrowing-down unit 13 narrows down the vehicle names using the formulas 1 to 3 described in the first embodiment.
  • FIGS. FIG. 23 to FIG. 25 each have a different vehicle name as a target vehicle.
  • the vehicle name narrowing device 10 may perform image processing such as emphasizing the outline (edge) or sharpening the image quality on the image showing the target vehicle. Then, the display control unit 11 may display the image after the image processing, and the user input reception unit 12 may receive a user input that specifies the length of the feature portion on the image. In this way, the image becomes clear and the input error by the user (eg, an input shift specifying the start point and the end point) can be reduced. As a result, the accuracy of narrowing down the vehicle name is improved.
  • image processing such as emphasizing the outline (edge) or sharpening the image quality on the image showing the target vehicle. Then, the display control unit 11 may display the image after the image processing, and the user input reception unit 12 may receive a user input that specifies the length of the feature portion on the image. In this way, the image becomes clear and the input error by the user (eg, an input shift specifying the start point and the end point) can be reduced. As a result, the accuracy of narrowing down the vehicle name
  • the vehicle name narrowing device 10 determines the center point of the tire, the center point of the head ride, the front end of the vehicle, the rear end of the vehicle, and the like by image analysis, and the display control unit 11 displays the determination result. May be displayed in a superimposed manner (for example, a predetermined mark is displayed at the position).
  • the user can use such auxiliary information to perform an input for specifying the length of the feature portion. Therefore, an input error by the user (eg, an input shift specifying the start point and the end point) can be reduced. Can be small. As a result, the accuracy of narrowing down the vehicle name is improved.
  • the vehicle name narrowing device 10 stores, as dictionary data, feature quantities of characteristic external portions (eg, emblems, tail lamps, grills, etc.) of each vehicle name as feature information for each vehicle name.
  • the vehicle name may be narrowed down by further combining image recognition processing using quantities.
  • the vehicle name narrowing device 10 may accept a user input that designates a display area of each predetermined part on the image displayed by the display control unit 11. And you may narrow down a vehicle name by collation using the image reflected in the area designated by user input, and the above-mentioned dictionary data.
  • the accuracy of narrowing down the vehicle name is improved by combining a plurality of processes.
  • the vehicle name narrowing device 10 may include means for specifying the manufacturer name of the target vehicle before narrowing down the vehicle name of the target vehicle. For example, after the display control unit 11 displays the image of the target vehicle, a user input specifying the manufacturer name of the target vehicle may be accepted, or the manufacturer name may be specified by image analysis of an emblem appearing in the image. And the characteristic part used for narrowing down a car name may be predetermined for every maker name. That is, the narrowing-down unit 13 can narrow down the vehicle name of the target vehicle based on the ratio of the lengths of the characteristic portions according to the specified manufacturer name. Moreover, the narrowing-down part 13 can narrow down the vehicle name of an object vehicle only using the data of the specified manufacturer's car as dictionary data.
  • the dictionary data used for narrowing down the car name can be narrowed down to the car data of that manufacturer.
  • the precision of narrowing down the car name is improved.
  • Display control means for displaying an image showing a vehicle subject to a car name narrowing process;
  • User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrowing means to narrow down the car name, Car name narrowing device having.
  • the vehicle name narrowing-down device described in 1 Further comprising specifying means for specifying the direction of the target vehicle in the image;
  • the characteristic part used for narrowing down the car name for each direction is predetermined,
  • the user input receiving means notifies the user of the plurality of characteristic portions according to the orientation specified by the specifying means, and receives a user name specifying the length of each of the notified characteristic portions.
  • Device. 3 In the vehicle name narrowing device described in 2,
  • the narrowing-down device is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the orientation specified by the specifying means. 4).
  • the characteristic part used for narrowing down the car name for each body type is predetermined,
  • the user input receiving means notifies the user of the plurality of characteristic portions according to the body type specified by the specifying means, and receives a user input specifying the length of each of the notified characteristic portions. Narrowing device. 5).
  • the narrowing-down unit is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the body type specified by the specifying unit. 6).
  • the narrowing-down unit narrows down the dictionary data to data of vehicles classified into the body type specified by the specifying unit, and narrows down the vehicle name of the target vehicle. 7).
  • the vehicle name narrowing down further includes a result output means for outputting a narrowed down vehicle name that is a narrowed down vehicle name by the narrowing down means and displaying an image of the vehicle corresponding to the narrowed down vehicle name alongside the image of the target vehicle. Device. 8).
  • the result output means is a vehicle name narrowing device that displays an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.
  • Computer A display control step for displaying an image showing a vehicle subject to a car name narrowing process;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target A narrowing process to narrow down the car name, Car name refinement method to perform. 9-2.
  • the computer further executes a specifying step of specifying the direction of the target vehicle in the image,
  • the characteristic part used for narrowing down the car name for each direction is predetermined
  • the user is notified of the plurality of feature portions according to the orientation specified in the specifying step, and the vehicle name is narrowed down to receive a user input specifying the length of each of the notified feature portions.
  • Method. 9-3 In the method of narrowing down vehicle names described in 9-2, In the narrowing-down step, a vehicle name narrowing-down method for narrowing down the names of the target vehicles based on the ratio of the lengths of the plurality of characteristic portions according to the orientation specified in the specifying step. 9-4.
  • the computer further executes a specifying step of specifying a body type of the target vehicle, The characteristic part used for narrowing down the car name for each body type is predetermined,
  • Narrowing method. 9-5 In the vehicle name narrowing-down method described in 9-4, In the narrowing-down step, a vehicle name narrowing-down method for narrowing down the names of the target vehicles based on the ratio of the lengths of the plurality of characteristic portions according to the body type specified in the specifying step.
  • the computer further executes a specifying step of specifying a body type of the target vehicle, In the narrowing-down step, the dictionary data is narrowed down to the vehicle data classified into the body type identified in the identifying step, and the vehicle name narrowing-down method for narrowing down the vehicle name of the target vehicle. 9-7.
  • a result output step in which the computer outputs a narrowed-down vehicle name, which is a vehicle name narrowed down in the narrowing-down step, and displays a car image corresponding to the narrowed-down vehicle name side by side with an image of the target vehicle.
  • a vehicle name narrowing method for displaying an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image In the result output step, a vehicle name narrowing method for displaying an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image. 10.
  • Computer Display processing execution means for displaying an image showing the target vehicle of the car name narrowing process;
  • User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
  • dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrow down means to narrow down the car name, Program to function as. 10-2.
  • the program described in 10 Causing the computer to further function as specifying means for specifying the direction of the target vehicle in the image;
  • the characteristic part used for narrowing down the car name for each direction is predetermined
  • the user input accepting unit is a program for notifying a user of the plurality of feature portions according to the orientation specified by the specifying unit and receiving a user input specifying the length of each of the notified feature portions.
  • the narrowing-down means is a program for narrowing down the name of the target vehicle based on a ratio of lengths of the plurality of characteristic portions according to the orientation specified by the specifying means. 10-4.
  • the program according to any one of 10 to 10-3 Causing the computer to further function as a specifying means for specifying the body type of the target vehicle;
  • the characteristic part used for narrowing down the car name for each body type is predetermined,
  • the user input receiving means notifies the user of the plurality of characteristic portions according to the body type specified by the specifying means, and receives a user input specifying the length of each of the notified characteristic portions.
  • 10-5 In the program described in 10-4,
  • the narrowing-down means is a program for narrowing down the name of the target vehicle based on a ratio of lengths of the plurality of characteristic portions according to the body type specified by the specifying means. 10-6.
  • the narrowing-down means is a program for narrowing down the name of the target vehicle by narrowing down the dictionary data to data of cars classified into the body type specified by the specifying means. 10-7.
  • the computer further outputs a narrowed-down vehicle name that is the name of the narrowed-down vehicle by the narrowing-down means, and a result output means for displaying an image of the car corresponding to the narrowed-down vehicle name side by side with the image of the target vehicle.
  • a program to function. 10-8 In the program described in 10-7, The result output means is a program for displaying an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.

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Abstract

Provided is a vehicle name narrow-down device (10) having the following: a display control unit (11) that displays an image showing a subject vehicle of a vehicle name narrow-down process; a user input reception unit (12) that receives user input specifying the length of each of a plurality of characteristic parts of the subject vehicle in the image; and a narrow-down unit (13) that narrows down the name of the subject vehicle on the basis of dictionary data indicating ratios of the lengths of the plurality of characteristic parts of each of a plurality of vehicles, and on ratios of lengths of the plurality of characteristic parts of the subject vehicle specified on the basis of the user input.

Description

車名絞込装置、車名絞込方法、及び、プログラムCar name narrowing device, car name narrowing method, and program
　本発明は、車名絞込装置、車名絞込方法、及び、プログラムに関する。 The present invention relates to a car name narrowing device, a car name narrowing method, and a program.
　関連する技術が特許文献１及び２に開示されている。 Related techniques are disclosed in Patent Documents 1 and 2.
　特許文献１には、橋梁を通過する車両の車重を計測するための橋梁通過車両監視システムが開示されている。当該橋梁通過車両監視システムは、ひずみ計と、車間距離データベースと、車軸通過タイミング特定処理部と、軸間比率算出処理部と、軸間距離特定処理部とを有する。 Patent Document 1 discloses a bridge passing vehicle monitoring system for measuring the weight of a vehicle passing through a bridge. The bridge passing vehicle monitoring system includes a strain gauge, an inter-vehicle distance database, an axle passage timing specifying processing unit, an inter-axis ratio calculation processing unit, and an inter-axis distance specifying processing unit.
　ひずみ計は、橋梁における車重の１測定位置ごとに１個が配置されるとともに、測定位置を車軸が通過する際に橋梁に生じるひずみを計測する。車間距離データベースは、予め選定された３軸以上の大型車両の軸間距離のデータを車種とともに登録する。車軸通過タイミング特定処理部は、ひずみ計で計測されたひずみ波形から車軸が通過したタイミングを検出する。軸間比率算出処理部は、車軸通過タイミング特定処理部により検出された車軸の通過タイミングを基に、通過した車両の軸間比率を算出する。軸間距離特定処理部は、軸間比率算出処理部により算出された軸間比率のデータと、軸間距離データベースに登録された軸間距離を基に算出される軸間比率のデータとを比較し、通過した大型車両の軸間距離、車種を特定する。 ひ ず み One strain meter is arranged for each measurement position of the vehicle weight on the bridge, and measures strain generated in the bridge when the axle passes through the measurement position. The inter-vehicle distance database registers the inter-axis distance data of large vehicles having three or more axes selected in advance together with the vehicle type. The axle passage timing identification processing unit detects the timing at which the axle passes from the strain waveform measured by the strain gauge. The inter-shaft ratio calculation processing unit calculates the inter-axis ratio of the vehicle that has passed based on the axle passage timing detected by the axle passage timing specifying processing unit. The inter-axis distance identification processing unit compares the inter-axis ratio data calculated by the inter-axis ratio calculation processing unit with the inter-axis ratio data calculated based on the inter-axis distance registered in the inter-axis distance database. Then, the distance between the axles of the large vehicle that has passed and the vehicle type are specified.
　特許文献２には、昼間中の道路走行車両の車種を判別する車種判別装置が開示されている。当該車種判別装置は、カメラと、処理部とを有する。カメラは、走行車両を撮像する。処理部は、カメラで撮像された画像に基づき、路面を除去するとともに車両先頭位置を検出し、車両先頭位置における車幅及び車両のシルエットに基づき、撮像した走行車両を、「大型乗用車」、「大型貨物車」、「小型乗用車」及び「小型貨物車」に分類する。 Patent Document 2 discloses a vehicle type discriminating apparatus that discriminates a vehicle type of a road traveling vehicle during the daytime. The vehicle type identification device includes a camera and a processing unit. The camera images the traveling vehicle. The processing unit removes the road surface based on the image captured by the camera and detects the vehicle head position. Based on the vehicle width and the vehicle silhouette at the vehicle head position, the processing unit captures the captured traveling vehicle as a `` large passenger car '', `` Classified as "Large freight cars", "Small passenger cars" and "Small freight cars".
特開２００９－２３７８０５号JP 2009-237805 A 特開平１１－３５３５８１号JP-A-11-353581
　カメラで撮影した車の車名を絞り込む技術が望まれている。当該技術は、例えば、警察に利用される。利用例としては、捜査時に、防犯カメラ等に写り込んだ対象車の車名を絞り込む場合が考えられる。その他、当該技術は、一般の人にも利用される。利用例としては、街中で興味深い車を見つけた人が、携帯電話等を用いて当該車を撮影し、撮影した車の車名を検索する場合が考えられる。なお、ここで例示した当該技術の利用例はあくまで一例である。 The technology to narrow down the name of the car photographed with the camera is desired. This technique is used, for example, by the police. As an example of use, there may be a case where the name of the target vehicle reflected in the security camera or the like is narrowed down during the investigation. In addition, this technique is also used by ordinary people. As an example of use, a person who finds an interesting car in the city may take a picture of the car using a mobile phone or the like, and search for the car name of the car taken. In addition, the usage example of the said technique illustrated here is an example to the last.
　特許文献１に記載の技術は、カメラで撮影した車の車名を絞り込む技術でない。 The technique described in Patent Document 1 is not a technique for narrowing down the names of cars taken with a camera.
　特許文献２に記載の技術の場合、カメラで撮影した車を、「大型乗用車」、「大型貨物車」、「小型乗用車」及び「小型貨物車」等に分類できる。しかし、特許文献２に記載の技術の場合、車名を判断することはできない。特許文献２に記載の技術のような分類では不十分な場合がある。例えば、上記例示した利用例の場合、このようなカテゴリーの分類でユーザが満足するとは考えられない。 In the case of the technique described in Patent Document 2, cars photographed with a camera can be classified into “large passenger cars”, “large freight cars”, “small passenger cars”, “small freight cars”, and the like. However, in the case of the technique described in Patent Document 2, the vehicle name cannot be determined. A classification like the technique described in Patent Document 2 may be insufficient. For example, in the case of the above-mentioned usage example, it is not considered that the user is satisfied with such a category classification.
　本発明は、カメラで撮影した車の車名を絞り込む新たな技術を提供することを課題とする。 An object of the present invention is to provide a new technique for narrowing down the names of cars photographed with a camera.
　本発明によれば、
　車名絞込処理の対象車が写った画像を表示させる表示制御手段と、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段と、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段と、
を有する車名絞込装置が提供される。 According to the present invention,
Display control means for displaying an image showing a vehicle subject to a car name narrowing process;
User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrowing means to narrow down the car name,
A vehicle name narrowing-down device is provided.
　また、本発明によれば、
　コンピュータが、
　車名絞込処理の対象車が写った画像を表示させる表示制御工程と、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付工程と、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込工程と、
を実行する車名絞込方法が提供される。 Moreover, according to the present invention,
Computer
A display control step for displaying an image showing a vehicle subject to a car name narrowing process;
A user input receiving step for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target A narrowing process to narrow down the car name,
A vehicle name narrowing-down method is executed.
　また、本発明によれば、
　コンピュータを、
　車名絞込処理の対象車が写った画像を表示させる表示処理実行手段、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段、
として機能させるためのプログラムが提供される。 Moreover, according to the present invention,
Computer
Display processing execution means for displaying an image showing the target vehicle of the car name narrowing process;
User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrow down means to narrow down the car name,
A program for functioning as a server is provided.
　本発明によれば、カメラで撮影した車の車名を絞り込む新たな技術が実現される。 According to the present invention, a new technique for narrowing down the name of a car photographed with a camera is realized.
　上述した目的、およびその他の目的、特徴および利点は、以下に述べる好適な実施の形態、およびそれに付随する以下の図面によってさらに明らかになる。 The above-described object and other objects, features, and advantages will be further clarified by a preferred embodiment described below and the following drawings attached thereto.
本実施形態の装置のハードウエア構成の一例を概念的に示す図である。It is a figure which shows notionally an example of the hardware constitutions of the apparatus of this embodiment. 本実施形態の車名絞込装置１０の機能ブロック図の一例である。It is an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態の車名毎特徴情報の一例を模式的に示す図である。It is a figure which shows typically an example of the feature information for every vehicle name of this embodiment. 本実施形態のパラメータ情報の一例を模式的に示す図である。It is a figure which shows typically an example of the parameter information of this embodiment. 本実施形態の車名毎特徴情報の一例を模式的に示す図である。It is a figure which shows typically an example of the feature information for every vehicle name of this embodiment. 本実施形態の車名絞込装置１０による処理の流れの一例を示すフローチャートである。It is a flowchart which shows an example of the flow of the process by the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態の車名絞込装置１０の作用効果を説明するための図である。It is a figure for demonstrating the effect of the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０の機能ブロック図の一例である。It is an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態の向き毎特徴部分情報の一例を模式的に示す図である。It is a figure which shows typically an example of the characteristic part information for every direction of this embodiment. 本実施形態の車名絞込装置１０による処理の流れの一例を示すフローチャートである。It is a flowchart which shows an example of the flow of the process by the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０の機能ブロック図の一例である。It is an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０が表示させるＵＩ画面の一例である。It is an example of the UI screen which the vehicle name narrowing-down apparatus 10 of this embodiment displays. 本実施形態のボディータイプ毎特徴部分情報の一例を模式的に示す図である。It is a figure which shows typically an example of the characteristic part information for every body type of this embodiment. 本実施形態の車名絞込装置１０による処理の流れの一例を示すフローチャートである。It is a flowchart which shows an example of the flow of the process by the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０の機能ブロック図の一例である。It is an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment. 本実施形態の車名絞込装置１０による処理の流れの一例を示すフローチャートである。It is a flowchart which shows an example of the flow of the process by the vehicle name narrowing-down apparatus 10 of this embodiment. 実施例を説明するための図である。It is a figure for demonstrating an Example. 実施例の作用効果を説明するための図である。It is a figure for demonstrating the effect of an Example. 実施例の作用効果を説明するための図である。It is a figure for demonstrating the effect of an Example. 実施例の作用効果を説明するための図である。It is a figure for demonstrating the effect of an Example.
　まず、本実施形態の装置（車名絞込装置）のハードウエア構成の一例について説明する。本実施形態の装置が備える各部は、任意のコンピュータのＣＰＵ（Central Processing Unit）、メモリ、メモリにロードされるプログラム、そのプログラムを格納するハードディスク等の記憶ユニット（あらかじめ装置を出荷する段階から格納されているプログラムのほか、ＣＤ（Compact Disc）等の記憶媒体やインターネット上のサーバ等からダウンロードされたプログラムをも格納できる）、ネットワーク接続用インタフェイスを中心にハードウエアとソフトウエアの任意の組合せによって実現される。そして、その実現方法、装置にはいろいろな変形例があることは、当業者には理解されるところである。 First, an example of the hardware configuration of the device (vehicle name narrowing device) of the present embodiment will be described. Each unit included in the apparatus of the present embodiment is stored in a CPU (Central Processing Unit), a memory, a program loaded into the memory, a storage unit such as a hard disk storing the program (from the stage of shipping the apparatus in advance). It can also store programs downloaded from CDs (Compact Discs) and other servers and servers on the Internet), and any combination of hardware and software, centering on the network connection interface Realized. It will be understood by those skilled in the art that there are various modifications to the implementation method and apparatus.
　図１は、本実施形態の装置（車名絞込装置）のハードウエア構成の一例を概念的に示す図である。図示するように、本実施形態の装置は、例えば、バス１０Ａで相互に接続されるＣＰＵ１Ａ、ＲＡＭ（Random Access Memory）２Ａ、ＲＯＭ（Read Only Memory）３Ａ、通信部８Ａ、補助記憶装置９Ａ等を有する。なお、本実施形態の装置は、さらに、表示制御部４Ａ、ディスプレイ５Ａ、操作受付部６Ａ、操作部７Ａ等を有してもよい。また、図示しないが、本実施形態の装置は、その他、マイク、スピーカ等の他の要素を備えてもよい。 FIG. 1 is a diagram conceptually illustrating an example of a hardware configuration of a device (vehicle name narrowing device) according to the present embodiment. As shown in the figure, the apparatus of this embodiment includes, for example, a CPU 1A, a RAM (Random Access Memory) 2A, a ROM (Read Only Memory) 3A, a communication unit 8A, an auxiliary storage device 9A, and the like that are connected to each other via a bus 10A. Have. Note that the apparatus of the present embodiment may further include a display control unit 4A, a display 5A, an operation reception unit 6A, an operation unit 7A, and the like. Although not shown, the apparatus according to the present embodiment may include other elements such as a microphone and a speaker.
　ＣＰＵ１Ａは各要素とともに装置のコンピュータ全体を制御する。ＲＯＭ３Ａは、コンピュータを動作させるためのプログラムや各種アプリケーションプログラム、それらのプログラムが動作する際に使用する各種設定データなどを記憶する領域を含む。ＲＡＭ２Ａは、プログラムが動作するための作業領域など一時的にデータを記憶する領域を含む。補助記憶装置９Ａは、例えばＨＤＤ（Hard Disc Drive）であり、大容量のデータを記憶可能である。 CPU 1A controls the entire computer of the apparatus together with each element. The ROM 3A includes an area for storing programs for operating the computer, various application programs, various setting data used when these programs operate. The RAM 2A includes an area for temporarily storing data, such as a work area for operating a program. The auxiliary storage device 9A is, for example, an HDD (Hard Disc Drive), and can store a large amount of data.
　ディスプレイ５Ａは、例えば、表示装置（ＬＥＤ（Light Emitting Diode）表示器、液晶ディスプレイ、有機ＥＬ（Electro Luminescence）ディスプレイ等）である。ディスプレイ５Ａは、タッチパッドと一体になったタッチパネルディスプレイであってもよい。表示制御部４Ａは、ＶＲＡＭ（Video RAM）に記憶されたデータを読み出し、読み出したデータに対して所定の処理を施した後、ディスプレイ５Ａに送って各種画面表示を行う。操作受付部６Ａは、操作部７Ａを介して各種操作を受付ける。操作部７Ａは、操作キー、操作ボタン、スイッチ、ジョグダイヤル、タッチパネルディスプレイ、キーボードなどを含む。通信部８Ａは、有線及び／または無線で、インターネット、ＬＡＮ（Local Area Network）等のネットワークに接続し、他の電子機器と通信する。また、通信部８Ａは、有線及び／または無線で他の電子機器と直接つながり、通信を行うことができる。 The display 5A is, for example, a display device (LED (Light Emitting Diode) display, liquid crystal display, organic EL (Electro Luminescence) display, etc.). The display 5A may be a touch panel display integrated with a touch pad. The display control unit 4A reads data stored in a VRAM (Video RAM), performs predetermined processing on the read data, and then sends the data to the display 5A to display various screens. The operation reception unit 6A receives various operations via the operation unit 7A. The operation unit 7A includes operation keys, operation buttons, switches, a jog dial, a touch panel display, a keyboard, and the like. The communication unit 8A is wired and / or wirelessly connected to a network such as the Internet or a LAN (Local Area Network) and communicates with other electronic devices. Further, the communication unit 8A can directly communicate with another electronic device by wire and / or wireless to perform communication.
　以下、本実施の形態について説明する。なお、以下の実施形態の説明において利用する機能ブロック図は、ハードウエア単位の構成ではなく、機能単位のブロックを示している。これらの図においては、各装置は１つの機器により実現されるよう記載されているが、その実現手段はこれに限定されない。すなわち、物理的に分かれた構成であっても、論理的に分かれた構成であっても構わない。なお、同一の構成要素には同一の符号を付し、適宜説明を省略する。 Hereinafter, this embodiment will be described. Note that the functional block diagram used in the following description of the embodiment shows functional unit blocks rather than hardware unit configurations. In these drawings, each device is described as being realized by one device, but the means for realizing it is not limited to this. That is, it may be a physically separated configuration or a logically separated configuration. In addition, the same code | symbol is attached | subjected to the same component and description is abbreviate | omitted suitably.
＜第１の実施形態＞
　まず、本実施形態の車名絞込装置の概要を説明する。本実施形態の車名絞込装置は、車名絞込処理の対象車が写った画像を表示し、当該画像における対象車の複数の特徴部分（例：全長、車高、ホイールベース等）各々の長さを特定するユーザ入力を受付ける。ここでのユーザ入力は、例えば、各特徴部分の始点及び終点を画像上で指定する入力等である。 <First Embodiment>
First, the outline | summary of the vehicle name narrowing-down apparatus of this embodiment is demonstrated. The vehicle name narrowing device of the present embodiment displays an image in which the target vehicle of the vehicle name narrowing process is shown, and each of a plurality of characteristic parts (eg, full length, vehicle height, wheelbase, etc.) of the target vehicle in the image. Accepts user input specifying the length of The user input here is, for example, an input for designating the start point and end point of each feature portion on the image.
　そして、本実施形態の車名絞込装置は、複数の車各々の複数の特徴部分の長さの比率を示す辞書データと、上記ユーザ入力に基づき特定された対象車の複数の特徴部分の長さの比率と、に基づき、対象車の車名を絞り込む。具体的には、上記比率が対象車と似ている車の車名を、対象車の車名の候補として特定する。 The vehicle name narrowing device of the present embodiment includes dictionary data indicating the ratio of the lengths of the plurality of characteristic portions of each of the plurality of vehicles, and the lengths of the plurality of characteristic portions of the target vehicle specified based on the user input. Based on the ratio, narrow down the name of the target vehicle. Specifically, the name of a vehicle whose ratio is similar to that of the target vehicle is specified as a candidate for the name of the target vehicle.
　以下、本実施形態の車名絞込装置の構成について詳細に説明する。図２に、本実施形態の車名絞込装置１０の機能ブロック図の一例を示す。図示するように、車名絞込装置１０は、表示制御部１１と、ユーザ入力受付部１２と、絞込部１３とを有する。 Hereinafter, the configuration of the vehicle name narrowing device of the present embodiment will be described in detail. In FIG. 2, an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment is shown. As shown in the figure, the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, and a narrowing unit 13.
　表示制御部１１は、車名絞込処理の対象車が写った画像を表示させる。例えば、ディスプレイに画像を表示させてもよいし、所定位置に画像を投影してもよい。画像ファイルは、任意の手段で車名絞込装置１０に入力される。そして、表示制御部１１は、入力された画像ファイルを用いて、所定の画像を表示させる。 The display control unit 11 displays an image showing the target vehicle for the vehicle name narrowing process. For example, an image may be displayed on a display, or an image may be projected at a predetermined position. The image file is input to the vehicle name narrowing device 10 by any means. The display control unit 11 displays a predetermined image using the input image file.
　図３に、車名絞込装置１０がディスプレイに表示したユーザインターフェイス画面（以下、「ＵＩ画面」）の一例を模式的に示す。当該ＵＩ画面は、対象車表示エリア１と、結果表示エリア２と、ユーザ入力受付エリア３とを有する。 FIG. 3 schematically shows an example of a user interface screen (hereinafter, “UI screen”) displayed on the display by the vehicle name narrowing device 10. The UI screen has a target vehicle display area 1, a result display area 2, and a user input reception area 3.
　当該ＵＩ画面の場合、例えばポインター４を用いてユーザ入力受付エリア３における「画像選択」ボタンが選択されると、表示制御部１１がアクセス可能な記憶装置（例：車名絞込装置１０が備える記憶装置、車名絞込装置１０とその時点で通信可能に繋がっている外部記憶装置等）に記憶された画像ファイルの一覧が表示される。その中の一つの画像ファイルを選択するユーザ入力がなされると、表示制御部１１は、選択された画像を対象車表示エリア１に表示させる。結果表示エリア２及びユーザ入力受付エリア３の他の部分の説明は、後述する。 In the case of the UI screen, for example, when the “select image” button in the user input reception area 3 is selected using the pointer 4, a storage device (for example, the vehicle name narrowing device 10) that the display control unit 11 can access is provided. A list of image files stored in the storage device, the car name narrowing device 10 and an external storage device connected to be communicable at that time is displayed. When a user input for selecting one of the image files is made, the display control unit 11 displays the selected image in the target vehicle display area 1. The other parts of the result display area 2 and the user input reception area 3 will be described later.
　図２に戻り、ユーザ入力受付部１２は、表示制御部１１が表示させる画像における対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付ける。特徴部分は、車幅、全長、ヘッドライト間隔、車高、ホイールベース等、車名ごとにその比率がバラツク部分である。特徴部分各々の長さを特定するユーザ入力は、例えば、各特徴部分の始点及び終点を画像上で指定する入力が考えられるが、その他であってもよい。 2, the user input receiving unit 12 receives a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image displayed by the display control unit 11. The characteristic portion is a portion where the ratio varies for each vehicle name, such as the vehicle width, the total length, the headlight interval, the vehicle height, and the wheel base. The user input for specifying the length of each feature portion may be, for example, an input for designating the start point and end point of each feature portion on the image, but may be other.
　図３のＵＩ画面の場合、３つの特徴部分、具体的には、ホイールベース、車高及び全長を特定するユーザ入力を受付けるようになっている。例えばポインター４を用いてユーザ入力受付エリア３における「ホイールベース設定」ボタンが選択されると、ユーザ入力受付部１２は、ホイールベースの長さを特定するユーザ入力待ち状態となる。当該状態時に、ユーザは、例えばポインター４を用い、対象車表示エリア１に表示された画像上で、ホイールベースの始点及び終点を指定する入力を行う。例えば、ユーザは、始点にポインター４を合わせて所定の入力を行うとともに、終点にポインター４を合わせて所定の入力を行う。そして、ユーザは、車高及び全長においても同様の処理を行う。 In the case of the UI screen shown in FIG. 3, the user input for specifying three characteristic portions, specifically, the wheel base, the vehicle height, and the total length is received. For example, when the “wheel base setting” button in the user input reception area 3 is selected using the pointer 4, the user input reception unit 12 enters a user input waiting state for specifying the length of the wheel base. In this state, for example, the user uses the pointer 4 to perform an input for designating the start point and end point of the wheel base on the image displayed in the target vehicle display area 1. For example, the user performs a predetermined input by placing the pointer 4 at the start point, and performs a predetermined input by placing the pointer 4 at the end point. And a user performs the same process also in vehicle height and full length.
　図３のＵＩ画面の場合、ユーザが始点及び終点を指定すると、指定された始点及び終点の座標（例：対象車表示エリア１に表示された画像内の座標）が表示されるようになっている。 In the case of the UI screen of FIG. 3, when the user designates the start point and end point, the coordinates of the designated start point and end point (for example, coordinates in the image displayed in the target vehicle display area 1) are displayed. Yes.
　なお、ここでは、ユーザ入力受付部１２は、ホイールベース、車高及び全長の３つの特徴部分の長さを特定するユーザ入力を受付ける例を説明したが、特徴部分の数及び種類はこの例に限定されない。 In addition, although the user input reception part 12 demonstrated the example which receives the user input which specifies the length of three characteristic parts, a wheelbase, vehicle height, and full length here, the number and kind of characteristic parts are in this example. It is not limited.
　図２に戻り、絞込部１３は、複数の車各々の複数の特徴部分の長さの比率を示す辞書データと、ユーザ入力に基づき特定された対象車の複数の特徴部分の長さの比率と、に基づき、対象車の車名を絞り込む。例えば、絞込部１３は、対象車の複数の特徴部分の長さの比率と、複数の車各々の複数の特徴部分の長さの比率との類似度を算出し、類似度が高い（類似している）方から所定数の車の車名を、対象車の車名の候補として特定する。絞り込む候補の数は設計的事項であり、例えば、５、１０、３０、５０等としてもよい。例えば、ユーザが、絞り込む候補の数を選択できてもよい。その他、絞込部１３は、類似度が所定レベル以上の車を特定し、その車名を対象車の車名の候補としてもよい。なお、類似度が所定レベル以上の車が存在しない場合、車名絞込装置１０は、その旨をユーザに向けて通知してもよい。例えば、図３に示すＵＩ画面の結果表示エリア２に上記情報が表示されてもよい。 Returning to FIG. 2, the narrowing-down unit 13 uses the dictionary data indicating the ratio of the lengths of the plurality of feature portions of each of the plurality of vehicles and the ratio of the lengths of the plurality of feature portions of the target vehicle specified based on the user input. Based on the above, the name of the target vehicle is narrowed down. For example, the narrowing-down unit 13 calculates the similarity between the ratio of the lengths of the plurality of characteristic portions of the target vehicle and the ratio of the lengths of the plurality of characteristic portions of each of the plurality of vehicles, and the similarity is high (similarity). The names of a predetermined number of vehicles are identified as candidates for the names of the target vehicles. The number of candidates for narrowing down is a design matter, and may be, for example, 5, 10, 30, 50, or the like. For example, the user may be able to select the number of candidates to narrow down. In addition, the narrowing-down unit 13 may specify a vehicle having a similarity level equal to or higher than a predetermined level, and may use the vehicle name as a candidate for the vehicle name of the target vehicle. In addition, when there is no vehicle having a degree of similarity equal to or higher than a predetermined level, the vehicle name narrowing device 10 may notify the user to that effect. For example, the above information may be displayed in the result display area 2 of the UI screen shown in FIG.
　ここで、絞込部１３による絞込処理の一例を説明する。なお、以下の処理はあくまで一例であり、同様な作用効果が得られる他の処理とすることも可能である。 Here, an example of a narrowing process by the narrowing unit 13 will be described. Note that the following processing is merely an example, and it is possible to use other processing that can obtain the same effect.
＜複数の車各々の複数の特徴部分の長さの比率を算出する処理＞
　まず、絞込部１３は、車名毎特徴情報、及び、パラメータ情報を利用可能に構成される。図４に、車名毎特徴情報の一例を模式的に示す。また、図５に、パラメータ情報の一例を模式的に示す。車名毎特徴情報及びパラメータ情報は、車名絞込装置１０内に記憶されてもよいし、車名絞込装置１０と通信可能に構成された外部装置に記憶されてもよい。 <Process for calculating ratios of lengths of a plurality of characteristic portions of a plurality of vehicles>
First, the narrowing-down unit 13 is configured to be able to use feature information for each vehicle name and parameter information. FIG. 4 schematically shows an example of the feature information for each vehicle name. FIG. 5 schematically shows an example of parameter information. The feature information and parameter information for each vehicle name may be stored in the vehicle name narrowing device 10 or may be stored in an external device configured to be communicable with the vehicle name narrowing device 10.
　車名毎特徴情報は、車名と、パラメータ値とを対応付けた辞書データである。図示するように、さらにボディータイプを対応付けてもよい。車名は、各車の固有の名称である。 The feature information for each vehicle name is dictionary data in which the vehicle name is associated with the parameter value. As shown in the figure, body types may be further associated. The car name is a unique name of each car.
　図４のパラメータ値の項目に記載されている「００１」、「００２」・・・は、複数の特徴部分各々に対応するパラメータＩＤである。図５のパラメータ情報において、パラメータＩＤと、特徴部分の名称とが対応付けられている。図４に示す車名毎特徴情報のパラメータ値の欄には、各車の複数の特徴部分各々の長さが記載される。各車の複数の特徴部分各々の長さは、各車のメーカーが公表している値であってもよいし、車名絞込装置１０の管理者が実測した値であってもよい。 4. “001”, “002”... Described in the parameter value item of FIG. 4 are parameter IDs corresponding to each of a plurality of feature portions. In the parameter information of FIG. 5, the parameter ID is associated with the name of the feature part. In the parameter value column of the feature information for each vehicle name shown in FIG. 4, the length of each of the plurality of feature portions of each vehicle is described. The length of each of the plurality of characteristic portions of each car may be a value published by the manufacturer of each car, or may be a value actually measured by an administrator of the vehicle name narrowing device 10.
　なお、図６に示すように、車名を年式ごとに分け、車名毎特徴情報にさらに年式の欄を加えてもよい。このようにすれば、絞込部１３は、対象車の車名のみならず、年式をも絞り込むことができる。さらに、図示しないが、各車名に、各々のメーカー名がさらに対応付けられていてもよい。 In addition, as shown in FIG. 6, the car name may be divided for each year and a year column may be added to the feature information for each car name. In this way, the narrowing-down unit 13 can narrow down not only the name of the target vehicle but also the year. Furthermore, although not shown, each manufacturer name may be further associated with each vehicle name.
　絞込部１３は、このような車名毎特徴情報及びパラメータ情報に基づき、車名毎に、各特徴部分の長さを特定することができる。 The narrowing-down unit 13 can specify the length of each feature part for each vehicle name based on the feature information and parameter information for each vehicle name.
　次に、絞込部１３は、「車名毎特徴情報及びパラメータ情報に基づき特定した、各車の各特徴部分の長さ」に基づき、車名毎に、複数の特徴部分の長さの比率を算出する。例えば、絞込部１３は、車名毎に、複数の特徴部分で所定のペア（例：予め定められ特徴部分同士のペア、作成可能なあらゆるペア等）を作成し、ペア毎に、一方から他方を割ることで、長さの比率を算出してもよい。以下、一例を示す。例えば、絞込部１３は、以下の式１に基づき、複数の特徴部分の長さの比率（αｎ、βｎ、γｎ）を算出してもよい。 Next, the narrowing-down unit 13 determines the ratio of the lengths of a plurality of feature portions for each vehicle name based on “the length of each feature portion of each vehicle specified based on the feature information and parameter information for each vehicle name”. Is calculated. For example, the narrowing-down unit 13 creates a predetermined pair (for example, a predetermined pair of feature parts, any pair that can be created, etc.) with a plurality of feature parts for each vehicle name. The length ratio may be calculated by dividing the other. An example is shown below. For example, the narrowing-down unit 13 may calculate the ratio of the lengths of the plurality of feature portions (α n , β n , γ n ) based on the following Equation 1.
Figure JPOXMLDOC01-appb-M000001
Figure JPOXMLDOC01-appb-M000001
　ｎは、複数の車名の通番である。Ｗｎは、ｎ番目の名称の車のホイールベースの長さである。Ｈｎは、ｎ番目の名称の車の車高である。Ｌｎは、ｎ番目の名称の車の全長である。αｎはホイールベースと車高の比率である。βｎはホイールベースと全長の比率である。γｎは車高と全長の比率である。 n is a serial number of a plurality of vehicle names. W n is the length of the wheel base of the nth named car. H n is a vehicle height of the n-th of the name of the car. L n is the total length of the car of the nth name. α n is the ratio of wheelbase to vehicle height. β n is the ratio of the wheel base to the total length. γ n is the ratio of the vehicle height to the total length.
＜ユーザ入力に基づき特定された対象車の複数の特徴部分の長さの比率を算出する処理＞
　絞込部１３は、ユーザ入力受付部１２が受付けたユーザ入力に基づき、対象車の複数の特徴部分各々の長さを特定する。ここで特定する長さは、対象車の複数の特徴部分各々の画像における長さとすることができる。すなわち、図３に示す例のように各特徴部分の始点及び終点がユーザ入力で指定された場合、絞込部１３は、始点及び終点間の距離を、その特徴部分の長さとして算出する。 <Process for calculating a ratio of lengths of a plurality of characteristic portions of the target vehicle specified based on user input>
The narrowing-down unit 13 specifies the length of each of the plurality of characteristic portions of the target vehicle based on the user input received by the user input receiving unit 12. The length specified here can be the length in the image of each of the plurality of characteristic portions of the target vehicle. That is, as in the example illustrated in FIG. 3, when the start point and the end point of each feature part are designated by user input, the narrowing unit 13 calculates the distance between the start point and the end point as the length of the feature part.
　その後、絞込部１３は、算出した対象車の複数の特徴部分各々の長さに基づき、複数の特徴部分の長さの比率を算出する。絞込部１３は、複数の特徴部分でペア（上記車名ごとに長さの比率を算出する処理と同様なペア）を作成し、ペア毎に、一方から他方を割ることで、長さの比率を算出してもよい。以下、一例を示す。例えば、絞込部１３は、以下の式２に基づき、複数の特徴部分の長さの比率（α０、β０、γ０）を算出してもよい。 Thereafter, the narrowing-down unit 13 calculates the ratio of the lengths of the plurality of feature portions based on the calculated lengths of the plurality of feature portions of the target vehicle. The narrowing-down unit 13 creates a pair (a pair similar to the process of calculating the ratio of the length for each vehicle name) with a plurality of characteristic parts, and divides the other from one to the other for each pair. A ratio may be calculated. An example is shown below. For example, the narrowing-down unit 13 may calculate the ratio of the lengths of the plurality of characteristic portions (α 0 , β 0 , γ 0 ) based on Equation 2 below.
Figure JPOXMLDOC01-appb-M000002
Figure JPOXMLDOC01-appb-M000002
　Ｗ０は、ユーザ入力に基づき特定された対象車のホイールベースの長さである。Ｈ０は、ユーザ入力に基づき特定された対象車の車高である。Ｌ０は、ユーザ入力に基づき特定された対象車の全長である。α０はホイールベースと車高の比率である。β０はホイールベースと全長の比率である。γ０は車高と全長の比率である。 W 0 is the length of the wheel base of the target vehicle specified based on the user input. H 0 is the vehicle height of the target vehicle specified based on the user input. L 0 is the total length of the target vehicle specified based on the user input. α 0 is the ratio of wheelbase to vehicle height. β 0 is the ratio of the wheelbase to the total length. γ 0 is the ratio of the vehicle height to the total length.
＜類似度を算出する処理＞
　絞込部１３は、複数の車各々の複数の特徴部分の長さの比率と、ユーザ入力に基づき特定された対象車の複数の特徴部分の長さの比率との類似度を算出する。類似度の算出方法は設計的事項である。例えば、絞込部１３は、以下の式３に基づき、類似度（Ｄ１、Ｄ２・・Ｄｎ）を算出してもよい。Ｄｎは対象車とｎ番目の名称の車との類似度を示す。当該式に基づき算出される類似度は、値が小さい程類似していることになる。 <Process for calculating similarity>
The narrowing-down unit 13 calculates the similarity between the ratio of the lengths of the plurality of feature portions of each of the plurality of vehicles and the ratio of the lengths of the plurality of feature portions of the target vehicle specified based on the user input. The method of calculating the similarity is a design matter. For example, the narrowing-down unit 13 may calculate the similarity (D 1 , D 2 ·· D n ) based on the following Expression 3. D n indicates the degree of similarity between the target vehicle and the n-th named vehicle. The similarity calculated based on the formula is more similar as the value is smaller.
Figure JPOXMLDOC01-appb-M000003
Figure JPOXMLDOC01-appb-M000003
　以上説明した例では、複数の特徴部分がホイールベース、車高及び全長である場合を例にとったが、複数の特徴部分がこの組み合わせと異なる場合（例：他の特徴部分を含む、一部の特徴部分を含まない等）も、同様にして長さの比率を算出することができる。そして、同様にして類似度を算出することができる。 In the example described above, the case where the plurality of characteristic portions are the wheel base, the vehicle height, and the total length is taken as an example, but the case where the plurality of characteristic portions are different from this combination (example: a part including other characteristic portions) The ratio of lengths can be calculated in the same manner. Similarly, the similarity can be calculated.
　次に、図７のフローチャートに基づき、車名絞込装置１０の処理の流れの一例を説明する。 Next, an example of the processing flow of the vehicle name narrowing device 10 will be described based on the flowchart of FIG.
　まず、表示制御部１１が、車名絞込処理の対象車が写った画像を表示させる（Ｓ１０）。 First, the display control unit 11 displays an image showing the target vehicle for the vehicle name narrowing process (S10).
　例えば、図８に示すようなＵＩ画面において、ポインター４を用いてユーザ入力受付エリア３における「画像選択」ボタンが選択されると、表示制御部１１がアクセス可能な記憶装置（例：車名絞込装置１０が備える記憶装置、車名絞込装置１０とその時点で通信可能に繋がっている外部記憶装置等）に記憶された画像ファイルの一覧が表示される。その中の一つの画像ファイルを選択するユーザ入力がなされると、表示制御部１１は、図９に示すように、選択された画像を対象車表示エリア１に表示させる。 For example, in the UI screen as shown in FIG. 8, when the “select image” button in the user input reception area 3 is selected using the pointer 4, a storage device (for example, car name narrowing) accessible by the display control unit 11 is selected. A list of image files stored in a storage device included in the storage device 10, an external storage device connected to the vehicle name narrowing-down device 10 at that time, or the like. When a user input for selecting one of the image files is made, the display control unit 11 displays the selected image in the target vehicle display area 1 as shown in FIG.
　次に、ユーザ入力受付部１２が、表示制御部１１により表示された画像における対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付ける（Ｓ１１）。 Next, the user input receiving unit 12 receives a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image displayed by the display control unit 11 (S11).
　例えば、図９に示すＵＩ画面において、ポインター４を用いてユーザ入力受付エリア３における「ホイールベース設定」ボタンが選択されると、ユーザ入力受付部１２は、ホイールベースの長さを特定するユーザ入力待ち状態となる。当該状態時に、ユーザは、例えばポインター４を用い、対象車表示エリア１に表示された画像上で、ホイールベースの始点及び終点を指定する入力を行う。 For example, in the UI screen shown in FIG. 9, when the “wheel base setting” button in the user input reception area 3 is selected using the pointer 4, the user input reception unit 12 causes the user input to specify the length of the wheel base. It will be in a waiting state. In this state, for example, the user uses the pointer 4 to perform an input for designating the start point and end point of the wheel base on the image displayed in the target vehicle display area 1.
　例えば、ユーザは、始点にポインター４を合わせて所定の入力を行うとともに、終点にポインター４を合わせて所定の入力を行う。そして、ユーザは、車高及び全長においても同様の処理を行う。当該ユーザ入力に応じて、図１０のＵＩ画面に示すように、指定された始点及び終点の座標（例：対象車表示エリア１に表示された画像内の座標）が表示されてもよい。 For example, the user performs a predetermined input by placing the pointer 4 at the start point and performing a predetermined input by placing the pointer 4 at the end point. And a user performs the same process also in vehicle height and full length. In response to the user input, as shown in the UI screen of FIG. 10, designated start point and end point coordinates (for example, coordinates in an image displayed in the target vehicle display area 1) may be displayed.
　図１０に示すように、すべての特徴部分（図の例の場合、ホイールベース、車高及び全長）を特定するユーザ入力が完了後、ポインター４を用いてユーザ入力受付エリア３における「照合実行」ボタンが選択されると、絞込部１３は、対象車の車名を絞り込む処理を開始する（Ｓ１２）。絞込部１３による当該処理の詳細は、上述の通りであるので、ここでの説明は省略する。 As shown in FIG. 10, after the user input specifying all the characteristic portions (in the example shown in the figure, wheelbase, vehicle height, and total length) is completed, “verification execution” is performed in the user input reception area 3 using the pointer 4. When the button is selected, the narrowing-down unit 13 starts a process of narrowing down the vehicle name of the target vehicle (S12). Since the details of the processing by the narrowing-down unit 13 are as described above, description thereof is omitted here.
　その後、図３のＵＩ画面に示すように、絞込部１３による絞込の結果が結果表示エリア２に表示される。 Thereafter, as shown in the UI screen of FIG. 3, the result of narrowing by the narrowing unit 13 is displayed in the result display area 2.
　図３に示す例の場合、類似度が高い（値が小さい）方から所定数の車名が、対象車の車名の候補として一覧表示されている。そして、各候補に対応付けて、類似度が表示されている。 In the case of the example shown in FIG. 3, a predetermined number of vehicle names are listed as candidates for the vehicle name of the target vehicle from the one with a higher similarity (value is smaller). The similarity is displayed in association with each candidate.
　次に、本実施形態の作用効果について説明する。
　本実施形態の車名絞込装置１０は、車の複数の特徴部分の長さの比率に基づき、画像に写った対象車の車名を絞り込む。 Next, the effect of this embodiment is demonstrated.
The vehicle name narrowing device 10 of the present embodiment narrows down the vehicle names of the target vehicles shown in the image based on the ratio of the lengths of the plurality of characteristic portions of the vehicle.
　図１１は、各車の複数の特徴部分の長さの比率がばらつくことを示すデータである。図は、ランダムに抽出した互いに車名が異なる１００種類の車のデータである。複数の特徴部分は、ホイールベース、車高及び全長の３種類とした。縦軸の値は、上述した式１に基づき、車名ごとに複数の上記３種類の特徴部分の長さの比率（αｎ、βｎ、γｎ）を算出した後、（α０、β０、γ０）＝（０、０、０）として、式３に基づき算出した類似度（Ｄ１、Ｄ２・・Ｄｎ）の値である。 FIG. 11 is data indicating that the ratio of the lengths of the plurality of characteristic portions of each vehicle varies. The figure shows data of 100 types of vehicles with different vehicle names extracted at random. There are three types of characteristic parts: wheelbase, vehicle height, and overall length. The value of the vertical axis is calculated based on the above-described equation 1, and after calculating the ratio of the lengths of the above-described three types of characteristic portions (α n , β n , γ n ) for each vehicle name, (α 0 , β 0 , γ 0 ) = ( 0 , 0 , 0 ), which are values of similarity (D 1 , D 2 ... D n ) calculated based on Equation 3.
　図示するように、特定の値に集中することなく、よくばらついていることが分かる。このデータより、車の複数の特徴部分の長さの比率に基づき、画像に写った対象車の車名を絞り込めることが分かる。 As shown in the figure, it can be seen that the values vary well without concentrating on specific values. From this data, it can be seen that the name of the target vehicle in the image can be narrowed down based on the ratio of the lengths of the plurality of characteristic portions of the vehicle.
　なお、本実施形態の車名絞込装置１０は、対象車の車名の候補（対象車の車名と考えられる候補）をある程度の数に絞り込むことを目的としており、対象車の車名を正確に特定することを目的としたものではない。このため、図１１に示すように、類似度が似ている車名がいくつか存在しても、本実施形態の車名絞込装置１０の目的を十分に達することができる。 The vehicle name narrowing device 10 of the present embodiment aims to narrow down the candidate names of the target vehicles (candidates that can be considered as the target vehicle names) to a certain number, It is not intended to be accurate. For this reason, as shown in FIG. 11, even if there are several vehicle names having similarities, the object of the vehicle name narrowing device 10 of this embodiment can be sufficiently achieved.
　以上説明したように、本実施形態の車名絞込装置１０によれば、カメラで撮影した車の車名を絞り込む新たな技術が実現される。 As described above, according to the vehicle name narrowing-down device 10 of the present embodiment, a new technology for narrowing down the vehicle name of a vehicle photographed with a camera is realized.
＜第２の実施形態＞
　まず、本実施形態の車名絞込装置１０の概要を説明する。本実施形態の車名絞込装置１０は、表示制御部１１が表示させる画像に写っている対象車の向きを特定し、その向きに応じた特徴部分の長さを特定するユーザ入力を受付ける点で、第１の実施形態の車名絞込装置１０と異なる。 <Second Embodiment>
First, the outline | summary of the vehicle name narrowing-down apparatus 10 of this embodiment is demonstrated. The vehicle name narrowing device 10 according to the present embodiment identifies the direction of the target vehicle shown in the image displayed by the display control unit 11 and accepts a user input that identifies the length of the characteristic portion according to the direction. Thus, it is different from the vehicle name narrowing-down device 10 of the first embodiment.
　本実施形態では、表示制御部１１が表示させる画像に写る対象車の向き毎に、車名の絞込に用いる特徴部分が予め定められている。 In the present embodiment, a characteristic portion used for narrowing down the vehicle name is determined in advance for each direction of the target vehicle in the image displayed by the display control unit 11.
　画像における対象車の向きによっては、特徴部分の比率が、実際の比率から乖離する場合がある。例えば、画像における対象車の向きが真横である場合、画像における車高とホイールベースとの比率は、実際の比率と同等な結果となる。しかし、画像における対象車の向きが、例えばななめ（前面側）である場合、画像における車高とホイールベースとの比率は、実際の比率から乖離し得る。このため、画像における対象車の向きに応じた適切な特徴部分を用い、車名の絞込を行わなければ、絞込の精度が悪くなる。 * Depending on the orientation of the target vehicle in the image, the ratio of the characteristic part may deviate from the actual ratio. For example, when the direction of the target vehicle in the image is just beside, the ratio between the vehicle height and the wheel base in the image is the same as the actual ratio. However, when the direction of the target vehicle in the image is, for example, licked (front side), the ratio between the vehicle height and the wheelbase in the image can deviate from the actual ratio. For this reason, unless an appropriate feature portion corresponding to the direction of the target vehicle in the image is used and the vehicle name is not narrowed down, the narrowing down accuracy is deteriorated.
　また、画像における対象車の向きによっては、画像に写らない特徴部分が存在し得る。例えば、画像における対象車の向きが真正面（前面）である場合、ホイールベース部分は画像に写らない。それにも関わらず、画像に写らない特徴部分の長さを特定するユーザ入力を受付けるように構成していると、その案内を見たユーザが混乱してしまう。例えば、図３に示すＵＩ画面において、ユーザ入力受付エリア３に、さらに、ヘッドライト間隔の長さを特定する入力欄が存在する場合、ユーザは、対象車表示エリア１に写る画像上でどのようにヘッドライト間隔の始点及び終点を指定したらよいか把握できず、混乱してしまう。 Also, depending on the orientation of the target vehicle in the image, there may be a feature portion that is not shown in the image. For example, when the direction of the target vehicle in the image is directly in front (front surface), the wheelbase portion is not captured in the image. Nevertheless, if it is configured to accept a user input specifying the length of a feature portion that is not shown in the image, the user who sees the guidance will be confused. For example, in the UI screen shown in FIG. 3, when there is an input field for specifying the length of the headlight interval in the user input reception area 3, how is the user displayed on the image displayed in the target vehicle display area 1? It is confusing because it is impossible to grasp whether the start point and end point of the headlight interval should be specified.
　本実施形態の車名絞込装置１０によれば、このような不都合を回避できる。 According to the vehicle name narrowing device 10 of this embodiment, such inconvenience can be avoided.
　以下、本実施形態の車名絞込装置の構成について詳細に説明する。図１２に、本実施形態の車名絞込装置１０の機能ブロック図の一例を示す。図示するように、車名絞込装置１０は、表示制御部１１と、ユーザ入力受付部１２と、絞込部１３と、特定部１４とを有する。表示制御部１１の構成は、第１の実施形態と同様である。 Hereinafter, the configuration of the vehicle name narrowing device of the present embodiment will be described in detail. In FIG. 12, an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment is shown. As illustrated, the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a specifying unit 14. The configuration of the display control unit 11 is the same as that of the first embodiment.
　特定部１４は、画像における対象車の向きを特定する。画像における対象車の向きは、例えば、真正面（前面）、真横、真正面（背面）、ななめ（前面側）、ななめ（後面側）、真正面（前面）－上方から、真横－上方から、真正面（背面）－上方から、ななめ（前面側）－上方から、ななめ（後面側）－上方から、等が考えられる。画像における対象車の向きは、さらに、上方からの角度や、ななめの角度等を用いて細分化してもよい。 The specifying unit 14 specifies the direction of the target vehicle in the image. The orientation of the target vehicle in the image is, for example, straight front (front), straight side, straight front (back), lick (front side), lick (rear side), straight front (front)-from top, right side-top, straight front (back). )-From above, licking (front side)-From above, licking (rear side)-From above, etc. are conceivable. The direction of the target vehicle in the image may be further subdivided using an angle from above, a slanted angle, or the like.
　特定部１４は、ユーザ入力に基づき画像における対象車の向きを特定してもよいし、画像を解析して画像における対象車の向きを特定してもよい。 The specifying unit 14 may specify the direction of the target vehicle in the image based on the user input, or may analyze the image and specify the direction of the target vehicle in the image.
　例えば、図１３に示すＵＩ画面のように、対象車表示エリア１に表示されている対象車の向きを指定する入力欄が設けられてもよい。図の例の場合、ユーザ入力受付エリア３に、プルダウンメニューで画像における対象車の向きを指定する入力欄が設けられている。例えば、ユーザ入力受付部１２は、当該プルダウンメニューから、画像における対象車の向きを指定するユーザ入力を受付けてもよい。そして、特定部１４は、ユーザ入力で指定された向きを、画像における対象車の向きとして特定してもよい。 For example, like the UI screen shown in FIG. 13, an input field for designating the direction of the target vehicle displayed in the target vehicle display area 1 may be provided. In the case of the example in the figure, the user input acceptance area 3 is provided with an input field for designating the direction of the target vehicle in the image using a pull-down menu. For example, the user input receiving unit 12 may receive a user input specifying the direction of the target vehicle in the image from the pull-down menu. Then, the specifying unit 14 may specify the direction specified by the user input as the direction of the target vehicle in the image.
　次に、画像解析により画像における対象車の向きを特定する例を説明する。例えば、タイヤの形状により対象車の向きを特定する例が考えられる。画像における対象車の向きに応じて、画像におけるタイヤの形状が異なる。画像における対象車の向きが真横である場合、画像におけるタイヤの形状は円形となる。画像における対象車の向きが真正面又はななめである場合、画像におけるタイヤの形状は円形から歪んだ所定形状となる。画像におけるタイヤの形状を特定することで、画像における対象車の向きを特定することができる。 Next, an example in which the orientation of the target vehicle in the image is specified by image analysis will be described. For example, an example in which the direction of the target vehicle is specified by the shape of the tire can be considered. The shape of the tire in the image varies depending on the direction of the target vehicle in the image. When the direction of the target vehicle in the image is just beside, the shape of the tire in the image is a circle. When the direction of the target vehicle in the image is directly in front or licked, the shape of the tire in the image is a predetermined shape distorted from a circle. By specifying the shape of the tire in the image, the direction of the target vehicle in the image can be specified.
　さらに、タイヤの位置関係を考慮することもできる。画像における対象車の向きに応じて、画像における２つのタイヤの位置関係が特徴的になる。ここで、画像の左右方向をｘ軸方向とし、画像の上下方向をｙ軸方向とする。画像における対象車の向きが真横や真正面である場合、画像における２つのタイヤの代表点（例：中心点、最高点、最低点）のｙ座標はほぼ等しくなる。画像における対象車の向きがななめである場合、画像における２つのタイヤの代表点（例：中心点、最高点、最低点）のｙ座標は異なる。画像における２つのタイヤの位置関係を特定することで、画像における対象車の向きを特定することができる。 Furthermore, it is possible to consider the positional relationship of the tires. Depending on the orientation of the target vehicle in the image, the positional relationship between the two tires in the image becomes characteristic. Here, the horizontal direction of the image is the x-axis direction, and the vertical direction of the image is the y-axis direction. When the direction of the target vehicle in the image is just beside or directly in front, the y-coordinates of the representative points (eg, center point, highest point, lowest point) of the two tires in the image are almost equal. When the direction of the target vehicle in the image is licked, the y-coordinates of the representative points (eg, center point, highest point, lowest point) of the two tires in the image are different. By specifying the positional relationship between the two tires in the image, the direction of the target vehicle in the image can be specified.
　図１２に戻り、ユーザ入力受付部１２は、特定部１４が特定した画像における対象車の向きに応じた複数の特徴部分をユーザに通知し、通知した複数の特徴部分各々の長さを特定するユーザ入力を受付ける。すなわち、ユーザ入力受付部１２は、画像における対象車の向きに応じて、ユーザ入力を受付ける特徴部分を調整する。 Returning to FIG. 12, the user input receiving unit 12 notifies the user of a plurality of feature portions according to the direction of the target vehicle in the image specified by the specifying unit 14, and specifies the length of each of the notified feature portions. Accept user input. That is, the user input receiving unit 12 adjusts the characteristic part that receives the user input according to the direction of the target vehicle in the image.
　例えば、ユーザ入力受付部１２は、図１４に示すような、向き毎特徴部分情報を保持しておいてもよい。図示する向き毎特徴部分情報は、画像における対象車の向き（向きの欄）と、各向きの際に車名の絞込に用いる特徴部分（パラメータＩＤの欄）とを対応付けている。 For example, the user input receiving unit 12 may hold the feature portion information for each orientation as shown in FIG. The characteristic part information for each direction shown in the figure associates the direction of the target vehicle (direction column) in the image with the characteristic part (parameter ID column) used for narrowing down the vehicle name in each direction.
　図５のパラメータ情報と、図１４の向き毎特徴部分情報とによれば、画像における対象車の向きが真正面（前面）である場合、車幅（パラメータＩＤ：００１）、ヘッドライト間隔（パラメータＩＤ：００３）等が、車名の絞込に用いられることが分かる。 According to the parameter information in FIG. 5 and the feature part information for each direction in FIG. 14, when the direction of the target vehicle in the image is the front (front), the vehicle width (parameter ID: 001), the headlight interval (parameter ID : 003) is used for narrowing down the vehicle name.
　ユーザ入力受付部１２は、特定部１４が特定した画像における対象車の向き、図５のパラメータ情報及び図１４の向き毎特徴部分情報に基づき、車名の絞込に用いられる特徴部分を特定する。そして、ユーザ入力受付部１２は、特定した特徴部分をユーザに向けて通知し、特定した特徴部分の長さを特定するユーザ入力を受付ける。 The user input reception unit 12 specifies a feature portion used for narrowing down the vehicle name based on the direction of the target vehicle in the image specified by the specification unit 14, the parameter information in FIG. 5 and the feature portion information for each direction in FIG. . Then, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input that specifies the length of the specified feature portion.
　図１３のＵＩ画面の場合、向きの欄で指定された値（向き）に応じて、その下の入力項目が変化し、指定された値（向き）に対応したものとなる。ユーザ入力受付部１２は、指定された値（向き）に対応して所定の入力項目を表示させることで、画像における対象車の向きに応じた複数の特徴部分をユーザに通知している。 In the case of the UI screen shown in FIG. 13, the input item below changes according to the value (orientation) designated in the orientation column, and corresponds to the designated value (orientation). The user input receiving unit 12 displays a predetermined input item corresponding to the designated value (orientation), thereby notifying the user of a plurality of characteristic portions corresponding to the orientation of the target vehicle in the image.
　図１３の例の場合、向きの欄で「真横」が指定されている。このため、ユーザ入力受付部１２は、その下の欄に、向きが「真横」の際に車名の絞込に用いられる特徴部分（例：ホイルベース、車高、全長等）の長さの入力項目を表示している。当該向きの際に絞込に利用しない特徴部分は、非表示とすることができる。 In the case of the example in FIG. 13, “straight side” is designated in the direction column. For this reason, the user input receiving unit 12 inputs the length of the characteristic part (eg, wheel base, vehicle height, total length, etc.) used for narrowing down the car name when the direction is “straight side” in the column below it. Items are displayed. Features that are not used for narrowing down in the direction can be hidden.
　当該状態から、ユーザが、向きを例えば「真正面（前面）」に変更すると、ユーザ入力受付部１２は、それに応じて、その下の欄の入力項目を、向きが「真正面（前面）」の際に車名の絞込に用いられる特徴部分（例：車幅、ヘッドライト間隔等）の長さの入力項目に変化させることができる。 When the user changes the orientation to, for example, “straight front (front)” from this state, the user input receiving unit 12 changes the input item in the lower column accordingly when the orientation is “straight front (front)”. It is possible to change to an input item of the length of a characteristic part (eg, vehicle width, headlight interval, etc.) used for narrowing down the vehicle name.
　図１２に戻り、絞込部１３は、特定部１４が特定した向きに応じた複数の特徴部分の長さの比率に基づき、対象車の車名を絞り込む。絞込部１３のその他の構成は、第１の実施形態と同様である。 Returning to FIG. 12, the narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions according to the direction specified by the specifying unit 14. The other structure of the narrowing-down part 13 is the same as that of 1st Embodiment.
　次に、図１５のフローチャートに基づき、車名絞込装置１０の処理の流れの一例を説明する。 Next, an example of the processing flow of the vehicle name narrowing device 10 will be described based on the flowchart of FIG.
　まず、表示制御部１１が、車名絞込処理の対象車が写った画像を表示させる（Ｓ３０）。当該処理は、図７を用いて説明したＳ１０と同様である。 First, the display control unit 11 displays an image in which the target vehicle for the vehicle name narrowing process is shown (S30). This process is the same as S10 described with reference to FIG.
　次に、特定部１４が、画像における対象車の向きを特定する（Ｓ３１）。当該処理の詳細は、上述の通りであるので、ここでの説明は省略する。 Next, the specifying unit 14 specifies the direction of the target vehicle in the image (S31). Since the details of the processing are as described above, description thereof is omitted here.
　その後、ユーザ入力受付部１２は、特定部１４が特定した画像における対象車の向き、図５のパラメータ情報及び図１４の向き毎特徴部分情報に基づき、車名の絞込に用いられる特徴部分を特定する（Ｓ３２）。その後、ユーザ入力受付部１２は、特定した特徴部分をユーザに通知し、通知した複数の特徴部分各々の長さを特定するユーザ入力を受付ける（Ｓ３３）。 After that, the user input receiving unit 12 selects feature parts used for narrowing down vehicle names based on the direction of the target vehicle in the image specified by the specifying unit 14, the parameter information in FIG. 5, and the feature part information for each direction in FIG. Specify (S32). Thereafter, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input specifying the length of each of the notified feature portions (S33).
　その後、絞込部１３は、特定部１４が特定した向きに応じた複数の特徴部分の長さの比率に基づき、対象車の車名を絞り込む（Ｓ３４）。当該処理は、図７を用いて説明したＳ１２と同様である。 Thereafter, the narrowing-down unit 13 narrows down the vehicle name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions according to the direction specified by the specifying unit 14 (S34). This process is the same as S12 described with reference to FIG.
　次に、本実施形態の作用効果について説明する。
　画像における対象車の向きによっては、特徴部分の長さの比率が、実際の比率から乖離する場合がある。例えば、画像における対象車の向きが真横である場合、画像における車高とホイールベースとの比率は、実際の比率と同等な結果となる。しかし、画像における対象車の向きが、例えばななめ（前面側）である場合、画像における車高とホイールベースとの比率は、実際の比率から乖離し得る。このため、画像における対象車の向きに応じた適切な特徴部分を用い、車名の絞込を行わなければ、絞込の精度が悪くなる。 Next, the effect of this embodiment is demonstrated.
Depending on the orientation of the target vehicle in the image, the ratio of the lengths of the characteristic portions may deviate from the actual ratio. For example, when the direction of the target vehicle in the image is just beside, the ratio between the vehicle height and the wheel base in the image is the same as the actual ratio. However, when the direction of the target vehicle in the image is, for example, licked (front side), the ratio between the vehicle height and the wheelbase in the image can deviate from the actual ratio. For this reason, unless an appropriate feature portion corresponding to the direction of the target vehicle in the image is used and the vehicle name is not narrowed down, the narrowing down accuracy is deteriorated.
　本実施形態の車名絞込装置１０は、画像における対象車の向きに応じた適切な特徴部分の長さの比率に基づき、車名の絞込を行うことができる。このため、絞込の精度が高くなる。 The vehicle name narrowing device 10 of the present embodiment can narrow down the vehicle names based on the ratio of the lengths of the appropriate characteristic portions according to the direction of the target vehicle in the image. For this reason, the precision of narrowing becomes high.
　また、画像における対象車の向きによっては、画像に写らない特徴部分が存在し得る。例えば、画像における対象車の向きが真正面（前面）である場合、ホイールベース部分は画像に写らない。それにも関わらず、画像に写らない特徴部分の長さを特定するユーザ入力を受付けるように構成していると、その案内を見たユーザが混乱してしまう。例えば、図３に示すＵＩ画面において、ユーザ入力受付エリア３に、さらに、ヘッドライト間隔の長さを特定する入力欄が存在する場合、ユーザは、対象車表示エリア１に写る画像上でどのようにヘッドライト間隔の始点及び終点を指定したらよいか把握できず、混乱してしまう。 Also, depending on the orientation of the target vehicle in the image, there may be a feature portion that is not shown in the image. For example, when the direction of the target vehicle in the image is directly in front (front surface), the wheelbase portion is not captured in the image. Nevertheless, if it is configured to accept a user input specifying the length of a feature portion that is not shown in the image, the user who sees the guidance will be confused. For example, in the UI screen shown in FIG. 3, when there is an input field for specifying the length of the headlight interval in the user input reception area 3, how is the user displayed on the image displayed in the target vehicle display area 1? It is confusing because it is impossible to grasp whether the start point and end point of the headlight interval should be specified.
　本実施形態の車名絞込装置１０は、画像における対象者車の向きに応じた複数の特徴部分（その向きの時に絞込に用いられる特徴部分）をユーザに通知し、通知した複数の特徴部分各々の長さを特定するユーザ入力を受付けることができる。このため、画像に写らない特徴部分の長さを特定するユーザ入力を受付ける案内が表示される等の不都合を回避できる。 The vehicle name narrowing device 10 according to the present embodiment notifies the user of a plurality of feature portions (feature portions used for narrowing down in the direction) according to the direction of the subject vehicle in the image, and the plurality of features thus notified. User input specifying the length of each portion can be accepted. For this reason, it is possible to avoid inconveniences such as displaying a guide for accepting a user input specifying the length of a feature portion not shown in the image.
　例えば、本実施形態の車名絞込装置１０は、画像における対象車の向きが「真横」である場合、特徴部分として、少なくとも車高と、全長と、ホイールベースとを含んでもよい。この場合、図１１を用いて第１の実施形態で説明したように、十分な絞込の精度を実現できる。 For example, the vehicle name narrowing device 10 of the present embodiment may include at least the vehicle height, the total length, and the wheel base as characteristic portions when the direction of the target vehicle in the image is “straight side”. In this case, as described in the first embodiment with reference to FIG. 11, sufficient narrowing accuracy can be realized.
　また、画像における対象車の向きが「真正面（前面）」である場合、特徴部分として、少なくとも車幅、ヘッドライト間隔又はトレッド（左右の車輪の中心間距離）と、車高とを含んでもよい。また、画像における対象車の向きが「真正面（背面）」である場合、特徴部分として、少なくとも車幅又はトレッド（左右の車輪の中心間距離）と、車高とを含んでもよい。 Further, when the direction of the target vehicle in the image is “directly in front (front)”, the characteristic portion may include at least the vehicle width, the headlight interval, or the tread (distance between the centers of the left and right wheels) and the vehicle height. . Further, when the direction of the target vehicle in the image is “directly in front (back)”, at least the vehicle width or tread (distance between the centers of the left and right wheels) and the vehicle height may be included as the characteristic portions.
＜第３の実施形態＞
　まず、本実施形態の車名絞込装置１０の概要を説明する。本実施形態の車名絞込装置１０は、表示制御部１１が表示させる画像に写っている対象車のボディータイプを特定し、そのボディータイプに応じた特徴部分の長さを特定するユーザ入力を受付ける点で、第１及び第２の実施形態の車名絞込装置１０と異なる。 <Third Embodiment>
First, the outline | summary of the vehicle name narrowing-down apparatus 10 of this embodiment is demonstrated. The vehicle name narrowing device 10 according to the present embodiment specifies the body type of the target vehicle shown in the image displayed by the display control unit 11 and performs user input for specifying the length of the characteristic portion according to the body type. It differs from the vehicle name narrowing-down apparatus 10 of 1st and 2nd embodiment by the point received.
　本実施形態では、ボディータイプ毎に、車名の絞込に用いる特徴部分が予め定められている。 In this embodiment, a characteristic part used for narrowing down the vehicle name is predetermined for each body type.
　「対象車が写る画像の画質が悪い」、「車名を絞り込むユーザの車の知識が乏しい」等の理由により、ユーザが画像に写る対象車の車名を特定するのが困難な場合であっても、ユーザがボディータイプを特定することは可能な場合がある。そこで、本実施形態の車名絞込装置１０は、車名の絞込を行う前に、ボディータイプを特定する。 This is a case where it is difficult for the user to specify the name of the target vehicle in the image due to reasons such as “the image quality of the target vehicle is poor” or “the user's knowledge of the vehicle to narrow down the vehicle name is poor”. However, it may be possible for the user to specify the body type. Therefore, the vehicle name narrowing device 10 of this embodiment identifies the body type before narrowing down the vehicle name.
　これにより、車名の絞込に用いる辞書データを、当該ボディータイプに分類される車名のものに絞り込むことができる。そして、絞り込んだ車名の中で、図１１に示す縦軸の値が十分にばらつく特徴部分を、車名の絞込に用いることができる。結果、車名の絞込の精度が向上する。 This makes it possible to narrow down the dictionary data used for narrowing down vehicle names to those of vehicle names classified into the body type. And the characteristic part in which the value of the vertical axis | shaft shown in FIG. 11 fully varies among the narrowed down vehicle names can be used for narrowing down the vehicle names. As a result, the accuracy of narrowing down vehicle names is improved.
　以下、本実施形態の車名絞込装置の構成について詳細に説明する。図１６に、本実施形態の車名絞込装置１０の機能ブロック図の一例を示す。図示するように、車名絞込装置１０は、表示制御部１１と、ユーザ入力受付部１２と、絞込部１３と、特定部１４とを有する。表示制御部１１の構成は、第１及び第２の実施形態と同様である。 Hereinafter, the configuration of the vehicle name narrowing device of the present embodiment will be described in detail. In FIG. 16, an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment is shown. As illustrated, the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a specifying unit 14. The configuration of the display control unit 11 is the same as in the first and second embodiments.
　特定部１４は、対象車のボディータイプを特定する。ボディータイプは、例えば、軽自動車、セダン、ステーションワゴン、ミニバン等が例示される。当然、ここでの例示に限定されない。 The identifying unit 14 identifies the body type of the target vehicle. Examples of the body type include a light vehicle, a sedan, a station wagon, and a minivan. Naturally, it is not limited to the illustration here.
　特定部１４は、ユーザ入力に基づき対象車のボディータイプを特定することができる。 The identifying unit 14 can identify the body type of the target vehicle based on the user input.
　例えば、図１７に示すＵＩ画面のように、対象車表示エリア１に表示されている対象車のボディータイプを指定する入力欄が設けられてもよい。図の例の場合、ユーザ入力受付エリア３に、プルダウンメニューで対象車のボディータイプを指定する入力欄が設けられている。例えば、ユーザ入力受付部１２は、当該プルダウンメニューから、対象車のボディータイプを指定するユーザ入力を受付けてもよい。そして、特定部１４は、ユーザ入力で指定されたボディータイプを、対象車のボディータイプとして特定してもよい。 For example, like the UI screen shown in FIG. 17, an input field for designating the body type of the target vehicle displayed in the target vehicle display area 1 may be provided. In the case of the example in the figure, the user input reception area 3 is provided with an input field for designating the body type of the target vehicle from the pull-down menu. For example, the user input receiving unit 12 may receive a user input specifying the body type of the target vehicle from the pull-down menu. Then, the specifying unit 14 may specify the body type specified by the user input as the body type of the target vehicle.
　図１６に戻り、ユーザ入力受付部１２は、特定部１４が特定したボディータイプに応じた複数の特徴部分をユーザに通知し、通知した複数の特徴部分各々の長さを特定するユーザ入力を受付ける。すなわち、ユーザ入力受付部１２は、対象車のボディータイプに応じて、ユーザ入力を受付ける特徴部分を調整する。 Returning to FIG. 16, the user input receiving unit 12 notifies the user of a plurality of feature portions according to the body type specified by the specifying unit 14 and receives a user input specifying the length of each of the notified plurality of feature portions. . That is, the user input receiving unit 12 adjusts the characteristic portion that receives the user input according to the body type of the target vehicle.
　例えば、ユーザ入力受付部１２は、図１８に示すような、ボディータイプ毎特徴部分情報を保持しておいてもよい。図示するボディータイプ毎特徴部分情報は、対象車のボディータイプ（ボディータイプの欄）と、各ボディータイプの際に車名の絞込に用いる特徴部分（パラメータＩＤの欄）とを対応付けている。 For example, the user input receiving unit 12 may hold feature part information for each body type as shown in FIG. The characteristic part information for each body type shown in the figure associates the body type (body type field) of the target vehicle with the characteristic part (parameter ID field) used for narrowing down the vehicle name for each body type. .
　図５のパラメータ情報と、図１８のボディータイプ毎特徴部分情報とによれば、対象車が各ボディータイプの場合に車名の絞込に用いられる特徴部分が分かる。 Referring to the parameter information in FIG. 5 and the feature part information for each body type in FIG. 18, the feature part used for narrowing down the vehicle name when the target vehicle is each body type can be found.
　ユーザ入力受付部１２は、特定部１４が特定した対象車のボディータイプ、図５のパラメータ情報及び図１８のボディータイプ毎特徴部分情報に基づき、車名の絞込に用いられる特徴部分を特定する。そして、ユーザ入力受付部１２は、特定した特徴部分をユーザに向けて通知し、通知した特徴部分の長さを特定するユーザ入力を受付ける。 The user input receiving unit 12 specifies a feature part used for narrowing down the vehicle name based on the body type of the target vehicle specified by the specifying unit 14, the parameter information in FIG. 5 and the feature part information for each body type in FIG. . Then, the user input receiving unit 12 notifies the user of the identified feature portion, and receives a user input that specifies the length of the notified feature portion.
　図１７のＵＩ画面の場合、ボディータイプの欄で指定された値（ボディータイプ）に応じて、その下の入力項目が変化し、指定された値（ボディータイプ）に対応したものとなる。ユーザ入力受付部１２は、所定の入力項目を表示させることで、特定部１４が特定したボディータイプに応じた複数の特徴部分をユーザに通知している。 In the case of the UI screen of FIG. 17, the input item below changes according to the value (body type) specified in the body type column, and corresponds to the specified value (body type). The user input receiving unit 12 notifies the user of a plurality of characteristic portions corresponding to the body type specified by the specifying unit 14 by displaying predetermined input items.
　図１７の例の場合、ボディータイプの欄で「ミニバン」が指定されている。このため、ユーザ入力受付部１２は、その下の欄に、ボディータイプが「ミニバン」の際に車名の絞込に用いられる特徴部分の長さの入力項目を表示している。 In the example of FIG. 17, “Minivan” is specified in the body type column. For this reason, the user input reception unit 12 displays an input item of the length of the characteristic part used for narrowing down the vehicle name when the body type is “minivan” in the lower column.
　当該状態から、ユーザが、ボディータイプを例えば「セダン」に変更すると、ユーザ入力受付部１２は、それに応じて、その下の欄の入力項目を、ボディータイプが「セダン」の際に車名の絞込に用いられる特徴部分の長さの入力項目に変化させることができる。 When the user changes the body type to “sedan”, for example, from this state, the user input receiving unit 12 changes the input item in the lower column accordingly when the body type is “sedan”. It can be changed to the input item of the length of the characteristic part used for narrowing down.
　絞込部１３は、特定部１４が特定したボディータイプに応じた複数の特徴部分の長さの比率に基づき、対象車の車名を絞り込む。 The narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions corresponding to the body type specified by the specifying unit 14.
　また、絞込部１３は、車名の絞込に用いる辞書データを、特定部１４が特定したボディータイプに分類される車のデータに絞り込むことができる。すなわち、絞込部１３は、図４及び図６に示す車名毎特徴情報の中の、特定部１４が特定したボディータイプを対応付けられた車名のデータのみを用いて、対象車の車名の絞込を行うことができる。 Further, the narrowing-down unit 13 can narrow down the dictionary data used for narrowing down the vehicle name to the data of the vehicle classified into the body type specified by the specifying unit 14. That is, the narrowing-down unit 13 uses only the vehicle name data associated with the body type specified by the specifying unit 14 in the feature information for each vehicle name shown in FIGS. Name can be narrowed down.
　絞込部１３のその他の構成は、第１の実施形態と同様である。 Other configurations of the narrowing-down unit 13 are the same as those in the first embodiment.
　次に、図１９のフローチャートに基づき、車名絞込装置１０の処理の流れの一例を説明する。 Next, an example of the processing flow of the vehicle name narrowing device 10 will be described based on the flowchart of FIG.
　まず、表示制御部１１が、車名絞込処理の対象車が写った画像を表示させる（Ｓ４０）。当該処理は、図７を用いて説明したＳ１０と同様である。 First, the display control unit 11 displays an image in which the target vehicle for the vehicle name narrowing process is shown (S40). This process is the same as S10 described with reference to FIG.
　次に、特定部１４が、画像における対象車のボディータイプを特定する（Ｓ４１）。当該処理の詳細は、上述の通りであるので、ここでの説明は省略する。 Next, the specifying unit 14 specifies the body type of the target vehicle in the image (S41). Since the details of the processing are as described above, description thereof is omitted here.
　その後、ユーザ入力受付部１２は、特定部１４が特定した対象車のボディータイプ、図５のパラメータ情報及び図１８のボディータイプ毎特徴部分情報に基づき、車名の絞込に用いられる特徴部分を特定する（Ｓ４２）。その後、ユーザ入力受付部１２は、特定した特徴部分をユーザに通知し、通知した複数の特徴部分各々の長さを特定するユーザ入力を受付ける（Ｓ４３）。 Thereafter, the user input receiving unit 12 selects feature parts used for narrowing down vehicle names based on the body type of the target vehicle specified by the specifying unit 14, the parameter information in FIG. 5, and the feature part information for each body type in FIG. Specify (S42). Thereafter, the user input receiving unit 12 notifies the user of the specified feature portion, and receives a user input specifying the length of each of the notified feature portions (S43).
　その後、絞込部１３は、特定部１４が特定したボディータイプに応じた複数の特徴部分の長さの比率に基づき、対象車の車名を絞り込む（Ｓ４４）。当該処理は、図７を用いて説明したＳ１２と同様である。 Thereafter, the narrowing-down unit 13 narrows down the name of the target vehicle based on the ratio of the lengths of the plurality of characteristic portions corresponding to the body type specified by the specifying unit 14 (S44). This process is the same as S12 described with reference to FIG.
　次に、本実施形態の作用効果について説明する。
　「対象車が写る画像の画質が悪い」、「車名を絞り込むユーザの車の知識が乏しい」等の理由により、ユーザが画像に写る対象車の車名を特定するのが困難な場合であっても、ユーザがボディータイプを特定することは可能な場合がある。そこで、本実施形態の車名絞込装置１０は、車名の絞込を行う前に、ボディータイプを特定する。具体的には、対象車が写る画像を表示させるとともに、その対象車のボディータイプを指定するユーザ入力を受付ける。 Next, the effect of this embodiment is demonstrated.
This is a case where it is difficult for the user to specify the name of the target vehicle in the image due to reasons such as “the image quality of the target vehicle is poor” or “the user's knowledge of the vehicle to narrow down the vehicle name is poor”. However, it may be possible for the user to specify the body type. Therefore, the vehicle name narrowing device 10 of this embodiment identifies the body type before narrowing down the vehicle name. Specifically, an image showing the target vehicle is displayed and a user input specifying the body type of the target vehicle is accepted.
　このように車名の絞込の前にボディータイプを絞り込むことで、車名の絞込に用いる辞書データを、当該ボディータイプに分類される車のデータに絞り込むことができる。このように辞書データを減らすことで、図１１に示す縦軸の値が十分にばらつく特徴部分を選択しやすくなる。そして、絞り込んだ辞書データに適した特徴部分を用いて車名の絞込を行うことで、車名の絞込の精度が向上する。 こ の By narrowing down the body type before narrowing down the car name in this way, the dictionary data used for narrowing down the car name can be narrowed down to car data classified into the body type. By reducing the dictionary data in this way, it becomes easier to select a feature portion in which the values on the vertical axis shown in FIG. 11 vary sufficiently. And, by narrowing down the car name using the characteristic part suitable for the narrowed-down dictionary data, the precision of narrowing down the car name is improved.
＜第４の実施形態＞
　まず、本実施形態の車名絞込装置１０の概要を説明する。本実施形態の車名絞込装置１０は、絞込部１３が絞り込んだ車名を表示させるとともに、その名称の車の画像を対象車の画像と並べて表示させる点で、第１乃至第３の実施形態の車名絞込装置１０と異なる。 <Fourth Embodiment>
First, the outline | summary of the vehicle name narrowing-down apparatus 10 of this embodiment is demonstrated. The vehicle name narrowing-down device 10 of the present embodiment displays the vehicle name narrowed down by the narrowing-down unit 13 and displays the vehicle image of that name side by side with the image of the target vehicle. Different from the vehicle name narrowing-down device 10 of the embodiment.
　本実施形態の車名絞込装置１０によれば、ユーザは、対象車の画像と、絞り込まれた車名に該当する車の画像とを並べて表示させ、それらを見比べることで、絞り込まれた車名に該当する車と対象車とが同一の車名であるか否かを判定することができる。 According to the vehicle name narrowing device 10 of the present embodiment, the user displays the image of the target vehicle and the image of the vehicle corresponding to the narrowed vehicle name side by side, and compares them so that the narrowed vehicles are displayed. It can be determined whether the vehicle corresponding to the name and the target vehicle have the same vehicle name.
　以下、本実施形態の車名絞込装置の構成について詳細に説明する。図２０に、本実施形態の車名絞込装置１０の機能ブロック図の一例を示す。図示するように、車名絞込装置１０は、表示制御部１１と、ユーザ入力受付部１２と、絞込部１３と、結果出力部１５とを有する。なお、車名絞込装置１０は、さらに、特定部１４を有してもよい。表示制御部１１、ユーザ入力受付部１２、絞込部１３及び特定部１４の構成は、第１乃至第３の実施形態と同様である。 Hereinafter, the configuration of the vehicle name narrowing device of the present embodiment will be described in detail. In FIG. 20, an example of the functional block diagram of the vehicle name narrowing-down apparatus 10 of this embodiment is shown. As shown in the figure, the vehicle name narrowing device 10 includes a display control unit 11, a user input receiving unit 12, a narrowing unit 13, and a result output unit 15. Note that the vehicle name narrowing device 10 may further include a specifying unit 14. The configurations of the display control unit 11, the user input receiving unit 12, the narrowing down unit 13, and the specifying unit 14 are the same as those in the first to third embodiments.
　結果出力部１５は、絞込部１３が絞り込んだ車名である絞込車名を出力するとともに、絞込車名各々に該当する車の画像を対象車の画像と並べて表示させる。 The result output unit 15 outputs the narrowed-down vehicle name that is the vehicle name narrowed down by the narrowing-down unit 13 and displays the image of the car corresponding to each narrowed-down car name along with the image of the target vehicle.
　結果出力部１５は、予め、複数の車名各々の画像ファイルを保持している。そして、結果出力部１５は、当該画像ファイルを用いて、絞込車名に該当する車の画像表示を実現する。 The result output unit 15 holds an image file for each of a plurality of vehicle names in advance. And the result output part 15 implement | achieves the image display of the vehicle applicable to a narrowed-down vehicle name using the said image file.
　例えば、図３のＵＩ画面に示すように、結果表示エリア２に絞込車名が一覧表示される。そして、その中の１つを選択するユーザ入力がなされると、結果出力部１５は、選択された絞込車名に該当する車の画像を結果表示エリア２に表示してもよい。この場合、対象車の画像と絞込車名に該当する車の画像は上下に並べて表示されることとなる。なお、これらの画像を左右に並べて表示してもよいし、その他で表示形態としてもよい。 For example, as shown in the UI screen of FIG. 3, a list of narrowed-down vehicle names is displayed in the result display area 2. And if the user input which selects one of them is made, the result output part 15 may display the image of the vehicle applicable to the selected narrowed-down vehicle name in the result display area 2. FIG. In this case, the image of the target vehicle and the image of the vehicle corresponding to the narrowed-down vehicle name are displayed side by side. Note that these images may be displayed side by side on the left and right, or otherwise in a display form.
　変形例として、結果出力部１５は、表示制御部１１が表示させる画像における対象車の向きと同じ向きで、絞込車名に該当する車の画像を表示してもよい。すなわち、結果出力部１５は、画像における対象車の向きが真横である場合、絞込車名に該当する車の向きが真横となった画像を表示してもよい。このようにすれば、ユーザは、２つの画像をより比較しやすくなる。 As a modification, the result output unit 15 may display an image of a car corresponding to the narrowed down vehicle name in the same direction as the direction of the target vehicle in the image displayed by the display control unit 11. That is, the result output unit 15 may display an image in which the direction of the vehicle corresponding to the narrowed-down vehicle name is right side when the direction of the target vehicle in the image is right side. In this way, the user can more easily compare the two images.
　例えば、結果出力部１５は、複数の車名各々に該当する車の画像ファイルとして、３６０°回転可能な立体画像のファイルを保持しておいてもよい。そして、結果出力部１５は、当該画像ファイルを用いて、所定の向きでの画像表示を実現してもよい。表示制御部１１が表示させる画像における対象車の向きを特定する手段は、特定部１４と同様の手段を採用することができる。 For example, the result output unit 15 may hold a stereoscopic image file that can rotate 360 ° as a vehicle image file corresponding to each of a plurality of vehicle names. And the result output part 15 may implement | achieve the image display in a predetermined direction using the said image file. As the means for specifying the direction of the target vehicle in the image displayed by the display control unit 11, the same means as the specifying unit 14 can be employed.
　次に、本実施形態の作用効果について説明する。
　本実施形態の車名絞込装置１０によれば、絞込部１３が絞り込んだ車名に該当する車の画像と、対象車の画像とを並べて表示させることができる。また、本実施形態の車名絞込装置１０によれば、絞込部１３が絞り込んだ車名に該当する車の画像と、対象車の画像とを、車の向きを揃えて表示させることができる。 Next, the effect of this embodiment is demonstrated.
According to the vehicle name narrowing-down device 10 of the present embodiment, the vehicle image corresponding to the vehicle name narrowed down by the narrowing-down unit 13 and the image of the target vehicle can be displayed side by side. Moreover, according to the vehicle name narrowing-down device 10 of the present embodiment, the vehicle image corresponding to the vehicle name narrowed down by the narrowing-down unit 13 and the image of the target vehicle can be displayed with the vehicle orientation aligned. it can.
　このような本実施形態の車名絞込装置１０によれば、ユーザは、複数の絞込車名各々に該当する車と、対象車とを画像上で見比べることで、絞込車名の中から対象車の車名をさらに絞り込んだり、特定したりすることができる。 According to such a vehicle name narrowing device 10 of the present embodiment, the user compares the vehicle corresponding to each of the narrowed vehicle names and the target vehicle on the image, so that The name of the target vehicle can be further narrowed down or specified.
＜実施例＞
　ランダムに１００種類の車名を特定した。そして、カタログ情報を用いて、当該１００種類の車名の車名毎特徴情報（図６参照）を作成した。特徴部分は、図２２に示すように、ホイールベース、全長、車高とした。 <Example>
100 types of vehicle names were identified at random. Then, using the catalog information, feature information for each vehicle name (see FIG. 6) of the 100 types of vehicle names was created. As shown in FIG. 22, the characteristic portions are a wheel base, a total length, and a vehicle height.
　その後、１００種類の車名の中からランダムに１つを抽出し、それを対象車とした。そして、対象車の画像を真横から撮影した画像を用い、第１の実施形態の車名絞込装置１０を用いて車名の絞込処理を所定回数行った。毎回、特徴部分の長さを特定するユーザ入力を行った。絞込部１３は、第１の実施形態で説明した式１乃至式３を用いて車名の絞込を行った。 After that, one of 100 car names was extracted at random and used as the target car. And using the image which image | photographed the image of the object vehicle from the side, the vehicle name narrowing-down process was performed predetermined times using the vehicle name narrowing-down apparatus 10 of 1st Embodiment. Each time a user input was made to identify the length of the feature. The narrowing-down unit 13 narrows down the vehicle names using the formulas 1 to 3 described in the first embodiment.
　そして、各回で、正解車名が絞込車名の中の何位（類似度が小さい方から何番目か）に現れるかを観察した。 Then, at each round, we observed how many times the correct car name appears in the narrowed car name (the number from the lowest similarity).
　図２３乃至図２５に結果を示す。図２３乃至図２５は、各々、異なる車名を対象車としたものである。 The results are shown in FIGS. FIG. 23 to FIG. 25 each have a different vehicle name as a target vehicle.
　図２３乃至図２５より、十分な精度で、正解車名が上位にランクされることが分かる。以上より、本実施形態の車名絞込装置１０によれば、カメラで撮影した車の車名を十分な精度で絞り込めることが分かる。 23 to 25, it can be seen that the correct vehicle names are ranked higher with sufficient accuracy. As described above, according to the vehicle name narrowing-down device 10 of the present embodiment, it can be seen that the vehicle names of the cars photographed by the camera can be narrowed down with sufficient accuracy.
＜変形例＞
　車名絞込装置１０は、対象車が写る画像に対し、輪郭（エッジ）を強調する、画質を鮮明化する等の画像処理を行ってもよい。そして、表示制御部１１は、当該画像処理後の画像を表示し、ユーザ入力受付部１２は、当該画像上で、特徴部分の長さを特定するユーザ入力を受付けてもよい。このようにすれば、画像が鮮明になり、ユーザによる入力誤差（例：始点及び終点を指定する入力のズレ）を小さくすることができる。結果、車名絞込の精度が向上する。 <Modification>
The vehicle name narrowing device 10 may perform image processing such as emphasizing the outline (edge) or sharpening the image quality on the image showing the target vehicle. Then, the display control unit 11 may display the image after the image processing, and the user input reception unit 12 may receive a user input that specifies the length of the feature portion on the image. In this way, the image becomes clear and the input error by the user (eg, an input shift specifying the start point and the end point) can be reduced. As a result, the accuracy of narrowing down the vehicle name is improved.
　その他、車名絞込装置１０は、画像解析により、タイヤの中心点、ヘッドライドの中心点、車の先端、車の後端等を判定し、判定結果を表示制御部１１が表示させる画像上に重ねて表示（例：その位置に所定のマークを表示等）してもよい。かかる場合、ユーザは、このような補助情報を利用して、特徴部分の長さを特定する入力を行うことができるので、ユーザによる入力誤差（例：始点及び終点を指定する入力のズレ）を小さくすることができる。結果、車名絞込の精度が向上する。 In addition, the vehicle name narrowing device 10 determines the center point of the tire, the center point of the head ride, the front end of the vehicle, the rear end of the vehicle, and the like by image analysis, and the display control unit 11 displays the determination result. May be displayed in a superimposed manner (for example, a predetermined mark is displayed at the position). In such a case, the user can use such auxiliary information to perform an input for specifying the length of the feature portion. Therefore, an input error by the user (eg, an input shift specifying the start point and the end point) can be reduced. Can be small. As a result, the accuracy of narrowing down the vehicle name is improved.
　その他、車名絞込装置１０は、車名毎特徴情報として、各車名の特徴的な外観部分（例：エンブレム、テールランプ、グリル等）の特徴量を辞書データとして保持しておき、当該特徴量を用いた画像認識処理をさらに組み合わせて、車名の絞込を行ってもよい。例えば、車名絞込装置１０は、表示制御部１１が表示させる画像上で、所定のパーツ各々の表示エリアを指定するユーザ入力を受付けてもよい。そして、ユーザ入力で指定されたエリアに写る画像と、上記辞書データとを用いた照合により、車名の絞込を行ってもよい。このように、複数の処理を組み合わせることで、車名絞込の精度が向上する。 In addition, the vehicle name narrowing device 10 stores, as dictionary data, feature quantities of characteristic external portions (eg, emblems, tail lamps, grills, etc.) of each vehicle name as feature information for each vehicle name. The vehicle name may be narrowed down by further combining image recognition processing using quantities. For example, the vehicle name narrowing device 10 may accept a user input that designates a display area of each predetermined part on the image displayed by the display control unit 11. And you may narrow down a vehicle name by collation using the image reflected in the area designated by user input, and the above-mentioned dictionary data. Thus, the accuracy of narrowing down the vehicle name is improved by combining a plurality of processes.
　その他、車名絞込装置１０は、対象車の車名の絞込の前に、対象車のメーカー名を特定する手段を備えてもよい。例えば、表示制御部１１が対象車の画像を表示後、対象車のメーカー名を指定するユーザ入力を受付けてもよいし、画像に写るエンブレムの画像解析により、メーカー名を特定してもよい。そして、メーカー名毎に、車名の絞込に用いる特徴部分が予め定められていてもよい。すなわち、絞込部１３は、特定されたメーカー名に応じた特徴部分の長さの比率に基づき、対象車の車名を絞り込むことができる。また、絞込部１３は、辞書データとして、特定されたメーカーの車のデータのみを用いて、対象車の車名を絞り込むことができる。 In addition, the vehicle name narrowing device 10 may include means for specifying the manufacturer name of the target vehicle before narrowing down the vehicle name of the target vehicle. For example, after the display control unit 11 displays the image of the target vehicle, a user input specifying the manufacturer name of the target vehicle may be accepted, or the manufacturer name may be specified by image analysis of an emblem appearing in the image. And the characteristic part used for narrowing down a car name may be predetermined for every maker name. That is, the narrowing-down unit 13 can narrow down the vehicle name of the target vehicle based on the ratio of the lengths of the characteristic portions according to the specified manufacturer name. Moreover, the narrowing-down part 13 can narrow down the vehicle name of an object vehicle only using the data of the specified manufacturer's car as dictionary data.
　このように車名の絞込の前に対象車のメーカー名を特定することで、車名の絞込に用いる辞書データを、当該メーカーの車のデータに絞り込むことができる。このように辞書データを減らすことで、図１１に示す縦軸の値が十分にばらつく特徴部分を選択しやすくなる。そして、絞り込んだ辞書データに適した特徴部分を用いて車名の絞込を行うことで、車名の絞込の精度が向上する。 Thus, by specifying the manufacturer name of the target vehicle before narrowing down the car name, the dictionary data used for narrowing down the car name can be narrowed down to the car data of that manufacturer. By reducing the dictionary data in this way, it becomes easier to select a feature portion in which the values on the vertical axis shown in FIG. 11 vary sufficiently. And, by narrowing down the car name using the characteristic part suitable for the narrowed-down dictionary data, the precision of narrowing down the car name is improved.
　対象車の画像における向きを特定することによる絞込精度の向上、ボディータイプの特定による絞込制度の向上、及び、メーカー名の特定による絞込精度の向上を任意の組み合わせで組み合わせることで、絞込精度がより向上する。 By combining any combination of refinement accuracy by specifying the orientation in the image of the target vehicle, improvement of the refinement system by specifying the body type, and improvement of refinement accuracy by specifying the manufacturer name, More accurate.
　以下、参考形態の例を付記する。
１．　車名絞込処理の対象車が写った画像を表示させる表示制御手段と、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段と、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段と、
を有する車名絞込装置。
２．　１に記載の車名絞込装置において、
　前記画像における前記対象車の向きを特定する特定手段をさらに有し、
　前記向き毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込装置。
３．　２に記載の車名絞込装置において、
　前記絞込手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込装置。
４．　１から３のいずれかに記載の車名絞込装置において、
　前記対象車のボディータイプを特定する特定手段をさらに有し、
　前記ボディータイプ毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込装置。
５．　４に記載の車名絞込装置において、
　前記絞込手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込装置。
６．　１から５のいずれかに記載の車名絞込装置において、
　前記対象車のボディータイプを特定する特定手段をさらに有し、
　前記絞込手段は、前記辞書データを、前記特定手段が特定した前記ボディータイプに分類される車のデータに絞り込んで、前記対象車の車名を絞り込む車名絞込装置。
７．　１から６のいずれかに記載の車名絞込装置において、
　前記絞込手段が絞り込んだ車名である絞込車名を出力するとともに、前記絞込車名に該当する車の画像を前記対象車の画像と並べて表示させる結果出力手段をさらに有する車名絞込装置。
８．　７に記載の車名絞込装置において、
　前記結果出力手段は、前記画像における前記対象車の向きと同じ向きで、前記絞込車名に該当する車の画像を表示させる車名絞込装置。
９．　コンピュータが、
　車名絞込処理の対象車が写った画像を表示させる表示制御工程と、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付工程と、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込工程と、
を実行する車名絞込方法。
９－２．　９に記載の車名絞込方法において、
　前記コンピュータが、前記画像における前記対象車の向きを特定する特定工程をさらに実行し、
　前記向き毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付工程では、前記特定工程で特定した前記向きに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込方法。
９－３．　９－２に記載の車名絞込方法において、
　前記絞込工程では、前記特定工程で特定した前記向きに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込方法。
９－４．　９から９－３のいずれかに記載の車名絞込方法において、
　前記コンピュータが、前記対象車のボディータイプを特定する特定工程をさらに実行し、
　前記ボディータイプ毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付工程では、前記特定工程で特定した前記ボディータイプに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込方法。
９－５．　９－４に記載の車名絞込方法において、
　前記絞込工程では、前記特定工程で特定した前記ボディータイプに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込方法。
９－６．　９から９－５のいずれかに記載の車名絞込方法において、
　前記コンピュータが、前記対象車のボディータイプを特定する特定工程をさらに実行し、
　前記絞込工程では、前記辞書データを、前記特定工程で特定した前記ボディータイプに分類される車のデータに絞り込んで、前記対象車の車名を絞り込む車名絞込方法。
９－７．　９から９－６のいずれかに記載の車名絞込方法において、
　前記コンピュータが、前記絞込工程で絞り込んだ車名である絞込車名を出力するとともに、前記絞込車名に該当する車の画像を前記対象車の画像と並べて表示させる結果出力工程をさらに実行する車名絞込方法。
９－８．　９－７に記載の車名絞込方法において、
　前記結果出力工程では、前記画像における前記対象車の向きと同じ向きで、前記絞込車名に該当する車の画像を表示させる車名絞込方法。
１０．　コンピュータを、
　車名絞込処理の対象車が写った画像を表示させる表示処理実行手段、
　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段、
　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段、
として機能させるためのプログラム。
１０－２．　１０に記載のプログラムにおいて、
　前記コンピュータを、前記画像における前記対象車の向きを特定する特定手段としてさらに機能させ、
　前記向き毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付けるプログラム。
１０－３．　１０－２に記載のプログラムにおいて、
　前記絞込手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込むプログラム。
１０－４．　１０から１０－３のいずれかに記載のプログラムにおいて、
　前記コンピュータを、前記対象車のボディータイプを特定する特定手段としてさらに機能させ、
　前記ボディータイプ毎に車名の絞込に用いる前記特徴部分が予め定められており、
　前記ユーザ入力受付手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付けるプログラム。
１０－５．　１０－４に記載のプログラムにおいて、
　前記絞込手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込むプログラム。
１０－６．　１０から１０－５のいずれかに記載のプログラムにおいて、
　前記コンピュータを、前記対象車のボディータイプを特定する特定手段としてさらに機能させ、
　前記絞込手段は、前記辞書データを、前記特定手段が特定した前記ボディータイプに分類される車のデータに絞り込んで、前記対象車の車名を絞り込むプログラム。
１０－７．　１０から１０－６のいずれかに記載のプログラムにおいて、
　前記コンピュータを、前記絞込手段が絞り込んだ車名である絞込車名を出力するとともに、前記絞込車名に該当する車の画像を前記対象車の画像と並べて表示させる結果出力手段としてさらに機能させるプログラム。
１０－８．　１０－７に記載のプログラムにおいて、
　前記結果出力手段は、前記画像における前記対象車の向きと同じ向きで、前記絞込車名に該当する車の画像を表示させるプログラム。 Hereinafter, examples of the reference form will be added.
1. Display control means for displaying an image showing a vehicle subject to a car name narrowing process;
User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrowing means to narrow down the car name,
Car name narrowing device having.
2. In the vehicle name narrowing-down device described in 1,
Further comprising specifying means for specifying the direction of the target vehicle in the image;
The characteristic part used for narrowing down the car name for each direction is predetermined,
The user input receiving means notifies the user of the plurality of characteristic portions according to the orientation specified by the specifying means, and receives a user name specifying the length of each of the notified characteristic portions. Device.
3. In the vehicle name narrowing device described in 2,
The narrowing-down device is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the orientation specified by the specifying means.
4). In the vehicle name narrowing device according to any one of 1 to 3,
A specifying means for specifying the body type of the target vehicle;
The characteristic part used for narrowing down the car name for each body type is predetermined,
The user input receiving means notifies the user of the plurality of characteristic portions according to the body type specified by the specifying means, and receives a user input specifying the length of each of the notified characteristic portions. Narrowing device.
5). In the vehicle name narrowing-down device described in 4,
The narrowing-down unit is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the body type specified by the specifying unit.
6). In the vehicle name narrowing device according to any one of 1 to 5,
A specifying means for specifying the body type of the target vehicle;
The narrowing-down unit narrows down the dictionary data to data of vehicles classified into the body type specified by the specifying unit, and narrows down the vehicle name of the target vehicle.
7). In the vehicle name narrowing device according to any one of 1 to 6,
The vehicle name narrowing down further includes a result output means for outputting a narrowed down vehicle name that is a narrowed down vehicle name by the narrowing down means and displaying an image of the vehicle corresponding to the narrowed down vehicle name alongside the image of the target vehicle. Device.
8). In the vehicle name narrowing device according to 7,
The result output means is a vehicle name narrowing device that displays an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.
9. Computer
A display control step for displaying an image showing a vehicle subject to a car name narrowing process;
A user input receiving step for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target A narrowing process to narrow down the car name,
Car name refinement method to perform.
9-2. In the vehicle name narrowing-down method described in 9,
The computer further executes a specifying step of specifying the direction of the target vehicle in the image,
The characteristic part used for narrowing down the car name for each direction is predetermined,
In the user input receiving step, the user is notified of the plurality of feature portions according to the orientation specified in the specifying step, and the vehicle name is narrowed down to receive a user input specifying the length of each of the notified feature portions. Method.
9-3. In the method of narrowing down vehicle names described in 9-2,
In the narrowing-down step, a vehicle name narrowing-down method for narrowing down the names of the target vehicles based on the ratio of the lengths of the plurality of characteristic portions according to the orientation specified in the specifying step.
9-4. In the vehicle name narrowing-down method according to any one of 9 to 9-3,
The computer further executes a specifying step of specifying a body type of the target vehicle,
The characteristic part used for narrowing down the car name for each body type is predetermined,
In the user input receiving step, a vehicle name for notifying the user of the plurality of feature portions according to the body type specified in the specifying step and receiving a user input specifying the length of each of the notified feature portions. Narrowing method.
9-5. In the vehicle name narrowing-down method described in 9-4,
In the narrowing-down step, a vehicle name narrowing-down method for narrowing down the names of the target vehicles based on the ratio of the lengths of the plurality of characteristic portions according to the body type specified in the specifying step.
9-6. In the vehicle name narrowing-down method according to any one of 9 to 9-5,
The computer further executes a specifying step of specifying a body type of the target vehicle,
In the narrowing-down step, the dictionary data is narrowed down to the vehicle data classified into the body type identified in the identifying step, and the vehicle name narrowing-down method for narrowing down the vehicle name of the target vehicle.
9-7. In the method for narrowing down the vehicle name described in any of 9 to 9-6,
A result output step in which the computer outputs a narrowed-down vehicle name, which is a vehicle name narrowed down in the narrowing-down step, and displays a car image corresponding to the narrowed-down vehicle name side by side with an image of the target vehicle. Car name refinement method to be executed.
9-8. In the vehicle name narrowing-down method described in 9-7,
In the result output step, a vehicle name narrowing method for displaying an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.
10. Computer
Display processing execution means for displaying an image showing the target vehicle of the car name narrowing process;
User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrow down means to narrow down the car name,
Program to function as.
10-2. In the program described in 10,
Causing the computer to further function as specifying means for specifying the direction of the target vehicle in the image;
The characteristic part used for narrowing down the car name for each direction is predetermined,
The user input accepting unit is a program for notifying a user of the plurality of feature portions according to the orientation specified by the specifying unit and receiving a user input specifying the length of each of the notified feature portions.
10-3. In the program described in 10-2,
The narrowing-down means is a program for narrowing down the name of the target vehicle based on a ratio of lengths of the plurality of characteristic portions according to the orientation specified by the specifying means.
10-4. In the program according to any one of 10 to 10-3,
Causing the computer to further function as a specifying means for specifying the body type of the target vehicle;
The characteristic part used for narrowing down the car name for each body type is predetermined,
The user input receiving means notifies the user of the plurality of characteristic portions according to the body type specified by the specifying means, and receives a user input specifying the length of each of the notified characteristic portions.
10-5. In the program described in 10-4,
The narrowing-down means is a program for narrowing down the name of the target vehicle based on a ratio of lengths of the plurality of characteristic portions according to the body type specified by the specifying means.
10-6. In the program according to any one of 10 to 10-5,
Causing the computer to further function as a specifying means for specifying the body type of the target vehicle;
The narrowing-down means is a program for narrowing down the name of the target vehicle by narrowing down the dictionary data to data of cars classified into the body type specified by the specifying means.
10-7. In the program according to any one of 10 to 10-6,
The computer further outputs a narrowed-down vehicle name that is the name of the narrowed-down vehicle by the narrowing-down means, and a result output means for displaying an image of the car corresponding to the narrowed-down vehicle name side by side with the image of the target vehicle. A program to function.
10-8. In the program described in 10-7,
The result output means is a program for displaying an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.
　この出願は、２０１５年６月３０日に出願された日本出願特願２０１５－１３１２３５号を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2015-1312235 filed on June 30, 2015, the entire disclosure of which is incorporated herein.

Claims (10)

  1. 　車名絞込処理の対象車が写った画像を表示させる表示制御手段と、
    　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段と、
    　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段と、
    を有する車名絞込装置。     Display control means for displaying an image showing a vehicle subject to a car name narrowing process;
    User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
    Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrowing means to narrow down the car name,
    Car name narrowing device having.
  2. 　請求項１に記載の車名絞込装置において、
    　前記画像における前記対象車の向きを特定する特定手段をさらに有し、
    　前記向き毎に車名の絞込に用いる前記特徴部分が予め定められており、
    　前記ユーザ入力受付手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込装置。     In the vehicle name narrowing-down device according to claim 1,
    Further comprising specifying means for specifying the direction of the target vehicle in the image;
    The characteristic part used for narrowing down the car name for each direction is predetermined,
    The user input receiving means notifies the user of the plurality of characteristic portions according to the orientation specified by the specifying means, and receives a user name specifying the length of each of the notified characteristic portions. Device.
  3. 　請求項２に記載の車名絞込装置において、
    　前記絞込手段は、前記特定手段が特定した前記向きに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込装置。     In the vehicle name narrowing-down device according to claim 2,
    The narrowing-down device is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the orientation specified by the specifying means.
  4. 　請求項１から３のいずれか１項に記載の車名絞込装置において、
    　前記対象車のボディータイプを特定する特定手段をさらに有し、
    　前記ボディータイプ毎に車名の絞込に用いる前記特徴部分が予め定められており、
    　前記ユーザ入力受付手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分をユーザに通知し、通知した前記複数の特徴部分各々の長さを特定するユーザ入力を受付ける車名絞込装置。     In the vehicle name narrowing-down device according to any one of claims 1 to 3,
    A specifying means for specifying the body type of the target vehicle;
    The characteristic part used for narrowing down the car name for each body type is predetermined,
    The user input receiving means notifies the user of the plurality of characteristic portions according to the body type specified by the specifying means, and receives a user input specifying the length of each of the notified characteristic portions. Narrowing device.
  5. 　請求項４に記載の車名絞込装置において、
    　前記絞込手段は、前記特定手段が特定した前記ボディータイプに応じた前記複数の特徴部分の長さの比率に基づき、前記対象車の車名を絞り込む車名絞込装置。     In the vehicle name narrowing-down device according to claim 4,
    The narrowing-down unit is a vehicle name narrowing-down device that narrows down the names of the target vehicles based on a ratio of lengths of the plurality of characteristic portions according to the body type specified by the specifying unit.
  6. 　請求項１から５のいずれか１項に記載の車名絞込装置において、
    　前記対象車のボディータイプを特定する特定手段をさらに有し、
    　前記絞込手段は、前記辞書データを、前記特定手段が特定した前記ボディータイプに分類される車のデータに絞り込んで、前記対象車の車名を絞り込む車名絞込装置。     In the vehicle name narrowing-down device according to any one of claims 1 to 5,
    A specifying means for specifying the body type of the target vehicle;
    The narrowing-down unit narrows down the dictionary data to data of vehicles classified into the body type specified by the specifying unit, and narrows down the vehicle name of the target vehicle.
  7. 　請求項１から６のいずれか１項に記載の車名絞込装置において、
    　前記絞込手段が絞り込んだ車名である絞込車名を出力するとともに、前記絞込車名に該当する車の画像を前記対象車の画像と並べて表示させる結果出力手段をさらに有する車名絞込装置。     In the vehicle name narrowing-down device according to any one of claims 1 to 6,
    The vehicle name narrowing down further includes a result output means for outputting a narrowed down vehicle name that is a narrowed down vehicle name by the narrowing down means and displaying an image of the vehicle corresponding to the narrowed down vehicle name alongside the image of the target vehicle. Device.
  8. 　請求項７に記載の車名絞込装置において、
    　前記結果出力手段は、前記画像における前記対象車の向きと同じ向きで、前記絞込車名に該当する車の画像を表示させる車名絞込装置。     In the vehicle name narrowing-down device according to claim 7,
    The result output means is a vehicle name narrowing device that displays an image of a vehicle corresponding to the narrowed vehicle name in the same direction as the direction of the target vehicle in the image.
  9. 　コンピュータが、
    　車名絞込処理の対象車が写った画像を表示させる表示制御工程と、
    　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付工程と、
    　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込工程と、
    を実行する車名絞込方法。     Computer
    A display control step for displaying an image showing a vehicle subject to a car name narrowing process;
    A user input receiving step for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
    Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target A narrowing process to narrow down the car name,
    Car name refinement method to perform.
  10. 　コンピュータを、
    　車名絞込処理の対象車が写った画像を表示させる表示処理実行手段、
    　前記画像における前記対象車の複数の特徴部分各々の長さを特定するユーザ入力を受付けるユーザ入力受付手段、
    　複数の車各々の前記複数の特徴部分の長さの比率を示す辞書データと、前記ユーザ入力に基づき特定された前記対象車の前記複数の特徴部分の長さの比率と、に基づき、前記対象車の車名を絞り込む絞込手段、
    として機能させるためのプログラム。     Computer
    Display processing execution means for displaying an image showing the target vehicle of the car name narrowing process;
    User input receiving means for receiving a user input specifying the length of each of the plurality of characteristic portions of the target vehicle in the image;
    Based on dictionary data indicating a ratio of lengths of the plurality of characteristic portions of each of a plurality of vehicles, and a ratio of lengths of the plurality of characteristic portions of the target vehicle specified based on the user input, the target Narrow down means to narrow down the car name,
    Program to function as.
PCT/JP2016/052071 2015-06-30 2016-01-26 Vehicle name narrow-down device, vehicle name narrow-down method, and program WO2017002375A1 (en)

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