JP2009014376A - Feature image data change informing apparatus and feature image data change informing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feature image data change informing apparatus for informing that a content of feature image data is changed at the identical point. <P>SOLUTION: In the feature image data change informing apparatus, a map information maintaining means maintains map information, the feature image data corresponding to the map information, information on a date when the feature image data is captured, information on a location corresponding to the feature image data, and feature image data-related information associated with feature image data identification information. A feature image data searching means searches the feature image data corresponding to a vicinity of a route searched by a route searching means. A feature image data content change determining means implements an image analysis process for the feature image data at the identical location among the feature image data searched by the feature image data searching means, and determines whether the content of the feature image data is different. A determination result informing means informs a result determined by the feature image data content change determining means. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for notifying a change in content of feature image data.

  2. Description of the Related Art Conventionally, in a navigation apparatus, there is an apparatus that displays not only route information but also image data obtained by photographing a landscape (hereinafter also referred to as feature image data) on the route when the route is searched (for example, see Patent Document 1). ). The navigation device displays the feature image data corresponding to the traveling position of the mobile object equipped with the navigation device.

JP 2006-178856 A

  However, the navigation device described in Patent Document 1 only displays the feature image data corresponding to the travel position, and does not consider the case where a plurality of feature image data is held at the same point. Therefore, when the user has passed in the past, the user cannot compare the current feature image data with the current feature image data, so the current landscape and the user's memory landscape are different. There is a problem that the user may misrecognize the place.

  Examples of the problems to be solved by the present invention include those described above. An object of the present invention is to provide a feature image data change notification device that notifies a change in the content of feature image data at the same point.

  The invention according to claim 1 is a feature image data change notifying device, a map information holding means for holding map information, and a feature image data holding means for holding feature image data corresponding to the map information. And a feature image data related information holding unit that associates the shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information, and searches for a route. A route search means, a feature image data search means for searching for feature image data corresponding to the periphery of the route using the feature image data related information, and a feature image searched by the feature image data search means Among the data, the feature image data content change determining means for determining whether or not the content image data at the same point has been changed is determined by the feature image data content change determining means. A determination result notifying means for notifying the result, characterized in that it comprises a.

  The invention according to claim 7 is a feature image data change notification method, a map information holding step for holding map information, and a feature image data holding step for holding feature image data corresponding to the map information. A feature image data related information holding step in which the shooting date information of the feature image data, the position information corresponding to the feature image data, and the feature image data identification information are associated, and a route is searched. A route search step, a feature image data search step for searching for feature image data corresponding to the route periphery using the feature image data related information, and a feature image searched by the feature image data search step Of the data, the feature image data content change determination step for determining whether or not the content image data at the same point has been changed is determined by the feature image data content change determination step. A determination result notifying step of notifying the result, characterized in that it comprises a.

  The invention according to claim 8 is a feature image data change notification program executed by an apparatus including a computer, and includes map information holding means for holding map information, and feature image data corresponding to the map information. Feature image data related information associating feature image data holding means for holding, shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information Holding means, route search means for searching for a route, feature image data search means for searching for feature image data corresponding to the periphery of the route using the feature image data related information, and the feature image data Of the feature image data searched by the search means, the feature image data content change determination unit for determining whether or not the content of the feature image data at the same point has been changed. When, characterized in that causes the computer to function as a determination result notifying means, for notifying the result of the feature image data content change determination means determines.

  In a preferred embodiment of the present invention, the feature image data change notification device includes map information holding means for holding map information, feature image data holding means for holding feature image data corresponding to the map information, Feature image data related information holding means for associating shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information, and route search for searching for a route Means for searching for feature image data corresponding to the periphery of the route using the feature image data related information, and the feature image data searched by the feature image data search means. Among them, the feature image data content change determination unit for determining whether or not the content image data at the same point has been changed is determined by the feature image data content change determination unit. Includes a judgment result notification section for notifying the result, the.

  The above feature image data change notification device is specifically a car navigation device or a personal computer, and can be applied to various map display systems. In the feature image data change notification device, the map information holding means holds the map information, holds the feature image data corresponding to the map information, and corresponds to the shooting date information of the feature image data and the feature image data. The feature image data related information in which the position information to be associated with the feature image data identification information is stored. The feature image data identification information is an identifier for identifying the feature image data, storage destination information of a file including the feature image data, or the like.

  Then, the feature image data search means searches for the feature image data corresponding to the periphery of the route searched by the route search means. The feature image data content change determination means performs image analysis processing on the feature image data at the same point among the feature image data searched by the feature image data search means, and the contents of the feature image data are Determine whether they are different. The determination result notifying unit notifies the result determined by the feature image data content change determining unit.

  As described above, the feature image data change notification device determines whether or not the content of the feature image data is the same for the feature image data corresponding to the same position around the route, and notifies the determination result. The user can be notified whether or not the content of the feature image data corresponding to the route periphery has changed. Therefore, the feature image data change notification device performs a content change determination on the feature image data even if the scenery in the route has changed in the same route that the user has previously passed, and the scenery is changed. Therefore, it can be avoided that the user feels uneasy about the change of the scenery.

  In one aspect of the above feature image data change notification device, the feature image data change notification device further includes current position information acquisition means for acquiring current position information, and the feature image data search means corresponds to the current position information on the route. Search for object image data.

  In this case, the feature image data change notification device determines whether or not there has been a content change in the feature image data corresponding to the current position information acquired by the current position information acquisition unit on the route searched by the route search unit. Therefore, if the feature image data change notification device is applied to a navigation device and the navigation device is mounted on a vehicle or the like, the navigation device notifies the user whether or not the scenery around the travel position has been changed. Can do.

  In one aspect of the above feature image data change notification device, it further comprises feature image data display means for displaying the feature image data on the route. In this case, the feature image data change notification device can display the corresponding feature image data on the route.

  In one aspect of the above feature image data change notification device, the feature image data display means displays content change time information of the feature image data. In this case, since the feature image data change notification device displays the change time of the feature image data at the same point, it can notify the user of the change time of the feature image data.

  In one aspect of the above feature image data change notification device, the feature image data related information holds shooting direction information, and the feature image data content change determination means is feature image data at the same point. In addition, it is determined whether to change the contents of the feature image data having the same shooting direction information. In this case, the feature image data change notification device, if there is a plurality of feature image data having the same position information among the feature image data searched by the feature image data search means, The feature image data content change determination means does not perform the content change determination for the feature image data, and the content information is changed as a result of comparing the content of the feature image data with the same position information and different shooting directions. Judgment can be avoided.

  In one aspect of the above feature image data change notification device, the map information includes current map information and past map information, and the route search means includes a current route based on the current map information, Searching for past routes based on past map information, the feature image data search means searches for feature image data around the current route and feature image data around the past route, and When the feature image data content changing means includes feature image data corresponding to a difference between the current route and the past route among the feature image data searched by the feature image data searching device. It is determined that there is a change. Thereby, the feature image data change notification device can notify the user that the feature image data 140 exists in different route portions when the current route information and the past route information are different.

  In another aspect of the present invention, a feature image data change notification method includes a map information holding step of holding map information, a feature image data holding step of holding feature image data corresponding to the map information, A feature image data related information holding step associating the shooting date information of feature image data, position information corresponding to the feature image data, and the feature image data identification information, and a route search step for searching for a route. A feature image data search step for searching for feature image data corresponding to the route periphery using the feature image data related information, and among the feature image data searched by the feature image data search step The feature image data content change determination step for determining whether or not the content image data at the same point has been changed, and the result determined by the feature image data content change determination means It includes a judgment result notification step of knowledge, the.

  Even by the above method, for the feature image data corresponding to the same position around the route, it is determined whether or not the content of the feature image data is the same, and the determination result is notified. It can be notified whether or not the content of the feature image data corresponding to the route periphery has changed.

  In another aspect of the present invention, there is provided a feature image data change notification program executed by an apparatus including a computer, and holds map information holding means for holding map information and feature image data corresponding to the map information. A feature image data related means for associating the feature image data holding means, the shooting date information of the feature image data, the position information corresponding to the feature image data, and the feature image data identification information; Means, route search means for searching for a route, feature image data search means for searching for feature image data corresponding to the periphery of the route using the feature image data related information, and the feature image data search Feature image data content change determination means for determining whether or not the content image data at the same point is changed among the feature image data searched by the means , Judgment result notification means for notifying the result of the feature image data content change determination means determines, the causes the computer to function as a. By executing this program on a computer, the above feature image data change notification device can be realized. This feature image data change notification program can be suitably handled in a state of being recorded on a recording medium.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[Navigation device]
FIG. 1 shows a configuration of a navigation device 200 according to an embodiment of the present invention. As shown in FIG. 1, the navigation device 200 includes a self-supporting positioning device 10, a GPS receiver 18, a system controller 20, a disk drive 31, a data storage unit 36, a communication interface 37, a communication device 38, a display unit 40, a voice output. A unit 50 and an input device 60 are provided.

  The autonomous positioning device 10 includes an acceleration sensor 11, an angular velocity sensor 12, and a distance sensor 13. The acceleration sensor 11 is made of, for example, a piezoelectric element, detects vehicle acceleration, and outputs acceleration data. The angular velocity sensor 12 is composed of, for example, a vibrating gyroscope, detects the angular velocity of the vehicle when the direction of the vehicle is changed, and outputs angular velocity data and relative azimuth data. The distance sensor 13 measures a vehicle speed pulse composed of a pulse signal generated with the rotation of the vehicle wheel.

  The GPS receiver 18 receives radio waves 19 carrying downlink data including positioning data from a plurality of GPS satellites. The positioning data is used to detect the absolute position of the vehicle from latitude and longitude information.

  The system controller 20 includes an interface 21, a CPU 22, a ROM 23, and a RAM 24, and controls the entire navigation device 200.

  The interface 21 performs an interface operation with the acceleration sensor 11, the angular velocity sensor 12, the distance sensor 13, and the GPS receiver 18. From these, vehicle speed pulses, acceleration data, relative azimuth data, angular velocity data, GPS positioning data, absolute azimuth data, and the like are input to the system controller 20. The CPU 22 controls the entire system controller 20. The ROM 23 includes a nonvolatile memory (not shown) in which a control program for controlling the system controller 20 is stored. The RAM 24 stores various data such as route data preset by the user via the input device 60 so as to be readable, and provides a working area to the CPU 22.

  A system controller 20, a disk drive 31 such as a CD-ROM drive or a DVD-ROM drive, a data storage unit 36, a communication interface 37, a display unit 40, an audio output unit 50, and an input device 60 are mutually connected via a bus line 30. It is connected to the.

  The disk drive 31 reads and outputs content data such as music data and video data from a disk 33 such as a CD or DVD under the control of the system controller 20. The disk drive 31 may be either a CD-ROM drive or a DVD-ROM drive, or may be a CD and DVD compatible drive.

  The data storage unit 36 is composed of, for example, an HDD and stores various data used for navigation processing such as map information and facility data.

  The communication device 38 includes, for example, an FM tuner, a beacon receiver, a mobile phone, a dedicated communication card, and the like, and receives various types of information via the communication interface 37.

  The display unit 40 displays various display data on a display device such as a display under the control of the system controller 20. Specifically, the system controller 20 reads map data from the data storage unit 36. The display unit 40 displays the map data read from the data storage unit 36 by the system controller 20 on a display screen such as a display. The display unit 40 includes a graphic controller 41 that controls the entire display unit 40 based on control data sent from the CPU 22 via the bus line 30 and a memory such as a VRAM (Video RAM), and can display image information that can be displayed immediately. A buffer memory 42 that temporarily stores, a display control unit 43 that controls display of a display 44 such as a liquid crystal display or a CRT (Cathode Ray Tube) based on image data output from the graphic controller 41, and a display 44 are provided. . The display 44 is composed of, for example, a liquid crystal display device having a diagonal of about 5 to 10 inches, and is mounted near the front panel in the vehicle.

  The audio output unit 50 includes a D / A converter 51 that performs D / A conversion of audio digital data sent from the disk drive 31 or the RAM 24 via the bus line 30 under the control of the system controller 20, and a D / A converter. An amplifier (AMP) 52 that amplifies the audio analog signal output from 51, and a speaker 53 that converts the amplified audio analog signal into audio and outputs it to the vehicle are configured.

  The input device 60 includes keys, switches, buttons, a remote controller, a voice input device, and the like for inputting various commands and data. The input device 60 is disposed around the front panel and the display 44 of the main body of the in-vehicle electronic system mounted in the vehicle. When the display 44 is a touch panel system, the touch panel provided on the display screen of the display 44 also functions as the input device 60.

[Feature image data change notification device]
FIG. 2 shows a functional configuration of the feature image data change notification device 1. The feature image data change notification device 1 is essentially composed of the components of the navigation device 200. The feature image data change notification device 1 includes a GPS receiver 18, a system controller 20, a data storage unit 36, a display unit 40, and an input device 60 as shown in the figure. The system controller 20 includes a map information display unit 101, a route search unit 102, a current position information acquisition unit 103, a feature image data search unit 104, a feature image data content change determination unit 105, and a determination result notification unit. 106 and a feature image data display unit 107. That is, when the system controller 20 executes a predetermined program, the map information display unit 101, the route search unit 102, the current position information acquisition unit 103, the feature image data search unit 104, and the feature image data content A change determination unit 105, a determination result notification unit 106, and a feature image data display unit 107 are realized.

  The map information DB 120 is a database in which map information is stored. The feature image file 150 is a file including the feature image data 140 and information related to the feature image data 140. Here, the file structure of the feature image file 150 is shown in FIG.

  The feature image file 150 includes a feature image data storage area 151 and an additional information storage area 152, and the feature image data 140 is stored in the feature image data storage area 151, and the additional information storage area 152 stores the feature image data 140. Is stored with additional information 141 such as latitude / longitude information 143, shooting date information 144 and shooting direction information 145 indicating the shooting position. Note that the file format of the feature image file 150 in the present embodiment is assumed to be an Exif (Exchange Image File Format) format.

  The feature image related information DB 160 is a database that holds feature image data related information 161 that is information related to the feature image data 140. Here, an example of the data structure of the feature image data related information 161 is shown in FIG.

  As shown in FIG. 4A, the feature image data related information 161 includes feature image data identification that indicates an identifier of the feature image data 140, a storage destination of the feature image file 150 including the feature image data 140, and the like. Information 135, latitude / longitude information 143 indicating the position where the feature image data 140 was captured, capture date information 144 indicating the date when the feature image data 140 was captured, and capture direction information 145 indicating the capture direction. .

  The feature image data change notification device 1 searches the feature image data related information 161 as described above with the latitude / longitude information 143 and the shooting date information 144, thereby obtaining the matrix table shown in FIG. Thus, the feature image data identification information 135 can be specified. That is, the feature image data change notification device 1 can identify the feature image data 140 by searching the feature image data related information 161 with the latitude / longitude information 143 and the shooting date information 144. Become.

  The map information display unit 101 acquires map information from the map information DB 120 and displays the map information on the display device 40. The route search unit 102 searches for a route based on the designated departure position and destination position. The current position information acquisition unit 103 acquires the latitude and longitude of the current position from the GPS receiver 18.

  The feature image data search unit 104 searches for the feature image data 140 that matches the position condition related to the specified position information and the shooting date condition related to the specified shooting date information.

  A specific example will be described with reference to FIG. As shown in FIG. 5A, there are feature image data 140A to feature image data 140D in which the value of latitude / longitude information 143 is I1 or I2 and the shooting date information 144 is T1 or T2. For the feature image data 140A to feature image data 140D, the feature image data identification information 135 including the identification information of the feature image data 140, the latitude / longitude information 143, and the shooting date information 144 are associated with each other. Assume that the image data related information 161 is stored in the feature image related information DB 160.

  For example, when a search command for the feature image data 140 that matches the position condition “latitude / longitude information 143 is I1” based on the location information acquired by the current location information acquisition unit 103 is detected, the feature image data search is performed. As shown in FIG. 5B, the unit 104 searches the feature image data 140A and the feature image data 140C corresponding to the latitude / longitude information 143 corresponding to I1, and the feature image data 140A and the feature image data 140C. Is sent to the system controller 20 (hereinafter, the state in which the feature image data 140 matching the position condition is held in the system controller 20 is also referred to as a search preparation state).

  When a search command for the feature image data 140 that matches the shooting date condition “shooting date information 144 is T1” is detected by the user's input operation, the feature image data search unit 104 searches the search preparation state. The feature image data 140A is searched from the feature image data 140, and the feature image data 140A is determined as display target feature image data.

  In this way, the feature image data search unit 104 causes the system controller 20 to hold the feature image data 140 that matches the position condition. Then, the feature image data change notification device 1 is configured such that the feature image data search unit 104 searches the feature image data 140 that matches the shooting date condition from the feature image data 140 in the search preparation state, thereby storing the storage unit 36. Therefore, the feature image data 140 can be searched more efficiently than the case where the feature image data 140 is searched.

  The feature image data content change determination unit 105 determines whether there is a change in the content of the feature image data 140 at the same point. Specifically, the feature image data content change determination unit 105 performs image analysis processing on the feature image data 140 at the same point, and determines whether the feature image data content is the same.

  The determination result notification unit 106 notifies the result determined by the feature image data content change determination unit 105. Specifically, the determination result notification unit 106 displays the determination result on the display unit 40.

  The feature image data display unit 107 displays the feature image data 140 searched by the feature image data search unit 104 on the map information display screen 190 on the display unit 40. In addition, the feature image data display unit 107 displays information on the feature image data 140 in the search preparation state. As a specific example, the feature image data display unit 107 displays information related to the shooting date and time of the feature image data 140 in the search preparation state in a predetermined area of a screen displaying map information.

  The display unit 40 is a display or the like and displays various data. The input device 60 is a means for the user to select and determine various menus. Specifically, a keyboard, a mouse, or the like.

  In the present embodiment having the above configuration, the storage unit 36 functions as a map information holding unit, a feature image data holding unit, and a feature image data related information holding unit.

(First embodiment)
[Map display screen and feature image data change notification method]
Next, the map display screen 190 and the feature image data change notification of the first embodiment will be described with reference to FIG. As shown in FIG. 6A, the map information display screen 190 includes a shooting date display area 191 for displaying the shooting date of the feature image data 140 to be displayed, a map information display area 194 for displaying map information, A feature image data display area 195 for displaying the object image data 140 and an additional information display area 196 for displaying the additional information 141 of the feature image data 140 to be displayed are provided.

  When a route search command is detected by a user input operation, the feature image data change notification device 1 performs a route search. Then, the feature image data change notification device 1 searches the feature image data 140 around the route obtained as a result of the route search, and puts the searched feature image data 140 into a search preparation state.

  Then, the feature image data change notification device 1 extracts the feature image data 140 having the same latitude / longitude information 143 of the feature image data 140 from the feature image data 140 in the search preparation state. Then, the feature image data change notification device 1 performs image analysis on the extracted feature image data 140 and determines whether or not the contents of the feature image data 140 are the same.

  Next, the feature image data change notification device 1 notifies the determination result. Then, as shown in FIG. 6B, the feature image data change notification device 1 displays route information and a position marker 193 at a position where the feature image data 140 corresponding to the periphery of the route is located. Note that the feature image data change notification device 1 displays a position marker 193 having a different pattern or color, such as the position marker 193B, at a place where the feature image data 140 having different contents is present at the same position.

  When the position marker 193 is selected, the feature image data change notification device 1 displays the feature image data 140 corresponding to the selected position in the feature image data display area 195, and the feature image data 140 additional information 141 is displayed in the additional information display area 196. Note that the feature image data change notification device 1 selects one of the feature image data 140 corresponding to the position marker 193 when the position marker 193 having the feature image data 140 having different contents at the same position is selected. The feature image data 140 is displayed, and the feature image data existence time information 197 is displayed at a location corresponding to the shooting date of the feature image data 140 in the search preparation state in the shooting date display area 191. Then, when the shooting date marker 192 is aligned with the position of any one of the feature image data existence time information 197, the feature image data change notification device 1 displays the feature image data 140 corresponding to the shooting date. .

  As described above, the feature image data change notification device 1 searches the feature image data 140 around the route information, extracts the feature image data 140 captured at the same position from the feature image data 140, and extracts the object to be extracted. It is determined whether or not the contents of the feature image data 140 are the same, and the determination result is notified.

  Therefore, when the feature image data change notification device 1 holds feature image data having a different landscape at a predetermined position in the route, the user is notified of the presence of the feature image data 140 having a different landscape. Can do.

[Feature image data change notification processing procedure]
Here, the processing procedure of the feature image data change notification processing in the first embodiment will be described with reference to the flowchart shown in FIG. This process is realized by the system controller 20 in the feature image data change notification device 1 executing a program prepared in advance.

  First, when the feature image data change notification device 1 detects that a route search command has been issued by a user input operation, the route search unit 102 performs route search and generates route information 198 (step S1). . Then, the feature image data search unit 104 searches the feature image data related information 161 whose latitude / longitude information 143 corresponds to the route peripheral position, and the feature image data 140 corresponding to the corresponding feature image data related information 161. Is set in a search preparation state (step S2).

  Next, the feature image data content change determination unit 105 extracts the feature image data 140 at the same position from the feature image data 140 searched by the feature image data search unit 104. Then, if there is the feature image data 140 at the same position, the feature image data content change determination unit 105 performs image analysis processing on the extracted feature image data 140, and the extracted feature image data 140 has the same content. Is determined (step S3).

  When the feature image data content change determination unit 105 determines that there is no change in the feature image data 140 at the same point (step S4; No), the determination result notification unit 106 changes the feature image data 140. Notification that there is no. Specifically, the determination result notification unit 106 displays a message on the display unit 40 (step S5). Then, the process proceeds to step S7.

  On the other hand, if the feature image data content change determination unit 105 determines that there is a change in the feature image data 140 at the same point (step S4; Yes), the determination result notification unit 106 displays the feature image data on the route. A notification to the effect that there is a change is made for 140 (step S6), and the process proceeds to step S7.

  The map information display unit 101 displays the map information, the route information 198, and also displays the position marker 193 at a position corresponding to the latitude / longitude information 143 of the feature image data 140 (step S7).

  When the position marker 193 is designated by the user's input operation, the feature image data display unit 107 displays the feature image data 140 (step S8). When there are a plurality of feature image data 140 corresponding to the designated position marker 193 and the contents of the feature image data 140 are different, the feature image data display unit 107 displays the feature image data existence time information 197. Displayed in the shooting date display area 191. When step S8 ends, the feature image data change notification process ends.

(Second embodiment)
[Feature image data change notification method and feature image data change notification processing procedure]
Next, the feature image data change notification method and the feature image data change notification processing procedure in the second embodiment will be described. In the feature image data change notification method according to the second embodiment, the feature image data change notification device 1 is applied to a navigation device, and the feature image data 140 corresponding to the current position of a mobile object equipped with the navigation device is obtained. It is determined whether or not it has been changed, and if the feature image data 140 corresponding to the movement position has been changed, the fact that it has been changed is notified.

  Thus, the feature image data change notification device 1 compares the feature image data 140 when there are a plurality of feature image data 140 corresponding to the current position of the moving object, and the contents of the feature image data 140 By determining whether or not has changed, it is possible to notify the user when the scenery has changed near the movement position.

  Next, the processing procedure of the feature image data change notification process in the second embodiment will be described with reference to the flowchart shown in FIG. This process is realized by the system controller 20 in the feature image data change notification device 1 executing a program prepared in advance.

  First, when the feature image data change notification device 1 detects that a route search command has been issued by a user input operation, the route search unit 102 performs route search and generates route information 198 (step S21). . Then, the current position information acquisition unit 103 acquires the current position via the GPS receiver 18 (step S22).

  Then, when the moving body has not arrived at the destination (step S23; No), the system controller 20 moves to step S24.

  Next, the feature image data search unit 104 searches the feature image data 140 near the current location on the route, and puts the feature image data 140 into a search preparation state (step S24).

  Next, the feature image data content change determination unit 105 extracts the feature image data 140 at the same position from the feature image data 140 searched by the feature image data search unit 104. Then, if there is the feature image data 140 at the same position, the feature image data content change determination unit 105 performs image analysis processing on the extracted feature image data 140, and the extracted feature image data 140 has the same content. It is determined whether or not (step S25).

  When the feature image data content change determination unit 105 determines that the feature image data 140 is not changed at the same point (step S26; No), the process proceeds to step S22.

  On the other hand, when the feature image data content change determination unit 105 determines that there is a change in the feature image data 140 at the same point (step S26; Yes), the determination result notification unit 106 displays the feature image data on the route. A notification to the effect that there is a point where there is a change is made (step S27). The feature image data display unit 107 displays the feature image data existence time information 197 in the shooting date display area 191. Then, when the shooting date marker 192 is set to the position of any one of the feature image data existence time information 197 by the user's input operation, the feature image data display unit 107 displays the feature image data corresponding to the shooting date. 140 is displayed (step S28), and the process proceeds to step S22.

  In addition, the system controller 20 complete | finishes a feature image data change notification process, when the mobile body has arrived at the destination (step S23; Yes).

  As described above, the feature image data change notification device 1 includes a map information holding unit that holds map information, a feature image data holding unit that holds feature image data corresponding to map information, and a feature image. Feature image data related information holding means for associating shooting date information of data, position information corresponding to feature image data, and feature image data identification information, route search means for searching for a route, and around the route Among the feature image data searched by the feature image data search means and the feature image data searched by the feature image data search means for the corresponding feature image data, the feature image data at the same point A feature image data content change determination unit for determining whether or not the content has been changed, and a determination result notification unit for notifying a result determined by the feature image data content change determination unit. .

  As described above, the feature image data change notification device 1 determines whether or not the contents of the feature image data 140 are the same for the feature image data 140 corresponding to the same position around the route, and notifies the determination result. Therefore, it is possible to notify the user whether or not the content of the feature image data 140 corresponding to the route periphery has changed. Therefore, the feature image data change notification device 1 performs the content change determination on the feature image data 140 even if the scenery in the route has changed in the same route as the route through which the user has previously passed, and the scenery is changed. Therefore, the user can avoid feeling uneasy due to the change of the scenery.

  The feature image data change notification device 1 further includes a current position information acquisition unit 103 that acquires current position information, and the feature image data search unit 104 includes feature image data corresponding to the current position information on the route. 140 is searched. Therefore, the feature image data change notification device 1 searches the feature image data 140 corresponding to the current position on the route, and among the searched feature image data 140, the feature corresponding to the same latitude / longitude information 143. Image analysis processing can be performed on the object image data 140 to determine whether or not the contents of the feature image data 140 are the same. Therefore, if the feature image data change notification device 1 is applied to a navigation device, the feature image data change notification device 1 can notify the user whether or not the scenery around the travel position has been changed.

  In the feature image data change notification device 1, the feature image data display unit 107 displays the specified feature image data 140 in the feature image data display area 195. Accordingly, the feature image data 140 corresponding to the route can be displayed.

  Further, in the feature image data change notification device 1, the feature image data display unit 107 displays the feature image data existence time information 197 which means the content change time information of the feature image data 140. In this case, since the feature image data change notification device 1 displays the change time of the feature image data 140 at the same point, the change time of the feature image data 140 can be visually notified to the user. it can.

  In the above embodiment, when the shooting date marker 192 moves to the position of the feature image data existence time information 197, the feature image data search unit 104 obtains the shooting date information 144 from the feature image data 140 in the search preparation state. The case of searching for the feature image data 140 that is the same as the time of the feature image data existence time information 197 has been described. However, the present invention is not limited to this, and as a result of the search, the feature image corresponding to the shooting date is obtained. When there is no data 140, the latest feature image data 140 may be displayed.

  Although not particularly described in the above embodiment, as shown in FIG. 9, when the route information 198A based on the map information at the time of route search and the route information 198B based on the past map information are different, In the object image data change notification device 1, the map information DB 120 holds past map information, and the route search unit 102 searches the current route information 198A based on the current map information, and also based on the past map information. The past route information 198B is searched, the feature image data search unit 104 searches the current route information 198A and the feature image data 140 near the past route information 198B, and the feature image data content change determination unit 105 searches the current route information 198B. Change when there is feature image data 140 corresponding to different route locations in the route information 198A and the past route information 198B It may be determined that there is. In the example of FIG. 9, among the feature image data corresponding positions 175A to 175F, the feature image data corresponding positions 175B, 175C, and 175D exist in different route portions between the current route information 198A and the past route information 198B. Therefore, the feature image data content change determination unit 105 determines that there is a change.

  According to this, when the current route information is different from the past route information, the feature image data change notification device 1 notifies the user that the feature image data 140 exists in different route portions. Can do.

  Although not specifically described in the above embodiment, the feature image data content change determination unit 105 determines the feature image data 140 having the same shooting direction information 145 among the feature image data 140 at the same point. The content change may be determined.

  In this case, the feature image data change notification device 1 has different shooting directions even if there are a plurality of feature image data 140 having the same position information among the feature image data 140 searched by the feature image data search unit 104. Then, since the content change determination is not performed for the feature image data 140, the feature image data content change determination unit 105 compares the content of the feature image data 140 with the same position information and different shooting directions. It is possible to avoid judging that the content has been changed.

  In the first embodiment, the case where the feature image data change notification device 1 is applied to a navigation device has been described. However, the present invention is not limited to this and may be applied to a personal computer or the like.

It is a conceptual diagram of a navigation apparatus. It is a block diagram which shows schematic structure of the feature image data change notification apparatus. It is a figure which shows the file structure of a feature image file. It is a figure which shows the data structure of the feature image data relevant information. It is a figure used for description of the feature image data related information search. It is a figure which shows the example of the map display screen in 1st Example. It is a flowchart regarding the feature image data change notification process in the first embodiment. It is a flowchart regarding the feature image data change notification process in the second embodiment. It is a figure where it uses for description of another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Feature image data change notification apparatus 101 Map information display part 102 Route search part 103 Current position information acquisition part 104 Feature image data search part 105 Feature image data content change determination part 106 Determination result notification part 107 Feature image data display Department 120 Map information DB
150 feature image file 160 feature image related information DB

Claims (9)

Map information holding means for holding map information;
Feature image data holding means for holding feature image data corresponding to the map information;
Feature image data related information holding means that associates the shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information;
Route search means for searching for a route;
Feature image data search means for searching for feature image data corresponding to the periphery of the route using the feature image data related information;
Of the feature image data searched by the feature image data search means, the feature image data content change determination means for determining whether or not the content of the feature image data at the same point has been changed,
A determination result notifying means for notifying a result determined by the feature image data content change determining means;
A feature image data change notification device comprising: It further comprises current position information acquisition means for acquiring current position information,
2. The feature image data change notification device according to claim 1, wherein the feature image data search means searches for feature image data corresponding to the current position information on the route.   The feature image data change notification device according to claim 1, further comprising feature image data display means for displaying feature image data on the route.   4. The feature image data change notification device according to claim 1, wherein the feature image data display means displays content change time information of the feature image data. The feature image data related information holds shooting direction information,
2. The feature image data content change determination unit performs content change determination on feature image data that is feature image data at the same point and that has the same shooting direction information. 5. The feature image data change notification device according to any one of 4 above. The map information includes current map information and past map information,
The route search means searches for a current route based on current map information and a past route based on past map information,
The feature image data search means searches for feature image data around the current route and feature image data around the past route,
The feature image data content change determination means has feature image data corresponding to a difference between the current route and the past route among the feature image data searched by the feature image data search means. The feature image data change notification device according to claim 1, wherein the feature image data change notification device determines that there is a change. A map information holding step for holding map information;
A feature image data holding step for holding feature image data corresponding to the map information;
A feature image data related information holding step that associates shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information;
A route search process for searching for a route;
A feature image data search step for searching for feature image data corresponding to the route periphery using the feature image data related information;
Of the feature image data searched by the feature image data search step, a feature image data content change determination step for determining whether or not the content of the feature image data at the same point has been changed,
A determination result notification step of notifying the result determined by the feature image data content change determination step;
And a feature image data change notification method. A feature image data change notification program executed by an apparatus including a computer,
Map information holding means for holding map information;
Feature image data holding means for holding feature image data corresponding to the map information;
Feature image data related information holding means that associates the shooting date information of the feature image data, position information corresponding to the feature image data, and the feature image data identification information;
Route search means for searching for a route;
Feature image data search means for searching for feature image data corresponding to the periphery of the route using the feature image data related information;
Of the feature image data searched by the feature image data search means, the feature image data content change determination means for determining whether or not the content of the feature image data at the same point has been changed,
A feature image data change notification program for causing the computer to function as determination result notification means for notifying a result determined by the feature image data content change determination means.   A storage medium storing the feature image data change notification program according to claim 8.

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