JP2016127312A - Imaging information processing unit and imaging information processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an imaging information processing unit capable of capturing an image of an imaging object, while reducing the impact of environmental information.SOLUTION: An imaging information processing unit for capturing an image of an imaging object and producing image information, that can specify an imaging object and can be transmitted, from a captured image has a control unit 19, an imaging camera 11 for capturing an image of an imaging object DR, at least a part of which is located in the rear of a transparent plate FR, an image information processing unit 192 for producing image information, that can specify an imaging object and can be transmitted, from the image of the imaging object captured by means of the imaging camera 11, and a transmission unit 17 for transmitting the image information subjected to information processing in the image information processing unit so as to be able to be transmitted. The control unit 19 controls the imaging camera 11, image information processing unit 192 and transmission unit 17, and adjusts the imaging conditions of the imaging camera 11 in accordance with the imaging environmental information.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an imaging information processing apparatus and an imaging information processing system.

Various types of "imaging information processing systems" having an imaging information processing apparatus and a data processing unit that receives image information transmitted from the imaging information processing apparatus and identifies the captured imaging target are implemented. Yes.
For example, “automatic toll collection system for toll road toll booth” and “speed speed control system” can be cited.
In the speed control system, the vehicle and its driver that exceed the speed limit are imaged with an imaging camera, and the vehicle number and driver image are collated with the information stored in the data processing unit. Identification is done.
In order to accurately specify an imaging target in such an imaging information processing system, it is necessary to obtain a “good captured image of the imaging target” by the imaging information processing apparatus.

For example, when a driver of a vehicle is imaged, a “transparent plate (a vehicle windshield or a helmet shade worn by a motorcycle driver)” is often interposed between the driver and the imaging camera.
When imaging a driver through such a transparent plate, it is conceivable that the reflected light from the transparent plate acts as noise on the captured image and prevents acquisition of a good captured image.
Patent Document 1 proposes to reduce the influence of sunlight or illumination light reflected by a windshield using a “polarizing filter”.
It is not only sunlight and illumination light that are reflected by a transparent plate such as a windshield. Scattered light from buildings in the vicinity of the vehicle and light such as sunbeams are also reflected.
Also, even if the light that illuminates a transparent plate such as a windshield is sunlight, the intensity is different during the day and in the morning and evening, and weather information such as sunny weather, cloudy weather, rain and snow, and the sun and shadow areas. The intensity changes. Not only in mountainous areas, beaches and towns, the situation of sunlight irradiation is different.
These weather information and geographical information cannot generally be controlled artificially.

As described above, “information that cannot be artificially controlled” that affects the imaging of the imaging target via the transparent plate is referred to as “environment information” in this specification.
When the driver of the vehicle in the above description is imaged through the windshield or helmet shade, the image of the driver (or the driver's face) is affected by the environmental information.
Since the vehicle itself is imaged without passing through a transparent plate, generally, there is no “serious influence” due to environmental information. However, since the change in the environment information causes a change in the imaging state even in the case of the “imaging target without passing through the transparent plate”, it is preferable to take measures corresponding to the environment information in this case as well.

  This invention makes it a subject to implement | achieve the imaging information processing apparatus which can image an imaging target, reducing the influence of environmental information.

  The imaging information processing apparatus according to the present invention is an imaging information processing apparatus that captures an imaging target and uses the captured image as image information that can identify and transmit the imaging target. An imaging camera that captures an imaging target that is behind the transparent plate, and an image information processing unit that uses the captured image of the imaging target captured by the imaging camera as image information that can identify and transmit the imaging target And a transmission unit that transmits image information that has been processed and transmitted by the image information processing unit, and the control unit controls the imaging camera, the image information processing unit, and the transmission unit. Then, the imaging condition by the imaging camera is adjusted according to the imaging environment information.

  According to the present invention, it is possible to realize an imaging information processing apparatus capable of imaging an imaging target while reducing the influence of environmental information.

1 is an explanatory diagram illustrating one embodiment of an imaging information processing system. FIG. It is explanatory drawing which shows the outline of a speed violation control system. It is a figure for demonstrating environmental information. It is a figure for demonstrating the polarization camera as an imaging camera. It is a flowchart explaining an example of the process by an imaging information system. It is a flowchart explaining another example of the process by an imaging information system.

Hereinafter, embodiments will be described.
FIG. 1 is an explanatory diagram showing one embodiment of an imaging information processing system.
In the figure, reference numeral 10 denotes an “imaging information processing apparatus”, and reference numeral 20 denotes a “data processing unit”.

The imaging information processing apparatus 10 includes a polarization camera 11, an illumination device 13, a speed measurement device 15, a server computer 17, and a control unit 19.
The polarization camera 11, the illumination device 13, the speed measuring device 15, the server computer 17, and the control unit 19 are provided in the casing.

Hereinafter, the imaging information processing apparatus in which the polarization camera 11, the illumination device 13, the speed measurement device 15, the server computer 17, and the control unit 19 are installed in a casing is simply referred to as a “cabin”.
The polarization camera 11 is a specific example of an “imaging camera”. A “polarization camera” is known from Patent Document 2 and the like.
For example, a polarizing plate is arranged in front of the light receiving surface of a two-dimensional solid-state image pickup device in which the light receiving surface is positioned so as to match the image surface of the imaging optical system, and the exposure amount can be varied by rotating the polarizing plate. Can be used.

The illumination device 13 is a device that illuminates an imaging target by irradiating illumination light to the imaging region of the polarization camera 11, and a known appropriate device can be used.
The velocity measuring device 15 is a device that measures the velocity of an imaging target, and appropriately uses, for example, a device that utilizes the “light Doppler effect” known from Patent Document 3 or a “laser radar” that uses laser light. be able to.
The server computer 17 is an example of a “transmission unit”.
The control unit 19 is substantially configured as a computer or a CPU, and includes a device control unit 191, an image processing unit 192, and a storage unit 193 as functional units.
The device control unit 191 controls the polarization camera 11, the illumination device 13, the speed measurement device 15, and the server computer 17.
The image processing unit 192 and the storage unit 193 will be described later. The image processing unit 192 serves as an “image information processing unit”.
The server computer 17 may be incorporated as a “server software” in a control unit 19 configured as a computer or the like.

The data processing unit 20 is connected to the server computer 17 of the imaging information processing apparatus 10 via the Internet line INT, and has a specific function for receiving the image information transmitted from the imaging information processing apparatus 10 and specifying “imaged imaging target”. Have.
The data processing unit 20 is generally configured as a “data processing system” including a computer.
The “imaging information processing system” shown in FIG. 1 assumes a “speed violation control system”, and “speed violation control” by the system will be described below.

FIG. 2 is an explanatory diagram showing an outline of the speed violation control system.
In FIG. 2, the symbol RD is “road”, and the symbol CR is “vehicle traveling on the road RD”. Accordingly, the imaging target is the vehicle CR and its driver (including a person other than the driver in the vehicle), and the “driver is a transparent windshield” during imaging. Imaged.
In this case, the vehicle and the driver should be specified. Information for specifying the vehicle includes the vehicle number, characteristics (vehicle type, shape, scratches, modification status), etc. (hereinafter referred to as “vehicle identification information”). Say).
In addition, the identification of the driver and the like can include the shape of the driver in the vehicle, an in-car figurine (hereinafter referred to as “in-vehicle identification information”), and the like.
Of the vehicle identification information, the “vehicle number” is important, and the vehicle identification information is “the shape of the driver (particularly the face portion)”.
Among these pieces of information, “in-vehicle identification information” is specified based on the captured image captured through the windshield, and thus is influenced by environmental information.

Referring to FIG. 2, reference numerals 10-1, 10-2, 10-3,..., 10-i, are “imaging information processing apparatuses” described with reference to FIG. 10-1, 10-2 etc.
The cabins 10-1, 10-2 and the like are arranged at appropriate positions along the road RD, and the individual cabins 10-i are connected to the data processing unit 20 through the Internet line INT.
The data processing unit 20 holds information necessary for identifying a vehicle or a driver, such as “Road Traffic Center”, for example, and based on image information transmitted from the cabin 10-i, Identify.
In the situation of FIG. 2, when the vehicle CR approaches the cabin 10-i and enters the “handling area” of the cabin 10-i, the cabin 10-i operates.

Returning to FIG. 1, the control unit 19 controls the speed measuring device 15 by the device control unit 191 due to the intrusion into the handling area of the vehicle, and measures the speed of the intruding vehicle (referred to as “vehicle speed”). To do.
The storage unit 193 of the control unit 19 stores a speed limit of the vehicle on the road RD (referred to as “vehicle speed limit”), and the control unit 19 determines that the measured vehicle speed is the vehicle speed limit. Determine whether it has exceeded.
When the vehicle speed exceeds the vehicle speed limit, the vehicle is determined as a “speed violation vehicle” and specified as an imaging target.
The control unit 19 controls the polarization camera 11 with the device control unit 191 to capture an image of the speed violation vehicle.
At that time, for example, when the situation in which imaging is performed is “a sufficient amount of light cannot be obtained with natural light at night”, the device controller 191 controls the illumination device 13 to illuminate the imaging target. This illumination can be, for example, illumination with flash light that matches the imaging timing of the polarization camera 11.
The condition “whether or not to perform illumination by the illumination device 13” is also stored in the storage unit 193.

The picked-up image of the picked-up image picked up by the polarization camera 11 is input to the server computer 17.
The image processing unit 192 of the control unit 19 controls the server computer 17 to execute image processing on the captured image input from the polarization camera 11.
The image processing to be executed is a known processing such as “density conversion, edge correction, noise removal, image compression”.
By this image processing, the captured image becomes “image information that can be transmitted” and is transmitted from the server computer 17 serving as a transmission unit to the data processing unit 20.
The data processing unit 20 identifies the speed violation vehicle and its driver based on the image information transmitted from the cabin 10-i.
This “specification” can be performed by an appropriate method conventionally known.
For example, the sent image information can be displayed on the display as a “viewable image” and can be “viewed” to perform a specific operation.
Alternatively, the data processing unit 20 can collate the data with the “image information” to automatically specify the data. In addition, the “visual identification” and the “automatic identification” can be used in combination, and the “specific accuracy” can be improved in this way.
In addition, the imaging by the polarization camera 11 to be imaged is not limited to “one image”, but may be performed continuously until the vehicle passes the imaging area after the speed violation vehicle is identified. Also good.

In the example being described, among the objects to be imaged by the polarization camera 11, the driver or the like is in the vehicle, and imaging is performed via a “transparent plate called a windshield”.
Therefore, the captured image for specifying the “in-vehicle specifying information” of the driver or the like is affected by the environmental information. The environmental information changes depending on the time and geographical conditions as described above.
The influence of environmental information is due to the reflected light from the windshield, and environmental information from sunlight will be described below.

In FIG. 3, symbol CR indicates a “speed violation vehicle” to be imaged, symbol DR indicates “driver”, symbol FR indicates “windshield”, and symbol 11 indicates a polarization camera.
The symbol N indicates “the normal of the windshield FR”, and the symbol LA indicates “sunlight”.
Reference sign LB indicates “regular reflected light” reflected by the driver DR irradiated with sunlight LA and traveling toward the polarization camera 11. Reference sign LB1 indicates “reflected sunlight component” reflected by the windshield FR. Is shown.
Reference sign θA indicates the “incident angle” of the sunlight LA to the windshield FR, and reference sign θB indicates the “reflective angle” of the reflected light LB, LB1.

Of the reflected light LB and the reflected sunlight component LB1, it is the reflected sunlight component LB1 due to the windshield FR that acts as noise on the captured image of the vehicle interior specific information.
Therefore, in order to reduce noise, it is necessary to reduce the influence of the reflected sunlight component LB1.
In the polarization camera 11, the “influence of the reflected sunlight component LB1” can be reduced as follows.
As is well known, the sunlight LA is naturally polarized light, and “reflectance of the S-polarized component (hereinafter simply referred to as“ S reflectivity ”) with respect to the reflector (the windshield FR in the example being described). "And the reflectance of the P-polarized component (hereinafter simply referred to as" P reflectance ") are different from each other.
That is, both the S reflectance and the P reflectance are about 4% at an incident angle of 0 degree, but the S reflectance increases monotonously as the incident angle increases.
The P reflectance decreases monotonously with increasing incident angle, and after reaching 0% at the Brewster angle (about 55 degrees with respect to a transparent body such as glass), it monotonously increases with increasing incident angle.
And P reflectance is always below S reflectance.

FIG. 4 illustrates the structure of the polarization camera 11 in an explanatory manner.
The main parts of the polarization camera 11 are an imaging optical system LN, a polarization filter FL, and an area sensor IMS. The light from the imaging target forms an image on the light receiving surface of the area sensor IMS by the imaging action of the imaging optical system LN.
The formed image is converted into an image signal by the area sensor IMS.
The polarization filter FL transmits only the P-polarized light component of the imaging light from the imaging optical system LN to the area sensor IMS side.
By doing so, the S-polarized component having a high reflectance in the light incident on the polarization camera 11 can be blocked from the area sensor IMS, so that the reflected light component that causes noise can be effectively reduced. it can.

Returning to FIG. 3, the incident angle: θA and the reflection angle: θB are equal in size.
Incident angle: The magnitude of θA varies depending on time and place. In general, the incident angle: θA is maximum at noon and decreases in the morning and evening.
The incident angle: θA is seasonally large in spring and summer and small in autumn and winter.
In addition, when the place where imaging is performed has an inclination with respect to the horizontal direction, the incident angle: θA increases or decreases depending on the direction of the inclination.
Furthermore, the place where the image is taken may be affected by surrounding light-shielding objects (buildings, street trees, etc.) depending on the time. In such a place, the P-polarized light component and the light also vary with time.
In short, the incident angle: θA changes depending on the place where the imaging information processing apparatus (cabin) is installed and the time at the place.
That is, the location (position) factor and the temporal (seasonal) factor that cause the variation of the incident angle: θA are environmental information.

As described above, if the polarization camera 11 is used and the S-polarized light component is blocked by the polarizing filter FL and imaging is performed, the influence of “reflected light from the windshield” that causes noise can be effectively reduced. .
However, as described above, when environmental information changes, it is not possible to perform imaging in an optimal or good state.
In the imaging information processing apparatus according to the present invention, as described above, “the imaging camera, the image information processing unit, and the control unit that controls the transmission unit adjust imaging conditions by the imaging camera according to the imaging environment information.
Speaking of the embodiment being described, the imaging camera 11, the illumination device 13, the image information processing unit 192, and the control unit 19 that controls the server computer 17 that is a transmission unit are controlled by the imaging camera 11 according to the imaging environment information. Adjust the imaging conditions.
The adjustment of the imaging condition is, for example, selection of the presence or absence of illumination by the illumination device 13, change / adjustment of the illumination light amount, and adjustment of the exposure amount in the polarization camera 11 when possible.

If “exposure amount adjustment” is performed optically, a method of changing the aperture ratio of the aperture stop ST provided in the imaging optical system LN of the polarization camera 11 shown in FIG. 4 can be considered. In that case, a mechanical mechanism for changing the aperture ratio is required.
The captured image is acquired by the area sensor IMS. The area sensor IMS converts the received light amount to the amount of light received by the area sensor IMS, which is proportional to the length of the light reception time (for example, one frame time). To do.
Therefore, it is possible to adjust the exposure amount by adjusting the “light reception time of the area sensor IMS”. In this adjustment method, the “mechanical mechanism” is not required, and the device control unit 191 of the control unit 19 does not need to. Control is also easy and fast.

That is, in the embodiment being described, as shown in FIG. 4, the area sensor IMS is controlled by the control unit 19 to adjust the exposure amount.
The control of the illumination device 13 and the adjustment of the exposure amount of the polarization camera 11 are performed according to the environment information. This environment information is stored as data in the storage unit 193 of the control unit 19.
The environment information stored in the storage unit 193 is “geographic environment information” and “temporal environment information” in the example being described.
The geographical environment information is environment information that depends on the position where the cabin 10-i is installed. For example, the inclination of the imaging area (the presence or absence of a road slope), the state of a curve, and the like by the cabin 10-i are measured in advance and stored in the storage unit 193 as geographical environment information.
The temporal environment information is temporal environment information in the imaging area of the cabin 10-i.

In other words, the position of the sun for each season is the “position for each hour of the day” and the weather information (change in brightness due to sunny, cloudy, rain, snow, etc.). Remember me.
Further, individual data of geographical environment information and temporal environment information, information for controlling the lighting device 13, and information for adjusting the polarization camera 11 are also stored in the storage unit 193.
Considering the case where the “vehicle CR” travels in the imaging area of the cabin 10-i installed at a specific position, the geographical environment information and the “imaging target information” are determined according to the traveling vehicle.
Further, the temporal environment information is determined according to the date and time when the vehicle CR is traveling.
The lighting device 13 is controlled by determining “use / non-use” of the lighting device 13 in accordance with the temporal environment information.

Further, the exposure amount of the polarization camera 11 is adjusted and set to “a value most suitable for the temporal environment information” according to the temporal environment information.
When the traveling vehicle is identified as a “speed violation vehicle”, imaging is performed under the conditions set as described above.
In this manner, a captured image of the imaging target in which the influence of the reflected light from the windshield is reduced is obtained.
Since the inclination angle of the normal N of the windshield in the vehicle “varies depending on the vehicle type”, the “tilt angle of the windshield for each vehicle type” is measured in advance and stored in the storage unit 193, and the exposure described above. It is preferable that the amount can be adjusted by the data of the “tilt angle”.

  Table 1 shows an example of the “exposure amount” set in the polarization camera 11 according to the environmental information.

“Season / Time” in the upper left column of Table 1 indicates “Time” in the horizontal direction and “Season” in the vertical direction.
“April to June” is “Spring”, “July to September” is “Summer”, “October to December” is “Autumn”, “January to March” No is the “winter season”.
The exposure amount illustrated in Table 1 is an example of “seasonal / time exposure amount in fine weather”.
Since the exposure amount setting method varies depending on the specifications of the area sensor of the imaging camera, the numerical values representing the exposure amount in Table 1 are relative. The larger the exposure amount, the longer the irradiation time applied to the area sensor (imaging device), and the brighter the image. The maximum value of the exposure amount is 5 and the minimum value is 1.
Under the exposure conditions in Table 1, “the exposure amount is minimized” at noon when the sunlight is strong, and “the exposure amount is increased” when the sun is low in the evening or morning. In winter, the exposure is larger than the summer.
In addition, since it is assumed that the illumination device 13 performs illumination at night and the illumination condition is “constant”, the exposure amount is also a constant value “2” throughout the four seasons.
Of course, the table in Table 1 is an example, and an optimum exposure amount table is created in an environment in which the cabin 10-i is installed.
An exposure amount table similar to that in Table 1 is created for “cloudy or rainy” and stored in the storage unit 193.

In addition, the table in Table 1 may “separate the season and time more finely or roughly depending on the performance of the imaging device”.
For example, the season is summer and other seasons, and the time is dawn, evening, morning, afternoon, etc.
Therefore, the numerical value of “exposure amount”, the number of rows, and the number of columns are also different from the table in Table 1.
In some cases, there is no table of seasons and times.
In that case, a predetermined initial exposure amount can be set in the imaging apparatus as “corresponding to surrounding environment other than season and time (terrain and road conditions)”.

The “flow of processing steps” in the imaging information processing apparatus (cabin 10-i) described above will be described with reference to FIG.
First step: S11 is “a step of acquiring environmental information”.
In the embodiment described above, the temporal environment information (month information and time information) stored in advance in the storage unit 19 of the control unit 19 is read by the timer built in the control unit 19.
The geographical environment information is unique to each cabin 10-i, and the imaging range, imaging resolution, frame rate, and the like of the polarization camera 11 are set in advance as the “reference state” in accordance with the unique conditions.
The “exposure amount” corresponding to the read temporal environment information is read from the data table such as Table 1. This is the “step for acquiring environmental information (step: S11)”.

Subsequent steps: S12 is a “step for adjusting the imaging conditions”.
Step: In S12, the operation / non-operation of the illumination device 13 is determined in accordance with the acquired environment information, and when the imaging illumination light is required, the illumination device 13 is controlled to be lit.
Further, the exposure amount of the polarization camera 11 is adjusted.
In this state, step S12 ends.

Step: In S13, a “step for identifying a speed violation vehicle” is performed.
That is, the device control unit 191 of the control unit 19 controls the speed measuring device 15 to measure the speed of the vehicle CR. The measured speed is collated with the speed limit stored in the storage unit 193 in the control unit 19, and it is determined whether or not the measured speed exceeds the speed limit.
If it is determined that the speed of the vehicle CR exceeds the speed limit, the vehicle is identified as a “speed violation vehicle”.
When a speed violation vehicle is specified, the polarization camera 11 performs imaging with the speed violation vehicle as an “imaging target”. Step: S14 is a step of performing this imaging.
In addition, since the model of a speed violation vehicle etc. is known from the imaged image, data, such as the inclination of the windshield according to the model, can be read from the storage unit 193 and the imaging condition can be adjusted.
When the imaging process (step: S14) is executed, since the imaging condition is “adjusted according to the environment information”, the captured image is a good image.

The captured image captured in this way is subjected to image processing in the “step of performing image processing” in step S15. This image processing is performed by the image registration unit 192 of the control unit 19.
The captured image captured by the polarization camera 11 is input into the server computer 17, and the image processing is performed by the image processing unit 192 processing “the captured image (data thereof) in the server computer 17”. .
Image processing to be performed can include “density conversion, edge correction, noise removal, image compression”, and the like.
These are mainly performed in order to make the image easy to see in the data processing unit 20, an example of pre-processing for facilitating specific processing, and data amount compression for reducing the amount of transmission data at the time of transmission. .

Step: The captured image that has undergone the “image processing” in S15 is “image information that can identify and transmit the imaging target (speed violation vehicle and its driver, etc.)”. This image information is transmitted to the data processing unit 20 “via the Internet line INT” by the “step of transmitting image information” in step S16.
The data processing unit 20 receives the image information data transmitted from the imaging information processing apparatus (cabin 10-i) in the “step of receiving image information data” shown in step S21 in FIG. 5B. To do.
Then, in the subsequent step: “Step of performing specific processing” in S22, “specific processing” is received.
The data processing unit 20 comprehensively holds information such as the vehicle number of the registered vehicle and information such as the driver's face photo, and collates these held information with the “received image information data”. By doing so, the speed violation vehicle and the “driver identification” are automatically performed.
The identification result (including the case where the identification cannot be performed) is output to a display or the like in the “displaying step” in step S23.

In the embodiment described above, “information stored in advance in the storage unit 193 of the control unit 19” is used as the environment information. However, temporal environment information such as weather actually changes from moment to moment both geographically and temporally, so it is difficult to respond to such changes in environmental information in real time.
On the other hand, the imaging information processing apparatus of the present invention has a transmission unit 17, and the transmission unit 17 is connected to the outside via an Internet line INT.
The weather information at the set geographical location of the cabin 10-i can be supplied from a weather-related website. Therefore, if the transmission unit 17 is set to “bidirectional communication is possible”, weather information can be acquired in real time from a weather-related website together with date information.

In such a case, the storage unit 193 stores the geographical environment information and the basic temporal environment information, and when actually performing the imaging information processing, the date information and the weather information are real-time as described above. Thus, it is possible to adjust the imaging condition by the imaging camera using the acquired information as the temporal environment information, and obtain a “more accurate captured image”.
In such a case, in step S1 in FIG. 5A, the step of acquiring geographical environment information in the storage unit and real-time temporal environment information (weather information etc.) acquired from the outside as environment information; Become.
Further, as described above, the specifying process in the data processing unit 20 displays the image information sent from the imaging information processing apparatus on the display as a “viewable image”, and “views” this to perform the specifying work. It can be carried out.
In this way, when a specific process is visually performed by a person, the “specific processing” in step S22 in FIG. 5B is omitted, and the data received in step S21 is defined as “image to be specified”. You may make it display on a display.

In the embodiment described above, the data processing unit 20 receives data transmitted from the imaging information processing apparatus, and performs specific processing based on the received data.
However, as the “captured image processing system”, it is also possible to perform specific processing on the captured image processing apparatus side.
In this case, the control unit 19 may have a “specific function”.
The captured image processing apparatus 10 captures an imaging target and obtains a captured image.
Then, “data necessary for specifying the imaging target” in the captured image is acquired from the data processing unit 20 by the transmission unit (server computer 17) capable of bidirectional communication.

Since the data processing unit 20 comprehensively holds “information such as the vehicle number of the registered vehicle and driver's face photo” as described above, the server computer 17 uses these information as data. Get by.
Then, after “image processing” is performed on the captured image captured by the polarization camera 11, the specific processing is performed by comparing with the data acquired from the data processing unit 20 side. When the imaging target is specified, the imaging target data is transmitted to the data processing unit 20.
The data processing unit 20 receives the transmitted data and displays the obtained data on the display.
A flow chart in this case is shown in FIG. 2A shows the flow of processing in the captured image processing apparatus 10, and FIG. 2B shows the flow of processing in the data processing unit 20.

Steps in FIG. 6 (a): S11 to S14 are the same as the steps shown in FIG. 5 (a).
Step: The image processing performed in S15 performs “density conversion, edge correction, and noise removal”, but image compression is not performed in this step: S15.
That is, the “specific processing” performed in step S31 is performed using a non-compressed captured image. In step S15, “image compression” of the captured image specified after the specifying process is performed.
Then, the compressed image and the specified data (vehicle number and driver information) are transmitted to the data processing unit 20 (step: S32).
In this way, since the data processing unit 20 does not need to perform a specific process, as shown in FIG. 6B, the display process (step: S23) displays the data received in step: S21 as it is. ) Can be performed.
In such a case, if a specific process is performed after temporarily storing an image captured by the polarization camera 11 in the storage unit 193 in the control unit 19, it is possible to deal with a case where a speed violation vehicle continuously arrives.

  In this case, the data processing unit 20 may display the specific result according to the flow of FIG.

Note that when the imaging target is specified by the imaging information processing apparatus, “data necessary for identification” may be stored in the storage unit 193. When the “data amount necessary for identification” is enormous, a part of the data is stored in the storage unit 193, and the data stored in the storage unit 193 is collated with the captured image to obtain “stored data “Specify by range”.
When the imaging target can be specified in the imaging information processing apparatus, data transmission to the data processing unit 20 is performed in accordance with “data transmission” in step S32 of FIG. At this time, the captured image serving as the image information is “compressed”.
In the case of an imaging target that cannot be specified, the image information of the captured image is transmitted to the data processing unit 20. Then, the data processing unit 20 executes the specifying process and the display according to the flowchart of FIG.

  As described above, according to the present invention, the following imaging information processing apparatus and captured image processing system can be realized.

[1]
An imaging information processing apparatus 10 that captures an imaging target and uses the captured image as image information that can be specified and transmitted, and includes a control unit 19 and at least a part behind the transparent plate FR An imaging camera 11 that captures the imaging targets CR and DR, and an image information processing unit 192 that uses the captured image captured by the imaging camera as image information that can be specified and transmitted. A transmission unit 17 that transmits image information that has been processed and transmitted by the image information processing unit, and the control unit 19 includes the imaging camera 11, the image information processing unit 192, and the transmission. An imaging information processing apparatus that controls the unit 17 and adjusts imaging conditions by the imaging camera 11 according to imaging environment information.

[2]
[1] The imaging information processing apparatus according to [1], in which the control unit 19 stores imaging environment information corresponding to a plurality of imaging environments, and sets imaging conditions of the imaging camera 11 based on imaging environment information at the time of imaging. An imaging information processing apparatus.

[3]
The imaging information processing apparatus according to [1] or [2], wherein the transmission unit 17 can receive information from the outside, and the control unit 19 controls the transmission unit 17 to obtain imaging environment information from the outside. An imaging information processing apparatus that acquires and sets imaging conditions of the imaging camera 11 based on the acquired imaging environment information.

[4]
The imaging information processing apparatus according to any one of [1] to [3], wherein the imaging information processing apparatus includes an illumination device 13 that illuminates an imaging target, and the illumination device is controlled by a control unit 19.

[5]
The imaging information processing apparatus according to any one of [1] to [4], wherein the imaging information processing apparatus is installed at a fixed position in space, and the environmental information is environmental information at the fixed position.

[6]
The imaging information processing apparatus according to any one of [1] to [5], wherein the imaging target is a vehicle CR and a driver DR thereof, and is controlled by the control unit 19 to detect a moving speed of the imaging target. An imaging information processing apparatus having a speed detection unit 15, wherein the control unit 19 performs imaging by the imaging camera 11 when the moving speed detected by the speed detection unit 15 exceeds a threshold value.

[7]
The imaging information processing apparatus according to any one of [1] to [6], wherein the imaging camera 11 is a “polarization camera”, and the control unit 19 determines an exposure amount of the polarization camera 11 according to imaging environment information. An imaging information processing apparatus for adjusting and setting.

[8]
The imaging information processing apparatus according to any one of [1] to [7], wherein the control unit 19 “identifies an imaging target” based on a captured image captured by the imaging camera 11.

[9]
The imaging information processing apparatus according to any one of [1] to [8], wherein a part of the environmental information can be introduced from the outside via the Internet line INT by the transmission unit 17, and the control unit 19 An imaging information processing apparatus that adjusts imaging conditions by the imaging camera 11 using environment information introduced from outside.

[10]
., 10-i, and a data processing unit 20 for receiving image information from the imaging information processing apparatus, and the imaging information processing apparatus An imaging information processing system that identifies an imaged object to be imaged and displays on the data processing unit 20, and uses the imaging information processing system according to any one of claims 1 to 9 as an imaging information processing apparatus .

The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments described above, and the invention described in the claims unless otherwise specified in the above description. Various modifications and changes are possible within the scope of the above.
For example, an appropriate sensor may be provided in the imaging information processing apparatus (cabin), and temporal environment information (such as weather information) may be obtained by this sensor.

  Further, by arranging a plurality of cabins, it is possible to use the optimum one among the captured images obtained in each cabin for specifying the imaging target.

  In the “speed measurement device” described above, “a device that uses the Doppler effect of light or a laser radar that uses laser light” is exemplified. Things "can also be used.

  In addition, the speed measuring device 15 is unnecessary if the speed of the imaging target need not be detected depending on the use of the imaging information processing system, and if the system is not used at night, the lighting device 11 is also unnecessary. is there.

  The effects described in the embodiments of the present invention are merely a list of suitable effects resulting from the invention, and the effects of the present invention are not limited to those described in the embodiments.

  Further, as “in-vehicle identification information” for identifying the driver mentioned above, in addition to the driver's captured image, a passenger's person image, a figurine placed in the vehicle, and the like can be used effectively.

10 Imaging information processing device
11 Polarization camera as an imaging camera
12 Lighting equipment
15 Speed measuring device
17 Server computer as transmitter
19 Control unit
20 Data processing section
10-i Cabin as an imaging information processing device
Vehicles subject to CR imaging
RD road
DR driver
FR Windshield as a transparent plate

JP 2011-002718 A JP 2011-150686 A JP 2010-204059 A

Claims (10)

An imaging information processing apparatus that images an imaging target and uses the captured image as image information that can identify and transmit the imaging target,
A control unit;
An imaging camera for imaging an imaging target at least partially behind the transparent plate;
An image information processing unit that uses the captured image of the imaging target captured by the imaging camera as image information that can be specified and transmitted;
A transmission unit that transmits image information that has been processed and transmitted by the image information processing unit, and
The said control part is an imaging information processing apparatus which controls the said imaging camera, the said image information processing part, and the said transmission part, and adjusts the imaging conditions by the said imaging camera according to imaging environment information. The imaging information processing apparatus according to claim 1,
An imaging information processing apparatus in which a control unit stores imaging environment information corresponding to a plurality of imaging environments, and sets imaging conditions of the imaging camera based on imaging environment information at the time of imaging. The imaging information processing apparatus according to claim 1 or 2,
The transmitter can receive information from the outside,
The control unit is an imaging information processing apparatus that controls the transmission unit to acquire imaging environment information from the outside, and sets imaging conditions of the imaging camera based on the acquired imaging environment information. The imaging information processing apparatus according to any one of claims 1 to 3,
An imaging information processing apparatus having an illumination device that illuminates an imaging target, the illumination device being controlled by a control unit. The imaging information processing apparatus according to claim 1,
An imaging information processing apparatus that is installed at a fixed position in space and whose environmental information is environmental information at the fixed position. The imaging information processing apparatus according to any one of claims 1 to 5,
The imaging object is a vehicle and its driver,
A speed detection unit that is controlled by the control unit to detect the moving speed of the imaging target;
The said control part is an imaging information processing apparatus which images with an imaging camera, when the moving speed detected by the speed detection part exceeds a threshold value. The imaging information processing apparatus according to any one of claims 1 to 6,
An imaging information processing apparatus, wherein the imaging camera is a polarization camera, and the control unit adjusts and sets an exposure amount of the polarization camera according to imaging environment information. The imaging information processing apparatus according to any one of claims 1 to 7,
An imaging information processing apparatus in which a control unit specifies an imaging target based on a captured image captured by an imaging camera. The imaging information processing apparatus according to any one of claims 1 to 8,
A part of the environmental information can be introduced from the outside through the Internet line by the transmission unit, and the control unit also uses the environmental information introduced from the outside to adjust the imaging condition by the imaging camera. apparatus.   One or more imaging information processing apparatuses and a data processing unit that receives image information from the imaging information processing apparatus are specified, and an imaging target imaged by the imaging information processing apparatus is specified and displayed in the data processing unit An imaging information processing system using the apparatus according to any one of claims 1 to 9 as an imaging information processing apparatus.

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