JP2023126254A - Imaging information storage device, imaging information storage method and program - Google Patents

Abstract

To provide an imaging information storage device, an imaging information storage method and a program which can increase an imaging information amount within a predetermined range from a temporary stop position while appropriately suppressing storage capacity of imaging information.SOLUTION: An imaging information storage device 1 comprises an imaging information generation unit 31, a storage unit 8, a position information acquisition unit 51 and a frame rate control unit 33. The imaging information generation unit 31 generates picked up imaging information at predetermined frame rate. The storage unit 8 stores the imaging information. The position information acquisition unit 51 acquires position information showing a position of the device. A stop position acquisition unit acquires stop position information showing a temporary stop position. The frame rate control unit 33 determines whether or not the device 1 is located within a predetermined range from the temporary stop position on the basis of distance from the temporary stop position to the position of the device. The imaging information is generated at high frame rate higher than the predetermined frame rate when it is determined that the device 1 is located within the predetermined range.SELECTED DRAWING: Figure 1

Description

The present invention relates to an imaging information storage device, an imaging information storage method, and a program.

Patent Document 1 listed below discloses a drive recorder. In this drive recorder, the video from the camera is always written into the memory, and the latest short video is stored (recorded) as image data. On the other hand, when an acceleration of a certain level or higher is detected in the vehicle due to an accident, sudden braking, sudden steering, etc., the drive recorder stores video image data at the maximum frame rate.

Japanese Patent Application Publication No. 2012-70217

By the way, the image data from the drive recorder that shows whether the vehicle has stopped at a temporary stopping point such as an intersection, railroad crossing, crosswalk, etc. is important information for managers to evaluate the driver's driving, understand the situation at the time of an accident, etc. It is.
However, in a drive recorder, if the frame rate for storing video is set high, important information can be stored without missing, but if the frame rate is always set high, the storage capacity of image data increases. Resulting in. This is cited as an example of the problem to be solved by the invention.

The present invention has been made in view of the above problems, and provides an imaging information storage device and an imaging information storage device capable of increasing the amount of imaging information within a predetermined range from a pause position while appropriately suppressing the storage capacity of imaging information. An information storage method and program are provided.

The invention according to claim 1 provides an imaging information storage device that includes an imaging information generation section that generates captured imaging information at a predetermined frame rate, and a storage section that stores the imaging information generated by the imaging information generation section. a position information acquisition unit that acquires position information indicating the position of the device; a stop position acquisition unit that acquires stop position information indicating a temporary stop position; to determine whether the device exists within a predetermined range from the pause position, and when it is determined that the device exists within the predetermined range, a high frame rate higher than the predetermined frame rate is determined. and a frame rate control unit that generates the imaging information.

The invention according to claim 5 provides an imaging information storage device including: an imaging information generation unit that generates captured imaging information at a predetermined frame rate; and an imaging information generation unit that generates the imaging information generated by the imaging information generation unit at the predetermined frame rate. an imaging information processing unit that converts to a low frame rate that is lower than that of the imaging information processing unit; a storage unit that stores the imaging information generated by the imaging information processing unit; and a positional information acquisition unit that acquires positional information indicating the position of the device. a stop position acquisition unit that acquires stop position information indicating a temporary stop position; and a stop position acquisition unit that acquires stop position information indicating a temporary stop position, and whether the device exists within a predetermined range from the temporary stop position based on the distance from the temporary stop position to the position of the device. and when it is determined that the device is present within the predetermined range, the imaging information processing section generates the imaging information at the predetermined frame rate, and stores this imaging information in the storage section. It includes a frame rate control section.

The invention according to claim 6 is an imaging information storage method in an imaging information storage device comprising an imaging information generation section, a storage section, a position information acquisition section, a stop position acquisition section, and a frame rate control section, an imaging information generation step in which the generation unit generates captured imaging information at a predetermined frame rate; a storage step in which the storage unit stores the imaging information generated in the imaging information generation step; and a storage step in which the position information acquisition is performed. a position information acquisition step in which the unit acquires position information indicating a position of the imaging information storage device; a stop position acquisition step in which the stop position acquisition unit acquires stop position information indicating a temporary stop position; The control unit determines whether or not the imaging information storage device exists within a predetermined range from the pause position based on the distance from the pause position to the position of the device, and determines whether the imaging information storage device exists within the predetermined range. and a frame rate control step of generating the imaging information at a high frame rate higher than the predetermined frame rate when it is determined that the imaging information storage device exists.

The invention according to claim 7 is a method for causing a computer to execute an imaging information storage method in an imaging information storage device including an imaging information generation section, a storage section, a position information acquisition section, a stop position acquisition section, and a frame rate control section. The program includes a step in which the imaging information generation section generates captured imaging information at a predetermined frame rate, and a step in which the storage section stores the imaging information generated by the imaging information generation section. a step in which the position information acquisition unit acquires position information indicating a position of the image pickup information storage device; a stop position acquisition step in which the stop position acquisition unit acquires stop position information indicating a temporary stop position; The rate control unit determines whether or not the imaging information storage device exists within a predetermined range from the pause position based on the distance from the pause position to the position of the device, and determines whether or not the imaging information storage device exists within the predetermined range. and generating the image information at a high frame rate that is higher than the predetermined frame rate when it is determined that the image information storage device is present.

FIG. 1 is a block diagram of an imaging information storage device according to a first embodiment of the present invention. FIG. 2 is an example of a road intersection that explains the positional relationship between the temporary stop position and the position of the imaging information storage device in the imaging information storage method of the imaging information storage device shown in FIG. 1 and a program for executing the method. It is a schematic diagram seen from above. FIG. 3 shows a road viewed from the side, which explains the positional relationship between the temporary stop position and the position of the image information storage device in the image information storage method of the image information storage device shown in FIG. 1 and the program for executing the method. This is a schematic diagram. FIG. 4 is a flowchart of the imaging information storage method of the imaging information storage device shown in FIG. 1 and a program for executing the method. FIG. 5 is a block diagram of an imaging information storage device according to a second embodiment of the present invention.

The imaging information storage device according to the first embodiment of the present invention includes: an imaging information generation section that generates captured imaging information at a predetermined frame rate; a storage section that stores the imaging information generated by the imaging information generation section; A location information acquisition unit that acquires the location information of the device, and whether or not the device exists within a predetermined range from the pause position based on the map information having the stop position information of the pause position and the location information. and a frame rate control unit that generates imaging information at a high frame rate higher than a predetermined frame rate when it is determined that the device is present within a predetermined range.

The imaging information storage device according to the first embodiment includes an imaging information generation section, a storage section, and a position information acquisition section.
The imaging information generation unit generates imaging information of the captured image at a predetermined frame rate. The storage section stores the imaging information generated by the imaging information generation section. The position information acquisition unit acquires position information of the device.
Here, the imaging information storage device further includes a frame rate control section. The frame rate control unit determines whether or not the device exists within a predetermined range from the pause position, based on map information having stop position information of the pause position and position information of the device. Then, when it is determined that the device is present within a predetermined range, the frame rate control unit generates imaging information at a high frame rate higher than the predetermined frame rate.
Therefore, when exceeding a predetermined range from the temporary stop position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. Imaging information can be increased. Therefore, it is possible to provide an imaging information storage device that can increase the amount of imaging information within a predetermined range from the temporary stop position while appropriately suppressing the storage capacity of imaging information.

In the imaging information storage device according to the first embodiment, the imaging information storage device according to the second embodiment of the present invention performs a map matching process for correcting a shift in the positional information acquired by the location information acquisition unit based on map information. It also has a section.

The imaging information storage device according to the second embodiment includes a map matching processing section. The map matching processing section corrects the deviation of the position information acquired by the position information acquisition section based on the map information.
Therefore, in the imaging information storage device, the position information and the map information can be matched, so the accuracy of the pause position, the accuracy of calculating a predetermined range from this pause position, and the positional accuracy of the imaging information storage device can be improved. can be improved.

In the imaging information storage device according to the third embodiment of the present invention, in the imaging information storage device according to the first embodiment or the second embodiment, the imaging information generation unit generates a plurality of types of captured imaging information in a predetermined frame. The storage unit stores multiple types of imaging information generated by the imaging information generation unit, and the frame rate control unit controls the high frame rate when it is determined that the device is within a predetermined range. multiple types of imaging information are generated.

In the imaging information storage device according to the third embodiment, the imaging information generation unit generates a plurality of types of captured imaging information at a predetermined frame rate. The storage unit stores multiple types of imaging information generated by the imaging information generation unit. The frame rate control unit generates multiple types of imaging information at a high frame rate when it is determined that the imaging information storage device exists within a predetermined range.
Therefore, multiple types of imaging information are generated at the same high frame rate within a predetermined range from the pause position, and are generated at the same predetermined frame rate beyond the predetermined range. Therefore, when a plurality of types of imaging information are played back at the same time, playback lag does not occur, so it is possible to reduce the sense of discomfort experienced by the user who views the video reproduced from the imaging information.

In the imaging information storage device according to the fourth embodiment of the present invention, in the imaging information storage device according to the third embodiment, the imaging information generation unit generates outdoor imaging information in which the exterior of the vehicle is imaged, and outdoor imaging information in which the interior of the vehicle is imaged. A plurality of types of imaging information including indoor imaging information are generated at a predetermined frame rate.

In the imaging information storage device according to the fourth embodiment, the imaging information generation unit generates multiple types of imaging information including outdoor imaging information in which the exterior of the vehicle is captured and indoor imaging information in which the interior of the vehicle is captured.
For this reason, on roads leading to positions beyond a predetermined range, positions within a predetermined range, and temporary stop positions within a predetermined range, outdoor image information such as road conditions, surrounding environmental conditions, etc. It is possible to simultaneously store indoor imaging information such as facial expressions, safety confirmation actions, and health conditions.

An imaging information storage device according to a fifth embodiment of the present invention includes an imaging information generation section that generates captured imaging information at a predetermined frame rate, and a comparison of the imaging information generated by the imaging information generation section with the predetermined frame rate. an imaging information processing unit that converts to a low frame rate, a storage unit that stores imaging information generated by the imaging information processing unit, a positional information acquisition unit that acquires positional information of the device, and a stop position of a temporary stop position. Based on map information and position information, it is determined whether the device exists within a predetermined range from the temporary stop position, and when it is determined that the device exists within the predetermined range, image capture is performed. The information processing unit includes a frame rate control unit that generates imaging information at a predetermined frame rate in the information processing unit and stores this imaging information in the storage unit.

The imaging information storage device according to the fifth embodiment includes an imaging information generation section, an imaging information processing section, a storage section, and a position information acquisition section.
The imaging information generation unit generates imaging information of the captured image at a predetermined frame rate. The imaging information processing section converts the imaging information generated by the imaging information generation section into a low frame rate that is lower than a predetermined frame rate. The storage unit stores imaging information generated by the imaging information processing unit. The position information acquisition unit acquires position information of the device.
Here, the imaging information storage device further includes a frame rate control section. The frame rate control unit determines whether or not the device exists within a predetermined range from the temporary stop position, based on the map information having the stop position information of the temporary stop position and the position information. Then, when it is determined that the device is present within a predetermined range, the frame rate control section generates imaging information at a predetermined frame rate in the imaging information processing section, and stores the imaging information in the storage section.
Therefore, when the predetermined range is exceeded from the pause position, imaging information is generated at a low frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range from the pause position, imaging information is generated at a predetermined frame rate that is higher than a low frame rate, and this imaging information is stored. Imaging information can be increased. Therefore, it is possible to provide an imaging information storage device that can increase the amount of imaging information within a predetermined range from the temporary stop position while appropriately suppressing the storage capacity of imaging information.
Further, in the imaging information generation section, imaging information is generated at a predetermined frame rate higher than the low frame rate until the imaging information is converted to a low frame rate in the imaging information processing section. Therefore, the imaging information storage device can use imaging information with a large amount of imaging information before being converted to a low frame rate.

The imaging information storage method according to the sixth embodiment of the present invention includes the steps of generating imaging information captured at a predetermined frame rate, storing the imaging information, and acquiring position information of the imaging information storage device. , based on the map information having the stop position information of the pause position and the position information, it is determined whether or not there is an imaging information storage device within a predetermined range from the pause position, and the imaging information is stored within the predetermined range. The method includes the step of generating imaging information at a high frame rate higher than a predetermined frame rate when it is determined that the storage device exists.

In the imaging information storage method according to the sixth embodiment, imaging information captured at a predetermined frame rate is generated, and the imaging information is stored. Meanwhile, position information of the imaging information storage device is acquired. Then, based on the map information having the stop position information of the temporary stop position and the position information, it is determined whether the imaging information storage device exists within a predetermined range from the temporary stop position. When it is determined that the imaging information storage device exists within the predetermined range, imaging information is generated at a high frame rate higher than the predetermined frame rate.
Therefore, when exceeding a predetermined range from the pause position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. Imaging information can be increased. Therefore, it is possible to provide an imaging information storage method that can increase the amount of imaging information within a predetermined range from the temporary stop position while appropriately suppressing the storage capacity of imaging information.

A program according to a seventh embodiment of the present invention is a program for causing a computer to execute an imaging information storage method in an imaging information storage device including an imaging information generation section, a storage section, a position information acquisition section, and a frame rate control section. The imaging information generation section generates captured imaging information at a predetermined frame rate, the storage section stores the imaging information generated by the imaging information generation section, and the position information acquisition section includes: A step of acquiring position information of the imaging information storage device, and a frame rate control unit storing the imaging information within a predetermined range from the pause position based on the map information having the stop position information of the pause position and the position information. determining whether or not the device exists, and generating imaging information at a high frame rate higher than a predetermined frame rate when it is determined that the imaging information storage device exists within a predetermined range. There is.

In the program according to the seventh embodiment, the imaging information generation section generates the imaging information taken at a predetermined frame rate, and the storage section stores the imaging information generated by the imaging information generation section. On the other hand, a position information acquisition unit acquires position information of the imaging information storage device. Then, the frame rate control unit determines whether or not the imaging information storage device exists within a predetermined range from the temporary stop position, based on the map information having the stop position information of the temporary stop position and the position information. In the frame rate control section, when it is determined that the imaging information storage device exists within a predetermined range, imaging information is generated at a high frame rate higher than the predetermined frame rate.
Therefore, when exceeding a predetermined range from the pause position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. Imaging information can be increased. Therefore, it is possible to provide a program that can increase the amount of imaged information within a predetermined range from the temporary stop position while appropriately suppressing the storage capacity of the imaged information.

[First example]
Hereinafter, an imaging information storage device 1, an imaging information storage method, and a program for causing a computer to execute the method according to the first embodiment will be explained using FIGS. 1 to 4.
In addition, in the figure, an arrow FR shown as appropriate indicates the forward direction of the vehicle, which is an example of a regular car, and an arrow W indicates the width direction of the vehicle. Further, the arrow UP indicates the upper direction of the vehicle. These directions are used for convenience in explaining the embodiments, and do not limit the directions in the present invention.

(Configuration of imaging information storage device 1 and imaging information storage system 100)
As shown in FIG. 1, the imaged information storage device 1 includes a drive recorder section 3 as a main part, and is configured to store imaged information obtained by capturing images of the outside of the vehicle and the inside of the vehicle while the vehicle is stopped or running. There is. In other words, the imaging information storage device 1 is configured to record images of the outside of the vehicle and the inside of the vehicle.
Note that, as a vehicle, a regular car will be described here as an example. In this embodiment, the vehicles include at least a bus, a truck, a two-wheeled vehicle, and a bicycle.
The imaging information storage device 1 further includes an interface section 2, a temporary stop position recognition section 4, a map application section 5, a central processing unit (CPU) 6 as a computer, a first storage section 7, and a second storage section. 8. The components such as the interface unit 2 that construct the imaging information storage device 1 are electrically connected to each other through a common bus 9.
Further, the imaging information storage device 1 includes an imaging device 10 as an external device, and the imaging information storage device 1 and the imaging device 10 constitute an imaging information storage system 100.
Each component of the imaging information storage system 100 will be described below.

(Configuration of imaging device 10)
As shown in FIG. 1, the imaging device 10 includes a camera 11 for outside the vehicle interior (outer camera) and a camera 12 for the interior of the vehicle interior (inner camera). The vehicle exterior camera 11 is mounted toward the front of the vehicle, for example, at a position close to a front window glass inside the vehicle interior, captures images in front of the vehicle, and generates outdoor image information based on the captured images. The vehicle interior camera 12 is mounted toward the rear of the vehicle, for example, at the same position as the vehicle exterior camera 11, captures images of the interior of the vehicle, and generates interior image information based on the captured images. In addition, in the embodiment, outdoor imaging information and indoor imaging information may be collectively referred to simply as "imaging information".
Both the vehicle exterior camera 11 and the vehicle interior camera 12 are configured using, for example, a two-dimensional image sensor as a main imaging device. For example, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor can be practically used as the two-dimensional image sensor.
In this embodiment, two cameras, an exterior camera 11 and an interior camera 12, are attached to the vehicle, but only the exterior camera 11 may be attached to the vehicle. In this embodiment, in addition to the vehicle exterior camera 11 and the vehicle interior camera 12, a back camera is used as an exterior camera that captures images of the rear of the vehicle, and a camera that is used as an exterior camera that captures images of the side and rear sides of the vehicle. At least one of the side and back cameras may be provided.

(Configuration of imaging information storage device 1)
(1) Configuration of Interface Section 2 The interface section 2 is connected to each of the vehicle exterior camera 11 and the vehicle interior camera 12, and is further connected to the common bus 9 of the imaging information storage device 1. The interface section 2 can take in the imaging information generated by the vehicle exterior camera 11 and the vehicle interior camera 12 into the imaging information storage device 1 .

(2) Configuration of drive recorder section 3 The drive recorder section 3 includes an imaging information generation section 31 and a recording section 32. The drive recorder section 3 further includes a frame rate control section 33, which will be explained in detail later.
The imaging information generating section 31 generates imaging information at a predetermined frame rate based on the imaging information transmitted from the exterior camera 11 and the interior camera 12 through the interface section 2 and the common bus 9, respectively. Here, the predetermined frame rate is set to, for example, 1 FPS (Frames Per Second), and the storage capacity of imaging information is appropriately suppressed.
The recording unit 32 sequentially transmits the imaging information generated by the imaging information generating unit 31 to the second storage unit 8 via the common bus 9. In the second storage section 8 , the imaging information transmitted from the recording section 32 is stored in the imaging information storage section 81 .

(3) Configuration of temporary stop position recognition unit 4 The temporary stop position recognition unit 4 includes an imaging information analysis unit 41 and a stop position detection unit 42. The imaging information analysis unit 41 analyzes whether or not a “temporary stop position” exists based on the imaging information on the front side of the vehicle transmitted from the vehicle exterior camera 11 through the interface unit 2 and the common bus 9. do. The stop position detection section 42 determines whether or not a "temporary stop position" exists based on the analysis result of the imaging information analysis section 41.
In this embodiment, the temporary stop position recognition unit 4 generates images of ``regulatory signs (road signs) that inform passengers of the upcoming temporary stop position (stop line)'' and ``stop lines where temporary stopping is mandatory.'' The system is configured to recognize the existence of a "temporary stop position" based on the analysis results.

Here, as shown in FIG. 2, the intersection of the road R1 extending vertically on the page and the road R2 extending horizontally on the page is generally considered to be a "road intersection without a traffic light." The road R1 is a "subordinate road" and has a driving lane L1 in which the host vehicle V travels, and an opposite lane L2 that extends parallel to and adjacent to this driving lane L1. Road R2 is a "priority road" and has a driving lane L3 in which the host vehicle V travels when turning right, and an opposite lane L4 that extends parallel to and adjacent to this driving lane L3. Note that on the road R2, when the host vehicle V turns left, the opposite lane L4 becomes the driving lane L5, and the driving lane L3 becomes the opposite lane L6.
On the left side of the road in the driving lane L1 in which the host vehicle V travels from below to above, a regulation sign TS1 indicating a "temporary stop position" with "Stop" displayed before a road intersection is installed. Furthermore, a stop line TS3 is displayed beyond the regulation sign TS1 in the driving lane L1. Similarly, a regulation sign TS2 that is the same as the regulation sign TS1 is installed on the right side of the road in the opposite lane L2 (the left side of the road when viewed from a vehicle traveling from above to below), and a regulation sign TS2 that is the same as the regulation sign TS1 is installed on the opposite lane L2. A stop line TS4 is displayed.
The temporary stop position recognition unit 4 is configured to also recognize ``temporary stop positions'' such as ``warning signs indicating that there is a railroad crossing ahead'' and ``instruction signs indicating that there is a crosswalk at the position of the sign.'' has been done.

As shown in FIG. 3, it is assumed that the host vehicle V is traveling in the driving lane L1 of the road R1 toward the road intersection shown in FIG. 2. At this time, the imaging information generated by the vehicle exterior camera 11 (see FIG. 1) of the imaging information storage system 100 mounted on the own vehicle V is based on the regulation sign TS1 depending on the distance from the position where the regulation sign TS1 is installed. Differences occur in the size of the label TS1. Similarly, in the imaging information, the size of the stop line TS3 also varies depending on the distance from the position where the stop line TS3 is provided. Furthermore, in the regulation sign TS1, in addition to the outline size of the sign plate, there is a difference in the size of the displayed characters, symbols, etc. indicating the content of regulations.
Here, the difference in size of the regulation sign TS1 will be explained. In the regulation sign TS1, when viewed from the passenger of the host vehicle V (in front view), a sign plate formed in an inverted triangular shape displays the regulation content in the words "Stop". As the distance from the installation position of the regulation sign TS1 becomes longer, the width and height h of the sign plate of the regulation sign TS1 will change according to the image information captured by the vehicle exterior camera 11. The dimensions become smaller. Conversely, as the distance from the installation position of the regulation sign TS1 becomes shorter, the width and height dimensions in the imaging information become larger.
Generally, the width dimension of stop line TS3 (front and back dimension as seen from the passenger) is 30 cm to 45 cm, and stop line TS3 is set 20 cm to 70 cm ahead of the installation position of regulation sign TS1. . The image information of the stop line TS3 is imaged from the host vehicle V approaching the stop line TS3, and therefore is generated by being imaged diagonally downward toward the front of the vehicle. For this reason, the ratio of the change in the width dimension to the change in distance is smaller than the imaging information obtained by imaging the stop line TS3 from directly above, so it is possible to accurately recognize the difference in the width dimension of the stop line TS3 from the imaging information. is difficult. Therefore, the temporary stop position recognition unit 4 is configured to not recognize the size of the stop line TS3, but merely recognize the existence of the stop line TS3.

Based on the imaging information that has been image-analyzed by the imaging information analysis unit 41 shown in FIG. It is set as a "predetermined range L" from the "temporary stop position" shown. The "predetermined range L" here means a "predetermined distance." In this embodiment, the "predetermined range L" is set to a total of 20 m, including 10 m in front of the stop line TS3, which is the "temporary stop position", and 10 m beyond the stop line TS3. As long as the vehicle is within a range of 20 m before and after the "pause position," it is possible to reliably determine whether or not the vehicle has made a temporary stop at the "pause position."

Furthermore, the relationship between the speed and stopping distance of a regular car is generally approximately 13 m at 30 km/h, approximately 20 m at 40 km/h, approximately 28 m at 50 km/h, and approximately 37 m at 60 km/h. has been done. The stopping distance is a value obtained by adding the braking distance to the free running distance. Therefore, if you want to stop the vehicle 10 meters before the "temporary stop position", you need to drive at a speed of 20 km/h or less.
At a speed of 20 km/h, vehicle V travels approximately 5.6 m per second. If there is a distance of 10 m before the "pause position", that is, within the "predetermined range L", the pause position recognition unit 4 at least once at a predetermined frame rate (1 FPS in this case) The existence of a "temporary stop position" can be recognized.

Therefore, the stop position detection unit 42 is set to recognize the presence of the regulation sign TS1 when the imaging information storage system 100 is located at a position P2 that corresponds to the "predetermined range L" from the position where the stop line TS3 is provided. has been done. At this time, at position P2, the imaging information storage system 100 recognizes the regulation sign TS12 as the regulation sign TS1, recognizes the existence of the regulation sign TS1, and recognizes the existence of the stop line TS3.
In other words, the stop position detection unit 42 is configured to recognize the existence of the regulation sign TS1 and the stop line TS3 at the stage of detecting the width w2 and height h2 of the regulation sign TS12 at the position P2. ing. When the presence of the regulation sign TS1 and the stop line TS3 is recognized and the "temporary stop position" is recognized, the stop position detection section 42 outputs a "frame rate control signal FCS1" to the frame rate control section 33 via the common bus 9. .

When the "predetermined range L" is exceeded, for example, when the imaging information storage system 100 is present at the position P1, the regulation sign TS11 having the width dimension w1 and the height dimension h1 is imaged. However, since the size of the regulation sign TS11 is small, the stop position detection unit 42 does not recognize the existence of the regulation sign TS1 and the stop line TS3.
The temporary stop position recognition unit 4 determines the position based on at least one of the width w2 and height h2 of the regulation sign TS12 at the position P2, based on the size of characters and symbols, or based on the size of both. The existence of a "temporary stop position" may also be recognized.
(4) Configuration of Map Application Unit 5 Returning to FIG. 1, the map application unit 5 includes a position information acquisition unit 51, a map matching processing unit 52, and a stop position approach determination unit 53.
The position information acquisition unit 51 receives signals from a plurality of satellites 55 based on satellite navigation using the Global Positioning System (GPS), and determines the location of the own vehicle V (more precisely, the imaging information storage device 1). Get location information.
The map matching processing section 52 corrects the deviation in the position information of the host vehicle V acquired by the position information acquisition section 51 based on the map information. The map information includes position information of the positions where the stop lines TS3 and TS4 shown in FIG. 2 are provided. This map information is stored in the map information storage section 82 of the second storage section 8 shown in FIG.
As shown in FIG. 2 or 3, based on the position information of the own vehicle V and the position information of the stop line, the stop position approach determination unit 53 determines whether the stop line TS3 is located within a predetermined range, for example, from the position where the stop line TS3 is provided. It is determined whether or not the own vehicle V exists within the "predetermined range L" or within the "predetermined range L." Here, the "predetermined range L" is the same range (threshold value) as the "predetermined range L" in the temporary stop position recognition unit 4, and this threshold value is stored in advance in the stop position approach determination unit 53. When the stop position approach determination unit 53 determines that the own vehicle V is within the predetermined range L, it outputs a “frame rate control signal FCS2” to the frame rate control unit 33 via the common bus 9.

Note that the position information acquisition unit 51 is an autonomous navigation system that acquires information such as vehicle speed, direction, acceleration, etc. from various sensors (not shown) attached to the own vehicle V, and calculates the position information of the own vehicle V from this information. You may also obtain location information by
Additionally, the map information may be acquired from an external server via the Internet via a communication device (not shown).

(5) Configuration of central processing unit 6, first storage section 7, and second storage section 8 As shown in FIG. 1, the central processing unit (computer) 6 is connected to a common bus 9. The operation of each component of the imaging information storage device 1, such as the drive recorder section 3, the temporary stop position recognition section 4, and the map application section 5, is controlled via the image capturing information storage device 1.
The first storage unit 7 includes, for example, a read-only memory circuit (for example, ROM: Read Only Memory) and a write/read memory circuit (for example, RAM: Random Access Memory). The first storage section 7 is connected to a common bus 9. The first storage unit 7 stores programs necessary for controlling the operation of the imaging information storage device 1, and also temporarily stores information being executed by the central processing unit 6.
The second storage section 8 includes an imaging information storage section 81 and a map information storage section 82, and is connected to the common bus 9. The imaging information storage section 81 stores and saves the imaging information output from the recording section 32 of the drive recorder section 3. The map information storage unit 82 stores map information having position information of stop lines, which is output to the map matching processing unit 52 of the map application unit 5. The second storage unit 8 uses a storage device with a large storage capacity, such as a nonvolatile storage device or a hard disk.

(6) Configuration of Frame Rate Control Unit 33 As shown in FIG. 1, the imaging information storage device 1 includes a frame rate control unit 33 as a part of the drive recorder unit 3. The frame rate control section 33 is connected to the common bus 9.
The frame rate control section 33 starts operation based on the frame rate control signal FCS2 output from the stop position approach determination section 53 of the map application section 5. The frame rate control unit 33 uses the stop line TS3 as shown in FIG. It is determined whether the own vehicle V exists within a predetermined range L from the position (temporary stop position). Here, it is determined whether or not the own vehicle V exists within 10 m from the position of the stop line TS3. The map information output from the map information storage section 82 to the map matching processing section 52 is used as the map information. Further, as the position information of the host vehicle V, position information obtained by correcting the deviation of the position information acquired by the position information acquisition unit 51 in the map matching processing unit 52 is used.
When the frame rate control unit 33 determines that the host vehicle V is present within the predetermined range L, the frame rate control unit 33 controls the imaging information generation unit 31 to generate imaging information at a high frame rate higher than the predetermined frame rate. be done. High frame rate is set to 15.5 FPS, for example. Since the imaging information set to this frame rate is not synchronized with the turning off timing of a traffic light that uses an LED (Light Emitting Diode) method, if there is a traffic light at a road intersection, the imaging information that is in the lit state of the traffic light is generated. be able to.

Furthermore, the frame rate control section 33 also starts operation based on the frame rate control signal FCS1 output from the stop position detection section 42 of the temporary stop position recognition section 4 shown in FIG. At this time, as shown in FIG. 3, in the frame rate control unit 33, when the temporary stop position recognition unit 4 recognizes, for example, the regulation sign TS1 (regulation sign TS12) and the stop line TS3, the frame rate control unit 33 is controlled to generate imaging information at a high frame rate. The high frame rate here is set to be the same as the high frame rate controlled based on the frame rate control signal FCS2.

The frame rate control unit 33 generates outdoor image information captured using the vehicle exterior camera 11 at a high frame rate, but in this embodiment, indoor image information captured using the vehicle interior camera 12 is also generated at a high frame rate. generated at the frame rate. Indoor imaging information generated at a high frame rate is synchronized with outdoor imaging information.
Further, the frame rate control unit 33 operates at the timing when either the frame rate control signal FCS1 output from the stop position detection unit 42 or the frame rate control signal FCS2 output from the stop position approach determination unit 53 is input. is set to start. Once the operation is started, either input is canceled.

(Imaging information storage method and program)
An imaging information storage method using the imaging information storage device 1 will be described using FIG. 4 while referring to FIGS. 1 to 3, and a program for executing the imaging information storage method will also be described.

First, the imaging information storage system 100 is activated (step S1). When the imaging information storage system 100 is activated, each of the exterior camera 11 and the interior camera 12 of the imaging device 10 is activated.
The vehicle exterior camera 11 images the front side of the host vehicle V, and this image information (outdoor image information) is transmitted to the drive recorder section 3 in the image information storage device 1 through the interface section 2 and the common bus 9, respectively. On the other hand, the interior camera 12 captures an image of the interior of the own vehicle V, and this image information (interior image information) is similarly transmitted to the drive recorder section 3.

The imaged information generating section 31 of the drive recorder section 3 generates the transmitted imaged information at a predetermined frame rate. The imaging information generated at this predetermined frame rate is transmitted to the second storage unit 8 via the recording unit 32, and the imaging information is stored and saved in the imaging information storage unit 81 of the second storage unit 8.

The temporary stop position recognition unit 4 acquires the imaging information transmitted from the imaging device 10 (step S2). The imaging information acquired here is outdoor imaging information captured using the camera 11 for outside the vehicle interior. The acquired imaging information is analyzed by image analysis in the imaging information analysis section 41 (step S3). The analyzed image information is transmitted to the stop position detection unit 42, and the stop position detection unit 42 recognizes whether or not the regulation sign TS1 and the stop line TS3 are present in front of the host vehicle V (step S4).

As shown in FIG. 3, when the own vehicle V traveling in the driving lane L1 of the road R1 is at a position P1 exceeding a predetermined range L from the position where the stop line TS3 is provided, the width dimension w1 and the height dimension The regulation sign TS11 having h1 is imaged as imaging information. The regulation sign TS11 is image information of the regulation sign TS1 imaged at the position P1. The stop position detection unit 42 does not recognize the regulation sign TS11 as the regulation sign TS1 because the size has not reached the preset size. When the regulation sign TS1 is not recognized, the process returns to step S2.
Further, in the stop position detection unit 42, when the own vehicle V reaches a position P2 within a predetermined range L, a regulation sign TS12 having a width dimension w2 and a height dimension h2 corresponding to a preset size is detected. , it is recognized as the regulation sign TS1 installed on the front side of the vehicle. At this time, the existence of the stop line TS3 ahead of the regulation sign TS1 is recognized at the same time. When the regulation sign TS1 and the stop line TS3 are recognized, the stop position detection section 42 outputs a frame rate control signal FCS1 to the frame rate control section 33.
Here, the position where the stop line TS3 is provided is 20 cm to 70 cm ahead of the installation position of the regulation sign TS1 as described above, so the value is 1/2 of the difference from the installation position of the regulation sign TS1. A "predetermined range L" is set as 45 cm ahead. That is, 10 m before the "predetermined range L" is the distance from the stop line TS3 to the position P2, and the distance from the regulation sign TS1 to the position P2 is 9.55 m.

On the other hand, in the map application section 5, the position information acquisition section 51 acquires the position information of the host vehicle V based on satellite navigation (step S5). When position information is not acquired, position information is acquired again. The location information acquired by the location information acquisition section 51 is transmitted to the map matching processing section 52.
The map matching processing unit 52 acquires map information having positional information of the position where the stop line is provided from the map information storage unit 82 of the second storage unit 8 (step S6). The map matching processing section 52 executes a map matching process, and corrects the deviation in the acquired positional information of the own vehicle V based on the map information (step S7).

The stop position approach determination unit 53 moves from the position where the stop line TS3 is provided to a predetermined distance based on the corrected position information of the own vehicle V and the position information of the stop line in the map information. It is determined whether or not the host vehicle V exists within the range L (step S8). When the own vehicle V is traveling in the driving lane L1 of the road R1 beyond the predetermined range L, the process returns to step S5.
When the stop position approach determination unit 53 determines that the own vehicle V is within a predetermined range L from the position where the stop line TS3 is provided, the stop position approach determination unit 53 causes the frame rate control unit 33 to control the frame rate. Output signal FCS2.

It is determined whether either the frame rate control signal FCS1 output from the stop position detection unit 42 or the frame rate control signal FCS2 output from the stop position approach determination unit 53 is input to the frame rate control unit 33. (Step S9). When it is determined that no input has been made, the process returns to step S2 and step S5.
When it is determined that the frame rate has been input, the frame rate control unit 33 changes the frame rate of the imaging information generation unit 31, and the imaging information generation unit 31 generates imaging information at a high frame rate (step S10). Imaging information at a high frame rate is generated within a predetermined range L, here 10 m before the stop line TS3 and 10 m beyond the stop line TS3, for a total of 20 m. This generated imaging information is stored and saved in the imaging information storage section 81 of the second storage section 8 (step S11).

Next, it is determined whether or not to end the operation of the imaging information storage system 100 (step S12). When it is determined that the operation is not to be ended, the process returns to step S2 and step S5. When it is determined to end the operation, the operation of the imaging information storage system 100 ends, and the imaging information storage method according to this embodiment and the program for executing the method end.

(effect)
The imaging information storage device 1 according to this embodiment includes an imaging information generation section 31, a second storage section (storage section) 8, and a position information acquisition section 51, as shown in FIG.
The imaging information generation unit 31 generates imaging information of a captured image at a predetermined frame rate. The second storage unit 8 stores the imaging information generated by the imaging information generation unit 31. The position information acquisition unit 51 acquires the position information of the imaging information storage device 1 .
Here, the imaging information storage device 1 further includes a frame rate control section 33. The frame rate control unit 33 determines whether the imaging information storage device 1 exists within a predetermined range L from the temporary stop position based on the map information having the stop position information of the temporary stop position and the position information of the imaging information storage device 1. Determine whether or not. The stop position information is the position information of the stop line TS3 and the position information of the stop line TS4 shown in FIG. 2. Then, when it is determined that the imaging information storage device 1 exists within the predetermined range L, the frame rate control unit 33 generates imaging information at a high frame rate higher than the predetermined frame rate. The predetermined frame rate is, for example, 1 FPS. A high frame rate is, for example, 15.5 FPS.
Therefore, when the predetermined range L is exceeded from the temporary stop position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range L from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. The amount of imaging information can be increased. Therefore, it is possible to provide an imaging information storage device 1 that can increase the amount of imaging information within a predetermined range L from the temporary stop position while appropriately suppressing the storage capacity of imaging information.

The imaging information storage device 1 also includes a map matching processing section 52, as shown in FIG. The map matching processing unit 52 corrects the deviation of the position information acquired by the position information acquisition unit 51 based on the map information.
Therefore, in the imaging information storage device 1, the position information and the map information can be matched, so that the accuracy of the temporary stop position, the accuracy of calculating the predetermined range L from this temporary stop position, and the accuracy of the imaging information storage device 1 are improved. Position accuracy can be improved.

Furthermore, in the imaging information storage device 1, as shown in FIG. 1, the imaging information generation unit 31 generates a plurality of types of captured imaging information at a predetermined frame rate. The second storage unit 8 stores multiple types of imaging information generated by the imaging information generation unit 31. Then, when it is determined that the imaging information storage device 1 exists within the predetermined range L, the frame rate control unit 33 generates multiple types of imaging information at a high frame rate.
Therefore, multiple types of imaging information are generated at the same high frame rate within a predetermined range L from the temporary stop position, and are generated at the same predetermined frame rate beyond the predetermined range L. Therefore, when a plurality of types of imaging information are played back at the same time, playback lag does not occur, so it is possible to reduce the sense of discomfort experienced by the user who views the video reproduced from the imaging information.

In addition, in the imaged information storage device 1, as shown in FIG. 1, the imaged information generation unit 31 generates multiple types of imaged information including outdoor imaged information in which the exterior of the vehicle is imaged and indoor imaged information in which the interior of the vehicle is imaged. Generate imaging information.
Therefore, on the road R1 (see Fig. 3) leading to the position P1 exceeding the predetermined range L, the position P2 within the predetermined range L, and the temporary stop position (stop line TS3) within the predetermined range L, the road condition, surrounding Outdoor imaged information such as environmental conditions and indoor imaged information such as facial expressions and health conditions of the occupants of the own vehicle V can be stored simultaneously.

Furthermore, in the imaging information storage method, imaging information captured at a predetermined frame rate is generated by the imaging information generation unit 31, and the imaging information is stored in the second storage unit 8 (see FIG. 1).
On the other hand, as shown in FIGS. 1 and 4, position information of the imaging information storage device 1 is acquired (step S5). Based on the map information having the stop position information of the temporary stop position (stop line) and the position information of the photographic information storage device 1, it is determined whether the photographic information storage device 1 exists within a predetermined range L from the temporary stop position. It is determined whether or not (step S8). When it is determined that the imaging information storage device 1 exists within the predetermined range L, imaging information is generated at a high frame rate higher than the predetermined frame rate (step S10).
Therefore, when the predetermined range L is exceeded from the temporary stop position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range L from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. The amount of imaging information can be increased. Therefore, it is possible to provide an imaging information storage method that can increase the amount of imaging information within a predetermined range L from the temporary stop position while appropriately suppressing the storage capacity of imaging information.

In addition, in the program for executing the imaging information storage method, as shown in FIGS. 1 and 4, the imaging information generation unit 31 generates the captured imaging information at a predetermined frame rate, and the second storage unit 8 The imaging information generated by the imaging information generation unit 31 is stored.
On the other hand, the position information acquisition unit 51 acquires the position information of the imaging information storage device 1 (step S5). Then, the frame rate control unit 33 determines whether the imaging information storage device 1 is within a predetermined range L from the temporary stop position based on the map information having the stop position information of the temporary stop position and the position information of the imaging information storage device 1. It is determined whether it exists (step S8). In the frame rate control unit 33, when it is determined that the imaging information storage device 1 exists within the predetermined range L, imaging information is generated at a high frame rate higher than the predetermined frame rate (step S10).
Therefore, when the predetermined range L is exceeded from the temporary stop position, imaging information is generated at a predetermined frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range L from the pause position, imaging information is generated at a high frame rate higher than the predetermined frame rate, and this imaging information is stored. The amount of imaging information can be increased. Therefore, it is possible to provide a program that can increase the amount of imaged information within the predetermined range L from the temporary stop position while appropriately suppressing the storage capacity of the imaged information.

(Modification 1)
In the imaging information storage device 1, the imaging information storage method, and the program according to the embodiments described above, it is possible to change the control method for continuing the generation of high frame rate imaging information and terminating the generation. To execute this control method, the program for analyzing the imaging information shown in FIG. 4 (step S3) in the imaging information analysis section 41 shown in FIG. 1 is changed.
To explain this control method in detail, the imaging information analysis unit 41 generates imaging information at a high frame rate when the stop position is image recognized, and after a predetermined period of time has elapsed after the stop position cannot be image recognized. Imaging information is generated at a high frame rate until After a predetermined time has elapsed, imaging information is generated at a predetermined frame rate.
The "predetermined time" may be a fixed time, or may be a time that changes depending on the type of sign. For example, the "predetermined time" is set to 10 seconds when a warning sign indicating a railroad crossing is image-recognized, and is set to 20 seconds when a regulatory sign indicating a temporary stop position is image-recognized. .

Furthermore, the control method for continuing and terminating the generation of high frame rate imaging information may use the position information of the stop position of the map information stored in the map information storage unit 82 shown in FIG. good. In this case, imaging information is generated at a high frame rate within a certain range from the positional information of the stop position. The "certain range" may be determined for each location, or may be determined uniformly. The "certain range" may be included in the map information, or may be configured to be set on the imaging information storage device 1 side. The "certain range" is set by taking into consideration factors such as the type of sign, whether there is a railroad crossing, whether visibility is good, whether a two-step stop is required, and whether the intersection is wide or narrow. Ru.

Furthermore, the "certain range" may be defined for links and nodes in the map information. This "certain range" is not limited to one-dimensional distance information, but is defined using a two-dimensional surface (circle, rectangle, etc.) that represents the area where the stop position is installed. Good too.
Further, the direction in which the own vehicle V approaches the stop position may be detected based on the imaging information, position information, etc., and the imaging information may be generated at a high frame rate when the vehicle V approaches from a preset direction.
Furthermore, the "certain range" may be set as a circular surface centered on the temporary stop position.

(Modification 2)
In the imaging information storage device 1, imaging information storage method, and program according to the embodiments described above, generation of imaging information at a high frame rate may end immediately after passing a temporary stop position to be observed. In this case, imaging information indicating whether or not the driver has followed the stop sign can be generated at a high frame rate, and immediately after passing the stop position, imaging information is generated at a predetermined frame rate. , the storage capacity can be further suppressed appropriately.

[Second example]
An imaging information storage device 1, an imaging information storage method, and a program for causing a computer to execute the method according to the second embodiment will be described using FIG. 5.
In this embodiment, the same or substantially the same components as those of the imaging information storage device 1 according to the first embodiment are denoted by the same reference numerals, and redundant explanation will be omitted. The same applies to the steps of the imaging information storage method or program.

(Configuration of imaging information storage device 1 and imaging information storage system 100)
The imaging information storage device 1 according to this embodiment includes an imaging information processing section 34 in the drive recorder section 3, as shown in FIG. Here, the imaging information generating section 31 of the drive recorder section 3 generates imaging information at a predetermined frame rate, and the predetermined frame rate is set to a high frame rate of 15.5 FPS, for example. In the imaging information processing section 34, the imaging information generated in the imaging information generation section 31 is converted to a low frame rate that is lower than a predetermined frame rate. The low frame rate is set to 1 FPS, for example. This converted imaging information is stored and saved in the imaging information storage section 81 of the second storage section 8.

The frame rate control unit 33 maintains a predetermined frame rate when the frame rate control signal FCS1 is output from the stop position detection unit 42 or when the frame rate control signal FCS2 is output from the stop position approach determination unit 53. Imaging information is generated in . This imaging information is stored and saved in the second storage unit 8.

(Imaging information storage method and program)
The imaging information storage method according to the present embodiment and the program for executing this method are similar to the imaging information storage method according to the first embodiment described above using FIG. 4, except that the frame rate setting is reversed. and the program, so the explanation will be omitted.

(effect)
The imaging information storage device 1, the imaging information storage method, and the program for executing this method according to the present embodiment have the effects and effects obtained by the imaging information storage device 1, the imaging information storage method, and the program according to the first embodiment. Similar effects can be obtained.

The imaging information storage device 1 also includes an imaging information generation section 31, an imaging information processing section 34, a second storage section 8, and a position information acquisition section 51, as shown in FIG.
The imaging information generation unit 31 generates imaging information of a captured image at a predetermined frame rate. The predetermined frame rate here is a high frame rate. The imaging information processing section 34 converts the imaging information generated by the imaging information generation section 31 into a low frame rate that is lower than a predetermined frame rate. The second storage unit 8 stores the imaging information generated by the imaging information processing unit 34. The position information acquisition unit 51 acquires position information.
Here, the imaging information storage device 1 further includes a frame rate control section 33. The frame rate control unit 33 determines whether the stop line TS3 shown in FIG. It is determined whether the imaging information storage device 1 exists within a predetermined range L from the provided position. Then, when it is determined that the imaging information storage device 1 exists within the predetermined range L, the frame rate control unit 33 causes the imaging information processing unit 34 to process the imaging information at a predetermined frame rate without converting to a lower frame rate. is generated and the imaging information is stored in the second storage unit 8.
Therefore, when the predetermined range L is exceeded from the temporary stop position, imaging information is generated at a low frame rate and this imaging information is stored, so that the storage capacity of imaging information can be appropriately suppressed. On the other hand, within a predetermined range L from the pause position, imaging information is generated at a predetermined frame rate higher than a low frame rate, and this imaging information is stored. The amount of imaging information can be increased. Therefore, it is possible to provide an imaging information storage device 1 that can increase the amount of imaging information within a predetermined range L from the temporary stop position while appropriately suppressing the storage capacity of imaging information.

Further, in the imaging information storage device 1, the imaging information generation unit 31 generates imaging information at a predetermined frame rate higher than the low frame rate until the imaging information is converted to a low frame rate in the imaging information processing unit 34. Ru. Therefore, the imaging information storage device 1 can use imaging information with a large amount of imaging information before being converted to a low frame rate. For example, if a circuit is installed in the transmission path from the imaging information generation section 31 to the imaging information processing section 34 to temporarily store imaging information serially for several seconds to several tens of seconds, it is possible to trace back the imaging information over time. Frame rate imaging information can be obtained.

[Other Examples]
The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the gist thereof.
For example, in the embodiment described above, the imaging information storage device 1 is constructed with each component such as the drive recorder section 3, the temporary stop position recognition section 4, the map application section 5, and the second storage section 8 as built-in circuits. In the present invention, the imaging information storage device 1 may be constructed by assembling at least one component as an external device.

1 Imaging information storage device 10 Imaging device 11 Vehicle exterior camera 12 Vehicle interior camera 100 Imaging information storage system 2 Interface section 3 Drive recorder section 31 Imaging information generation section 32 Recording section 33 Frame rate control section 34 Imaging information processing section 4 Temporary Stop position recognition unit 41 Imaging information analysis unit 42 Stop position detection unit 5 Map application unit 51 Position information acquisition unit 52 Map matching unit 53 Stop position approach determination unit 6 Central processing unit (computer)
7 First storage unit 8 Second storage unit 81 Imaging information storage unit 82 Map information storage unit 9 Common buses TS1, TS2 Regulation signs TS3, TS4 Stop line V Own vehicle

Claims (7)

an imaging information generation unit that generates captured imaging information at a predetermined frame rate;
a storage unit that stores the imaging information generated by the imaging information generation unit;
a location information acquisition unit that acquires location information indicating the location of the device;
a stop position acquisition unit that acquires stop position information indicating a temporary stop position;
Based on the distance from the temporary stop position to the position of the device, it is determined whether the device exists within a predetermined range from the temporary stop position, and it is determined that the device exists within the predetermined range. a frame rate control unit that generates the imaging information at a high frame rate higher than the predetermined frame rate when
An imaging information storage device comprising: The imaging information storage device according to claim 1, further comprising: a map matching processing section that corrects a shift in the positional information acquired by the positional information acquisition section based on map information. The imaging information generation unit generates a plurality of types of imaging information respectively captured at the predetermined frame rate,
The storage unit stores a plurality of types of the imaging information generated by the imaging information generation unit,
The imaging information storage according to claim 1 or 2, wherein the frame rate control unit generates a plurality of types of the imaging information at the high frame rate when it is determined that the device is within the predetermined range. Device. The imaging information generation unit generates a plurality of types of imaging information at the predetermined frame rate, including outdoor imaging information in which the outside of the vehicle is imaged and indoor imaging information in which the inside of the vehicle is imaged. Imaging information storage device. an imaging information generation unit that generates captured imaging information at a predetermined frame rate;
an imaging information processing unit that converts the imaging information generated by the imaging information generation unit to a low frame rate that is lower than the predetermined frame rate;
a storage unit that stores the imaging information generated by the imaging information processing unit;
a location information acquisition unit that acquires location information indicating the location of the device;
a stop position acquisition unit that acquires stop position information indicating a temporary stop position;
Based on the distance from the temporary stop position to the position of the device, it is determined whether the device exists within a predetermined range from the temporary stop position, and it is determined that the device exists within the predetermined range. a frame rate control unit that generates the imaging information at the predetermined frame rate in the imaging information processing unit and stores this imaging information in the storage unit when the imaging information processing unit
An imaging information storage device comprising: An imaging information storage method in an imaging information storage device comprising an imaging information generation unit, a storage unit, a position information acquisition unit, a stop position acquisition unit, and a frame rate control unit, the method comprising:
an imaging information generation step in which the imaging information generation unit generates captured imaging information at a predetermined frame rate;
a storage step in which the storage unit stores the imaging information generated in the imaging information generation step;
a position information acquisition step in which the position information acquisition unit acquires position information indicating the position of the imaging information storage device;
a stop position acquisition step in which the stop position acquisition unit acquires stop position information indicating a temporary stop position;
The frame rate control unit determines whether or not the imaging information storage device exists within a predetermined range from the pause position based on the distance from the pause position to the position of the device, and a frame rate control step of generating the imaging information at a high frame rate higher than the predetermined frame rate when it is determined that the imaging information storage device exists within the range;
An imaging information storage method comprising: A program for causing a computer to execute an imaging information storage method in an imaging information storage device including an imaging information generation unit, a storage unit, a position information acquisition unit, a stop position acquisition unit, and a frame rate control unit, the program comprising:
a step in which the imaging information generation unit generates captured imaging information at a predetermined frame rate;
a step in which the storage unit stores the imaging information generated by the imaging information generation unit;
a step in which the position information acquisition unit acquires position information indicating the position of the imaging information storage device;
a stop position acquisition step in which the stop position acquisition unit acquires stop position information indicating a temporary stop position;
The frame rate control unit determines whether or not the imaging information storage device exists within a predetermined range from the pause position based on the distance from the pause position to the position of the device, and generating the imaging information at a high frame rate higher than the predetermined frame rate when it is determined that the imaging information storage device exists within the range;
A program that has.