JP2019022063A - Image recording apparatus and image recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image recording device and an image recording method capable of extending an image recording time as much as possible. An image recording device according to an embodiment includes a recording unit, a determination unit, and an operation control unit. The recording unit records an image captured by a camera mounted on the vehicle. The determination unit determines the degree of risk that the vehicle will be damaged while parking based on the situation around the parking space. The motion control unit controls the operation of the recording unit during parking according to the degree of danger determined by the determination unit. [Selection diagram] Fig. 1

Description

  Embodiments disclosed herein relate to an image recording apparatus and an image recording method.

  Conventionally, when an image of the periphery of a parked vehicle is captured and recorded, and damage occurs in the parked vehicle, the recorded image can be used for analysis and investigation of the cause of the damage There is an image recording apparatus (see, for example, Patent Document 1).

JP 2002-218450 A

  However, in the conventional image recording apparatus, when the image is recorded while the engine is stopped and the vehicle is parked, the battery as a power source is not charged and is consuming power. It was difficult to record.

  One aspect of the embodiments has been made in view of the above, and an object thereof is to provide an image recording apparatus and an image recording method capable of extending an image recording time as much as possible.

  An image recording apparatus according to an aspect of an embodiment includes a recording unit, a determination unit, and an operation control unit. A recording part records the image imaged with the camera mounted in a vehicle. The determination unit determines a risk of the vehicle being damaged during parking based on a situation around the parking space. The operation control unit controls the operation of the recording unit during parking according to the degree of risk determined by the determination unit.

  The image recording apparatus and the image recording method according to an aspect of the embodiment can extend the image recording time as much as possible.

FIG. 1 is an explanatory diagram of an image recording method according to the embodiment. FIG. 2 is an explanatory diagram illustrating an example of the configuration of the image recording apparatus according to the embodiment. FIG. 3 is an explanatory diagram illustrating an example of the determination condition according to the embodiment. FIG. 4 is a flowchart illustrating processing executed by the control unit of the image recording apparatus according to the embodiment. FIG. 5 is an explanatory diagram of an image recording method according to the first modification of the embodiment. FIG. 6 is an explanatory diagram of an image recording method according to the second modification of the embodiment.

  Hereinafter, embodiments of an image recording apparatus and an image recording method disclosed in the present application will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by embodiment shown below. First, an outline of an image recording method by the image recording apparatus according to the embodiment will be described with reference to FIG. FIG. 1 is an explanatory diagram of an image recording method according to the embodiment.

  As shown in FIG. 1, the image recording apparatus 1 according to the embodiment is mounted on a vehicle 100. The image recording apparatus 1 is imaged by a camera (hereinafter referred to as “front camera 11”) provided at the front portion of the vehicle 100 and a camera (hereinafter referred to as “rear camera 12”) provided at the rear portion of the vehicle 100. Record the recorded images.

  The front camera 11 is a camera that captures the situation in front of the vehicle 100. The rear camera 12 is a camera that captures the situation behind the vehicle 100. The image recording device 1 records, for example, an image of the situation around the vehicle 100 that is constantly imaged during a period in which the vehicle 100 is traveling or a period in which the engine is stopped.

  Thereby, for example, when the vehicle encounters an accident, the image recording apparatus 1 can output the recorded image and can be used for analysis and investigation of the cause of the accident. The image recording apparatus 1 can also record an image of the situation around the vehicle 100 even when the engine of the vehicle 100 is turned off and parked.

  As a result, the image recording apparatus 1 analyzes the recorded image of the surroundings of the parked vehicle 100, for example, when the vehicle 100 encounters damage such as running away or vandalizing during parking. And can be useful for surveys.

  Here, the image recording apparatus 1 is capable of recording an image for a long time because the battery serving as the power source is charged during the period when the engine of the vehicle 100 is running. However, since the battery is not charged during the period when the engine of the vehicle 100 is turned off and parked, the image recording apparatus 1 cannot record an image for a longer time than the period when the engine is running.

  Therefore, when the vehicle 100 is parked, the image recording apparatus 1 determines the degree of risk that the vehicle will be damaged based on the situation around the parking space. Then, the image recording apparatus 1 controls the image recording operation during parking according to the determined risk level.

  For example, as shown in the upper part of FIG. 1, when the vehicle 100 is parked in a parking lot where only a white line indicating a parking space is provided, the vehicle 100 passes through another vehicle that is parked later in the parking space or the front. There is a possibility of running away from other vehicles.

  Therefore, in this case, the image recording apparatus 1 records both the image captured by the front camera 11 and the image captured by the rear camera 12. Thereby, for example, when the vehicle 100 is hit and escapes while the vehicle 100 is parked, the situation at that time is captured and an image can be recorded.

  Further, as shown in the lower part of FIG. 1, when the vehicle 100 is parked in a parking lot provided with wheel stoppers 101 in addition to the white line indicating the parking space, the vehicle 100 is later parked in the rear parking space. The possibility of being run away is reduced.

  Therefore, in such a case, the image recording apparatus 1 records an image captured by the front camera 11, stops the rear camera 12 from capturing the image behind the vehicle 100, and stops recording the image behind the vehicle 100.

  Thereby, the image recording apparatus 1 can reduce the power consumption of a battery compared with the case where both the image imaged with the front camera 11 and the image imaged with the back camera 12 are recorded. Therefore, the image recording apparatus 1 can extend the image recording time as much as possible as compared with the case where the images before and after the vehicle 100 are recorded.

  Next, an example of the configuration of the image recording apparatus 1 will be described with reference to FIG. FIG. 2 is an explanatory diagram illustrating an example of the configuration of the image recording apparatus 1 according to the embodiment. As shown in FIG. 2, the image recording device 1 is connected to a front camera 11, a rear camera 12, an ECU (Engine Control Unit) 13, a car navigation device 14, and an output device 15.

  The image recording apparatus 1 includes a control unit 2, a storage unit 3, and an operation unit 4. The control unit 2 includes, for example, a microcomputer having a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), an input / output port, and various circuits.

  The control unit 2 includes a recording unit 21, a determination unit 22, an operation control unit 23, and an output unit 24 that function when the CPU executes a program stored in the ROM using the RAM as a work area. .

  The recording unit 21, the determination unit 22, the operation control unit 23, and the output unit 24 may be partially or entirely configured by hardware such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array). .

  The storage unit 3 is, for example, a semiconductor memory device such as a RAM or a flash memory, or a storage device such as an HDD (Hard Disk Drive) or an optical disk. The storage unit 3 stores image information 31 and determination conditions 32.

  The image information 31 is information on an image obtained by capturing the periphery of the vehicle 100 captured by the front camera 11 and the rear camera 12. The determination condition 32 is information used when the control unit 2 determines the risk of the vehicle 100 being damaged during parking. An example of the determination condition 32 will be described later with reference to FIG.

  For example, when a signal indicating that the ignition switch of the vehicle 100 is turned on is input from the ECU 13, the recording unit 21 activates the front camera 11 and the rear camera 12 to start capturing an image. Then, the recording unit 21 acquires images taken from the front camera 11 and the rear camera 12 and records them as image information 31 in the storage unit 3.

  For example, when the signal indicating that the position of the shift lever of the vehicle 100 is in the P (parking) position is input from the ECU 13, the recording unit 21 performs an image recording operation according to the control of the operation control unit 23. Continue or stop.

  For example, when the signal indicating that the position of the shift lever of the vehicle 100 is at the position P is input from the ECU 13, the determination unit 22 is an image captured by the front camera 11 and the rear camera 12 from the recording unit 21. To get.

  Further, the determination unit 22 acquires information on the location, facility, time zone, and weather where the vehicle 100 is parked from the car navigation device 14. Based on the image acquired from the recording unit 21, the information acquired from the car navigation device 14, and the determination condition 32 stored in the storage unit 3, the determination unit 22 is a risk that the vehicle 100 will be damaged during parking. Determine.

  At this time, the determination unit 22 individually determines the risk level for the image captured by the front camera 11 and the image captured by the rear camera 12. Here, with reference to FIG. 3, an example of the determination condition 32 used by the determination unit 22 for determination of the risk will be described. FIG. 3 is an explanatory diagram illustrating an example of the determination condition 32 according to the embodiment. As shown in FIG. 3, the determination condition 32 is information in which a plurality of risk determination conditions and risk levels are associated with each other.

  In the example illustrated in FIG. 3, the risk level “10” is associated with the risk level determination conditions of “no wheel stop”, “no wall or fence”, and “a parking lot other than home”. Further, the risk level “30” is associated with the risk level determination condition of “less popular parking lot”.

  Also, a risk level “20” is associated with each of the risk level determination conditions of “a parking lot with a small parking frame” and “a parking lot with a narrow passage”. In addition, a risk level “10” is associated with each of the risk level determination conditions of “night” and “bad weather”. The risk determination conditions shown in FIG. 3 and the risk associated with the risk determination conditions are merely examples, and the present invention is not limited to these.

  The determination unit 22 analyzes the image acquired from the recording unit 21 and determines whether there are wheel stops, walls, fences, or the like around the parking space. In addition, when the sensor which detects the target around the vehicle 100 is provided in the vehicle 100, the determination part 22 is a wheel stopper, a wall, a fence, etc. around a parking space based on the detection result by a sensor. It can also be determined whether or not there is.

  Moreover, the determination part 22 analyzes the image acquired from the recording part 21, and whether the place where the vehicle 100 is parked is a home parking lot, whether it is a less popular parking lot, and whether a passage is a narrow parking lot. Determine whether or not.

  In addition, when the determination part 22 can acquire the information regarding a parking lot from the car navigation apparatus 14, it is based on the information acquired from the car navigation apparatus 14, whether it is a parking lot with little popularity, or a parking lot with a narrow passage. It is also possible to determine whether or not. Moreover, the determination part 22 determines whether the time slot | zone when the vehicle 100 is parked is nighttime, bad weather, etc. based on the information acquired from the car navigation apparatus 14. FIG.

  If there is a determination result that satisfies the risk determination condition as a result of the plurality of determinations described above, the determination unit 22 adds the risk associated with each corresponding risk determination result, and the vehicle 100 Calculate and determine the risk of damage. Note that the determination unit 22 may calculate the risk of the vehicle 100 being damaged by multiplying the risk associated with each corresponding risk determination result.

  Thus, the determination unit 22 determines the degree of risk based on the presence or absence of wheel stops in the parking space, the presence or absence of fences or walls around the parking space, and whether or not the parking lot is outside the home. Accordingly, the determination unit 22 determines that there is no possibility that the vehicle 100 will suffer damage from hitting when the parking space has wheel stops, fences, walls, or the like, or when the parking space is parked at home. be able to.

  Further, the determination unit 22 determines that there is a possibility that the vehicle 100 may be hit and evacuated when there is no wheel stop, fence, wall, or the like in the parking space, or when the vehicle 100 is parked in a parking lot other than home. be able to. However, the determination unit 22 determines the degree of risk as “10” because there is no possibility that the vehicle 100 will hit and escape if there is no wheel stop, fence, wall, or the like in the parking space.

  The determination unit 22 determines the degree of risk based on whether the parking lot is less popular. Thereby, when the vehicle 100 is parked in a popular parking lot, the determination unit 22 can determine that the possibility that the vehicle 100 encounters runaway or vandalism is low.

  Moreover, when the vehicle 100 is parked in a less popular parking lot, the determination unit 22 can determine that there is a high possibility that the vehicle 100 will encounter runaway or vandalism. In this way, in the case of a parking lot that is less popular, the determination unit 22 determines that the degree of risk is “30”, which is higher than the above-described “10”, because there is a high possibility of encountering vandalism in addition to hitting and running away.

  The determination unit 22 determines the degree of risk based on whether the parking frame is a small parking lot. Thereby, the determination part 22 can determine with a low possibility that the vehicle 100 encounters and escapes when the vehicle 100 is parked in a parking lot with a large parking frame.

  Moreover, when the vehicle 100 is parked in a parking lot with a small parking frame, the determination unit 22 can determine that the vehicle 100 is likely to run away. However, although the determination unit 22 may encounter hitting and running only if the parking frame is small, it is not highly likely that the vehicle will be tampered with, so the degree of risk is “20” lower than “30” described above. Is determined.

  Further, the determination unit 22 determines the degree of risk based on whether the situation in which the vehicle 100 is parked is nighttime or bad weather. Accordingly, the determination unit 22 can determine that the possibility that the vehicle 100 will be damaged is low when the parking situation is not nighttime or when the weather is not bad.

  Further, the determination unit 22 can determine that the vehicle 100 may be damaged when the parking situation is nighttime or bad weather. However, the determination unit 22 determines that the risk is relatively low “10” because the possibility that the vehicle 100 will be damaged is not so high just because it is nighttime or bad weather.

  As described above, the determination unit 22 can accurately determine the risk of the vehicle 100 being damaged during parking by calculating the risk. Then, the determination unit 22 outputs the determined risk level to the operation control unit 23.

  At this time, the determination unit 22 outputs to the operation control unit 23 risk determination results determined individually for the image captured by the front camera 11 and the image captured by the rear camera 12.

  Returning to FIG. 2, the description of the operation control unit 23 will be continued. When the risk level is input from the determination unit 22, the operation control unit 23 determines whether the risk level is less than a threshold value (for example, 30) indicating a predetermined risk level.

  Then, when the degree of risk determined for the image captured by the front camera 11 is less than the threshold, the operation control unit 23 stops the imaging by the front camera 11 after a predetermined time (for example, 1 hour) has elapsed since parking. Then, a command to stop the image recording is output to the recording unit 21.

  As a result, the operation control unit 23 stops capturing and recording unnecessary images during parking to reduce battery power consumption. For example, when the rear camera 12 needs to capture images during parking, the rear camera 12 can extend the recording time of the captured image.

  Further, when the degree of risk determined for the image captured by the front camera 11 is equal to or greater than the threshold, the operation control unit 23 does not stop the imaging by the front camera 11 and continues to the recording unit 21 to continue the front camera. 11 captured images are recorded.

  In addition, when the degree of risk determined for the image captured by the rear camera 12 is less than the threshold, the operation control unit 23 stops the rear camera 12 from capturing after a predetermined time (for example, one hour) has elapsed since parking. Then, a command to stop the image recording is output to the recording unit 21.

  As a result, the operation control unit 23 stops capturing and recording unnecessary images during parking to reduce battery power consumption. For example, when the front camera 11 needs to capture images during parking, the front camera 11 11 can extend the recording time of the captured image.

  In addition, when the degree of risk determined for the image captured by the rear camera 12 is greater than or equal to the threshold, the operation control unit 23 does not stop the rear camera 12 and continues to the recording unit 21 to continue the rear camera. 12 captured images are recorded.

  As described above, the operation control unit 23 individually controls the image recording operation by the recording unit 21 for each of the front camera 11 and the rear camera 12 according to the degree of danger around the vehicle 100. Thereby, the image recording apparatus 1 can record the minimum necessary image for crisis management of the vehicle 100.

  Further, the operation control unit 23 records images captured by the front camera 11 and the rear camera 12 regardless of the degree of danger around the vehicle 100 until a predetermined time has elapsed since parking. Thereby, the image recording apparatus 1 can record the state reliably, for example, when the on-board vandalism is performed aiming at a time zone in which the occupant of the vehicle 100 does not return to the vehicle 100 immediately after parking. it can.

  In addition, since the operation control unit 23 stops the image recording by stopping the image capturing of the camera 100 that captures the direction of low risk in the vehicle 100, the power consumption of the battery is minimized. Thereby, the image recording apparatus 1 can extend as much as possible the recording time of the captured image by the camera that captures the direction that requires caution.

  Note that the operation control unit 23 stops recording of captured images by the front camera 11 and the rear camera 12 when, for example, 24 hours have elapsed since parking. Thereby, the image recording apparatus 1 can prevent the occurrence of battery exhaustion due to long-time recording of images.

  Next, an example of processing executed by the control unit 2 of the image recording apparatus 1 according to the embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating processing executed by the control unit 2 of the image recording apparatus 1 according to the embodiment.

  Note that, as described above, the image recording apparatus 1 always records images captured by the front camera 11 and the rear camera 12 while the engine of the vehicle 100 is running. For this reason, the process which the control part 2 performs here when the vehicle 100 is parked is demonstrated.

  As shown in FIG. 4, the control unit 2 first determines whether or not the vehicle 100 is parked (step S101). And the control part 2 determines with not parking, when the signal which shows that the position of the shift lever of the vehicle 100 is positions other than P (parking) is input from ECU13 (step S101, No), and a process Exit.

  Further, the control unit 2 determines that the vehicle is parked when a signal indicating that the position of the shift lever of the vehicle 100 is at the position P (parking) is input from the ECU 13 (step S101, Yes). The degree of danger around the vehicle 100 is determined (step S102).

  And the control part 2 determines whether the danger degree ahead of the vehicle 100 is less than a threshold value (step S103), and when it determines with it being less than a threshold value (step S103, Yes), predetermined time passed since parking. It is determined whether or not (step S104).

  And when it determines with the control part 2 not having passed predetermined time (step S104, No), it repeats determination of step S104 until predetermined time passes since parking. When it is determined that the predetermined time has elapsed since parking (step S104, Yes), the control unit 2 stops the image recording of the front camera 11 (step S105) and ends the process.

  Moreover, when it determines with the front risk degree not being less than a threshold value (step S103, No), the control part 2 determines whether 24 hours have passed since parking (step S106). And when it determines with the control part 2 having not passed 24 hours since parking (step S106, No), it repeats the determination process of step S106 until 24 hours pass from parking.

  Moreover, when it determines with 24 hours having passed since parking (step S106, Yes), the control part 2 stops the image recording of the front camera 11 (step S105), and complete | finishes a process.

  Further, after determining the degree of risk in step S102, the control unit 2 performs the same process for the rear camera 12. Specifically, the control unit 2 determines whether or not the degree of risk behind the vehicle 100 is less than a threshold value (step S107). If it is determined that the risk is less than the threshold value (step S107, Yes), the predetermined time from parking is determined. It is determined whether or not elapses (step S108).

  And when it determines with the control part 2 not having passed predetermined time (step S108, No), it repeats determination of step S108 until predetermined time passes since parking. When it is determined that the predetermined time has elapsed since parking (step S108, Yes), the control unit 2 stops the image recording of the rear camera 12 (step S109) and ends the process.

  Moreover, when it determines with the rear risk degree not being less than a threshold value (step S107, No), the control part 2 determines whether 24 hours passed since parking (step S110). And the control part 2 repeats the determination process of step S110, when it determines with 24 hours not having passed since parking (step S110, No) until 24 hours have passed since parking.

  Moreover, when it determines with 24 hours having passed since parking (step S110, Yes), the control part 2 stops the image recording of the rear camera 12 (step S109), and complete | finishes a process.

  Here, even if the degree of risk in front of or behind the vehicle 100 is less than the threshold value, the front camera 11 and the rear camera 12 until a predetermined time (for example, 1 hour) shorter than 24 hours elapses after parking. The case where the captured image is recorded has been described, but this is an example.

  The image recording apparatus 1 can also stop the recording of the captured image of the camera that captures the direction in which the risk is determined to be less than the threshold immediately after parking when the risk of the vehicle 100 in front or behind is less than the threshold. As a result, the image recording apparatus 1 can further extend the recording time of the captured image by the camera that captures the direction that requires caution.

  Further, the image recording method by the image recording apparatus 1 can be further variously modified. Hereinafter, a modified example of the image recording method according to the embodiment will be described with reference to FIGS. FIG. 5 is an explanatory diagram of an image recording method according to the first modification of the embodiment. FIG. 6 is an explanatory diagram of an image recording method according to the second modification of the embodiment.

  The image recording apparatus 1 does not stop recording the captured image of the camera whose risk level is determined to be less than the threshold value after a predetermined time has elapsed since parking, for example, information on an image to be recorded according to the elapsed time after parking The structure which reduces quantity may be sufficient.

  In the case of such a configuration, the image recording apparatus 1 stores the table shown in FIG. 5, and reduces the information to be recorded based on the table when the captured image of the camera whose risk is determined to be less than the threshold is recorded. .

  For example, the image recording apparatus 1 records a moving image of 30 (fps) until less than 15 minutes after parking. Here, fps is a unit of the number of frames (image frames) per second. Then, the image recording apparatus 1 stores the operation of 15 (fps) from 15 minutes to less than 30 minutes after parking.

  Thereafter, the image recording apparatus 1 records a still image every 1 second from 30 minutes to less than 1 hour after parking, and records a still image every 2 seconds from 1 hour to less than 6 hours after parking. . Thereafter, the image recording apparatus 1 records a still image every 4 seconds from 6 hours to less than 24 hours after parking. Then, the image recording apparatus 1 stops image recording when 24 hours or more have elapsed after parking.

  As described above, the image recording apparatus 1 also reduces the information amount of the image to be recorded according to the elapsed time after parking when recording the captured image of the camera whose risk is determined to be less than the threshold. The power consumption of the battery during parking can be reduced. Therefore, the image recording apparatus 1 can extend the recording time of the image captured by the camera that captures the direction that requires caution.

  Further, the image recording apparatus 1 may be configured to reduce the information amount of the image to be recorded according to the risk of the vehicle 100 being damaged. In the case of such a configuration, the image recording apparatus 1 stores the table shown in FIG. 6 and reduces information to be recorded according to the degree of risk based on the table.

  For example, the image recording apparatus 1 records a moving image of 30 (fps) when the degree of risk is 80 or more, and records a moving image of 15 (fps) when the degree of risk is 70 or more and less than 80. When the degree of risk is 60 or more and less than 70, a still image is recorded every second.

  The image recording apparatus 1 records still images every 2 seconds when the degree of danger is 50 or more and less than 60, and records still pictures every 4 seconds when the degree of danger is 30 or more and less than 50. If the degree of risk is less than 30, the image recording is stopped.

  Thus, when the vehicle 100 is parked, the image recording device 1 also reduces the amount of information of the image to be recorded as the risk of damage to the vehicle 100 is lower. Electric power can be reduced. Therefore, the image recording apparatus 1 can extend the recording time of the image captured by the camera that captures the direction that requires caution.

  In the above-described embodiment, the case where the front camera 11 and the rear camera 12 are provided in the vehicle 100 has been described. However, in the present embodiment, either the front camera 11 or the rear camera 12 is provided in the vehicle 100. It is also possible to apply to.

  Further, in the present embodiment, when the vehicle 100 is provided with three or more cameras, such as a case where a side camera that captures the side of the vehicle 100 is provided in addition to the front camera 11 and the rear camera 12. Can also be applied.

  In such a case, the image recording apparatus 1 determines whether another vehicle is parked in the parking frame next to the vehicle 100 based on the captured image of the side camera. The degree of risk is determined according to the distance to the vehicle.

  For example, the image recording apparatus 1 sets the risk level to “small” when no other vehicle is parked in the adjacent parking frame or the distance d from the vehicle 100 to the adjacent vehicle is greater than 2 [m]. Is determined. The image recording apparatus 1 determines the degree of risk as “medium” when the distance d to the adjacent vehicle is greater than 1 [m] and equal to or less than 2 [m]. Further, the image recording apparatus 1 determines that the degree of risk is “high” when the distance d to the adjacent vehicle is less than 1 [m].

  And the image recording apparatus 1 shortens the recording time of the image by a side camera after parking, so that the determined risk degree is small. Thereby, since the image recording apparatus 1 can suppress the power consumption of the battery, it is possible to extend the recording time of an image by another camera that needs to be recorded during parking as much as possible.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Image recording device 2 Control part 3 Memory | storage part 4 Operation part 11 Front camera 12 Rear camera 13 ECU
DESCRIPTION OF SYMBOLS 14 Car navigation apparatus 15 Output device 21 Recording part 22 Judgment part 23 Operation control part 24 Output part 31 Image information 32 Judgment conditions 100 Vehicle

Claims (8)

A recording unit that records an image captured by a camera mounted on the vehicle;
A determination unit that determines a risk of the vehicle being damaged during parking based on a situation around the parking space;
An image recording apparatus comprising: an operation control unit that controls an operation of the recording unit during parking in accordance with the degree of risk determined by the determination unit. The operation controller is
The image recording apparatus according to claim 1, wherein the image recording operation by the recording unit is stopped when the risk is less than a predetermined risk. The operation controller is
The image recording apparatus according to claim 1, wherein the information amount of an image recorded by the recording unit is reduced as the risk level is lower. The determination unit
The image recording apparatus according to any one of claims 1 to 3, wherein the degree of risk is determined based on the presence or absence of at least one of a wheel stopper, a fence, and a wall. The determination unit
The image recording apparatus according to claim 1, wherein the risk level is determined based on at least one of a place where the vehicle is parked, a time zone, and weather. . The determination unit
When a plurality of cameras are mounted on the vehicle, the degree of risk is determined for an image captured for each camera,
The operation controller is
The image recording apparatus according to claim 1, wherein an image recording operation by the recording unit is individually controlled for each camera. The operation controller is
When the vehicle is parked, the images picked up by all the cameras are recorded, and for images determined by the determination unit that the risk is less than a predetermined risk, a predetermined time has elapsed from the start of parking. The image recording apparatus according to claim 6, wherein the recording is stopped later. A recording unit that records an image captured by a camera mounted on the vehicle;
A step in which the determination unit determines the risk of damage to the vehicle during parking based on the situation around the parking space;
And an operation control unit controlling the operation of the recording unit during parking in accordance with the degree of risk determined by the determination unit.

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