Recording / reproduction control device, production control method, and program

Abstract

A recording / reproduction control device 30 includes: a filming control unit 31 that acquires a video filmed by a rear camera 22; a range specifying unit 41 that specifies a first range to be displayed on a first display unit 27 for allowing the driver of a vehicle to confirm the rear of the vehicle, in relation to the video acquired by the filming control unit 31; a recording control unit 34 that records the video acquired by the filming control unit 1 in a recording unit 23; a reproduction control unit 35 that reproduces the video recorded by the recording control unit 34; and a display control unit 42 that displays information indicating the first range on a video to be displayed in a second range wider than the first range when causing the first display unit 27 or a second display unit 63 different from the first display unit 27 to display the video reproduced by the reproduction control unit 35 in the second range.

Description

Recording / playback control device, playback control method, and program

[0001] The present invention relates to a recording / playback control device, a playback control method, and a program.

[0002] Drive recorders that also function as digital inner mirrors are becoming popular (see, for example, Patent Document 1). Such drive recorders are equipped with at least a front camera and a rear camera, and function as a digital inner mirror by recording images from the front and rear cameras and displaying the image from the rear camera on a display unit that is the same size as a rearview mirror.

[0003] Japanese Patent Application Laid-Open No. 2022-058355

[0004] Cameras that capture video for recording as drive recorders are required to capture a wide range, so cameras with a relatively wide angle of view are used. In contrast, if the image displayed in a digital inner mirror is the image from a wide-angle camera, the wide angle of view will cause objects in the range required for rearward confirmation to appear small, making it difficult to properly check the surroundings. Therefore, the image displayed in a digital inner mirror is a narrow-range image that is partially cropped from the image from the rearview camera.

[0005] For this reason, when playing back video recorded as drive recorder video, such as video saved as event data based on the occurrence of an event such as an accident, the display range of the rear view video recorded by the rear camera differs from the angle of view of the range that the vehicle driver actually sees in the digital inner mirror. Also, because the display size of other vehicles that the vehicle driver sees in the digital inner mirror differs from the display size of other vehicles displayed in the played-back rear view video, it may be difficult for the vehicle driver to properly explain the occurrence of an accident based on the played-back rear view video.

[0006] The present disclosure has been made in consideration of the above, and aims to make it easier to more appropriately understand the causes of accidents, etc., by clarifying the range that the vehicle driver is viewing through the digital inner mirror when playing back video from a drive recorder, such as event data.

[0007] In order to solve the above-mentioned problems and achieve the object, the recording and playback control device of the present disclosure includes a shooting control unit that acquires video captured by a rear camera that captures video behind a vehicle, a range identification unit that identifies a first range to be displayed on a first display unit for a driver of the vehicle to check behind the vehicle from the video acquired by the shooting control unit, a recording control unit that records the video acquired by the shooting control unit in a recording unit, a playback control unit that plays back the video recorded by the recording control unit, and a display control unit that, when the video played back by the playback control unit is displayed on the first display unit or a second display unit different from the first display unit in a second range wider than the first range, displays information indicating the first range in the video displayed in the second range.

[0008] The playback control method according to the present disclosure includes a playback control step of playing back video captured and recorded by a rear camera that captures the area behind the vehicle, and a display control step of displaying information indicating the first range on the video when the video played back in the playback control step is displayed in a second range wider than the first range on a first display unit or a second display unit different from the first display unit that displays the video in a first range so that a driver of the vehicle can check the area behind the vehicle.

[0009] The program of the present disclosure causes a computer to execute a playback control step of playing back video captured and recorded by a rear camera that captures the area behind the vehicle, and a display control step of displaying information indicating the first range on the video when the video played back in the playback control step is displayed in a second range wider than the first range on a first display unit or a second display unit different from the first display unit that displays the video in a first range so that the driver of the vehicle can check the area behind the vehicle.

[0010] According to the present disclosure, when playing back video from a drive recorder such as event data, the range that the vehicle driver is viewing through the digital inner mirror is made clear, thereby making it easier to more appropriately understand the causes of accidents, etc.

[0011] FIG. 1 is a block diagram showing an example of the configuration of a vehicle recording and playback device having a recording and playback control device according to a first embodiment. FIG. 2 is a front view showing a first display unit. FIG. 3 is a rear view showing the first display unit. FIG. 4 is a diagram showing an example of the shooting angle of view of a rear camera and a first range. FIG. 5 is a block diagram showing an example of the configuration of a playback device having a playback control device according to the first embodiment. FIG. 6 is a front view showing a second display unit. FIG. 7 is a flowchart showing the flow of recording processing in the recording and playback control device according to the first embodiment. FIG. 8 is a flowchart showing the flow of playback processing in the recording and playback control device according to the first embodiment. FIG. 9 is a diagram showing an example of an image in which the first range is drawn on the second display unit. FIG. 10 is a diagram showing another example of an image in which the first range is drawn on the first display unit. FIG. 11 is a block diagram showing an example of the configuration of a vehicle recording and playback device having a recording and playback control device according to a second embodiment. FIG. 12 is a front view showing the first display unit and a line-of-sight detection camera. FIG. 13 is a flowchart showing the flow of recording processing in the recording and playback control device according to the second embodiment. FIG. 14 is a flowchart showing the flow of playback processing in the recording and playback control device according to the second embodiment. FIG. 15 is a flowchart showing the flow of recording processing in the recording and playback control device according to a third embodiment. FIG. 16 is a flowchart showing the flow of a playback process in the recording and playback control device according to the third embodiment.

[0012] Hereinafter, embodiments of a recording / playback control device, a playback control method, and a program according to the present disclosure will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments.

[0013] [First embodiment] (Recording / playback device) The recording / playback device may be implemented as a standalone vehicle recording / playback device 10, which is a digital inner mirror type drive recorder with recording / playback functions. Alternatively, the recording / playback device may be implemented as a recording / playback system including the vehicle recording / playback device 10, which is a digital inner mirror type drive recorder with at least a recording function, and a playback device 50, such as a navigation system, a smartphone, or a PC (Personal Computer), which plays back video recorded by the vehicle recording / playback device 10. In the following description, the recording / playback device will be described as being implemented as a recording / playback system including the vehicle recording / playback device 10 and the playback device 50.

[0014] (Vehicle Recording / Reproducing Apparatus) Fig. 1 is a block diagram showing an example of the configuration of a vehicle recording / reproducing apparatus having a recording / reproducing control device according to a first embodiment. Fig. 2 is a front view showing a first display unit. Fig. 3 is a rear view showing the first display unit.

[0015] In this embodiment, the vehicle recording / playback device 10 is implemented as a drive recorder integrated with a digital inner mirror. The vehicle recording / playback device 10 functions as a drive recorder in addition to the function of a digital inner mirror. In this embodiment, the vehicle recording / playback device 10 is fixed to a windshield or inner mirror (not shown). The vehicle recording / playback device 10 may be a device mounted on the vehicle or may be a portable device that can be used in the vehicle. The vehicle recording / playback device 10 includes a front camera 21, a rear camera 22, a recording unit 23, an acceleration sensor 24, an operation unit 25, a GNSS (Global Navigation Satellite System) receiving unit 26, a first display unit 27, and a recording / playback control device 30.

[0016] The front camera 21 is a camera that captures images in front of the vehicle. In this embodiment, the front camera 21 is described as a camera capable of capturing images in a horizontal direction of approximately 140° to 160° and a vertical direction of approximately 60° to 80°. However, the present invention is not limited to this. The front camera 21 may be a camera capable of capturing images in a 360° panoramic direction, or a group of multiple cameras capturing images in each direction. The front camera 21 is disposed at the front of the vehicle interior. As shown in FIGS. 2 and 3 , the front camera 21 is disposed behind the first display unit 27. The front camera 21 continuously captures images from the time the vehicle's power source, such as the engine, starts until it stops, that is, while the vehicle is operating. In this embodiment, the front camera 21 continuously captures images while the vehicle's accessory power is ON. The front camera 21 outputs the captured images to the capture control unit 31 of the recording / playback control device 30. The images captured by the front camera 21 are moving images composed of, for example, 30 frames per second.

[0017] The rear camera 22 is a camera that captures the rear of the vehicle. In this embodiment, the rear camera 22 is described as a camera that can capture images at approximately 120° to 150° horizontally and approximately 50° to 70° vertically. However, the present invention is not limited to this. The rear camera 22 may be a camera that can capture images in a 360° panoramic direction, or a group of multiple cameras that capture images in each direction. The rear camera 22 is disposed at the rear of the vehicle interior or the rear of the vehicle exterior. For example, the rear camera 22 is disposed above the rear window facing rearward. The rear camera 22 continuously captures images from the time the vehicle's power source, such as the engine, starts until it stops, that is, while the vehicle is operating. In this embodiment, the rear camera 22 continuously captures images while the vehicle's accessory power is ON. The rear camera 22 outputs the captured images to the capture control unit 31 of the recording / playback control device 30. The images captured by the rear camera 22 are moving images, for example, composed of images at 30 frames per second.

[0018] The rear camera 22 serves both as a rear camera for the drive recorder and as a camera for the digital inner mirror. The image captured by the rear camera 22 is recorded as a rear camera image for the drive recorder, and an image for the digital inner mirror is extracted from the image captured by the rear camera 22 and displayed on the display unit of the digital inner mirror.

[0019] The recording unit 23 is used for temporary storage of data in the vehicle recording / reproducing device 10. The recording unit 23 is, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory, or a recording unit such as a memory card. Alternatively, the recording unit 23 may be an external recording unit wirelessly connected via a communication device (not shown). The recording unit 23 records normal recording data or event data based on a control signal output from the recording control unit 34 of the recording / reproducing control device 30.

[0020] The normal recorded data includes at least one of a front image captured by the front camera 11 and a rear image captured by the rear camera 22.

[0021] The event data includes at least one of a front image and a rear image.

[0022] The acceleration sensor 24 is a sensor that detects acceleration applied to the vehicle. The acceleration sensor 24 outputs the detection result to the event detection unit 36 ​​of the recording and playback control device 30. The acceleration sensor 24 is a sensor that detects acceleration in, for example, three axial directions. The three axial directions are the front-to-rear, left-to-right, and up-to-down directions of the vehicle. Impacts to the vehicle can be detected based on acceleration in the three axial directions.

[0023] The operation unit 25 can accept various operations for the vehicular recording / playback device 10. For example, the operation unit 25 can accept an operation to manually save captured video in the recording unit 23. The operation unit 25 is a touch panel provided on the first display unit 27. For example, the operation unit 25 can accept an operation to play back event data or normal recording data recorded in the recording unit 23. For example, the operation unit 25 can accept an operation to erase event data or normal recording data recorded in the recording unit 23. For example, the operation unit 25 can accept an operation to end normal recording. The operation unit 25 outputs operation information to the operation control unit 37 of the recording / playback control device 30.

[0024] The first display unit 27 is a display device of a digital inner mirror as shown in Figures 2 and 3. The first display unit 27 is a display including, for example, a liquid crystal display (LCD) or an organic electroluminescence (EL) display. As shown in Figures 2 and 3, the first display unit 27 is formed integrally with the forward camera 21. The first display unit 27 displays an image based on a video signal output from a display control unit 42 of the recording and playback control device 30.

[0025] When first display unit 27 functions as a display unit of a digital inner mirror, it displays the image captured by rear camera 22. In this case, first display unit 27 displays an image of a first range in the image captured by rear camera 22. Furthermore, when first display unit 27 functions as a display unit of a drive recorder, it can display an image recorded in recording unit 23. In this case, first display unit 27 displays an image of a second range in the image captured by rear camera 22. The first range and second range will be described later.

[0026] The GNSS receiving unit 26 is configured with a GNSS receiver that receives GNSS signals from GNSS satellites, etc. The GNSS receiving unit 26 outputs the received position information signal to a position information acquiring unit 38 of the recording and reproduction control device 30.

[0027] (Recording / Playback Control Device) The recording / playback control device 30 is an arithmetic processing device (control device) configured with, for example, a CPU (Central Processing Unit). The recording / playback control device 30 loads stored programs into memory and executes instructions contained in the programs. The recording / playback control device 30 includes an internal memory (not shown) that is used for storing programs that operate the recording / playback control device 30 and temporarily storing data in the recording / playback control device 30. The recording / playback control device 30 includes an imaging control unit 31, a buffer memory 32, an imaging data processing unit 33, a recording control unit 34, a playback control unit 35, an event detection unit 36, an operation control unit 37, a position information acquisition unit 38, a range identification unit 41, and a display control unit 42.

[0028] The image capture control unit 31 acquires images of the surroundings of the vehicle. More specifically, the image capture control unit 31 acquires images captured by the front camera 21 and the rear camera 22. The image capture control unit 31 may control the capture of images by the front camera 21 and the rear camera.

[0029] The buffer memory 32 is an internal memory provided in the recording / playback control device 30, and is a memory that temporarily records, while updating, a certain period of video acquired by the shooting control unit 31.

[0030] The shooting data processing unit 33 converts the video temporarily stored in the buffer memory 32 into an arbitrary file format, such as MP4 format, encoded using an arbitrary codec, such as H.264 or MPEG-4 (Moving Picture Experts Group). The shooting data processing unit 33 generates a shooting file for a certain period of time from the video temporarily stored in the buffer memory 32. As a specific example, the shooting data processing unit 33 generates a single file for 60 seconds of video from the video temporarily stored in the buffer memory 32 in the order of recording. The shooting data processing unit 33 outputs the generated shooting file to the recording control unit 34. The shooting data processing unit 33 also outputs the generated shooting file to the display control unit 42. While the shooting period of the video generated as the shooting file is 60 seconds as an example, it is not limited to this. The video referred to here may be data including audio in addition to video captured by the front camera 21 and the rear camera 22.

[0031] The recording control unit 34 controls the recording unit 23 to record the captured image files filed by the captured image data processing unit 33. During a period when normal recording processing is being performed, such as when the vehicle's accessory power is ON, the recording control unit 34 records the captured image files filed by the captured image data processing unit 33 as normal recording data, which are overwritable captured image files, in the recording unit 23. More specifically, during a period when normal recording processing is being performed, the recording control unit 34 continues to record the captured image files generated by the captured image data processing unit 33 as normal recording data in the recording unit 23, and when the capacity of the recording unit 23 becomes full, it overwrites the oldest captured image file with a new captured image file.

[0032] In addition, when the event detection unit 36 ​​detects an event, the recording control unit 34 stores the video of a predetermined period in the shooting file generated by the shooting data processing unit 33 in the recording unit 23 as event data that is prohibited from being overwritten.

[0033] During normal recording processing, event data refers to a shooting file or a shooting file generated from video of a predetermined period before and after the event is detected. An example of the predetermined period is a period of approximately 10 seconds or more and 60 seconds or less before and after the event is detected.

[0034] The playback control unit 35 plays back the video recorded by the recording control unit 34. In this embodiment, the playback control unit 35 plays back captured files such as event data or normal recording data. Based on a playback operation control signal output from the operation control unit 37, the playback control unit 35 controls the playback of captured files such as event data or normal recording data recorded in the recording unit 23.

[0035] The event detection unit 36 ​​detects an event with respect to the vehicle. The method by which the event detection unit 36 ​​detects an event with respect to the vehicle is arbitrary, but as one example, the event detection unit 36 ​​detects an event based on the detection result of the acceleration sensor 24. In this case, the event detection unit 36 ​​detects an event when acceleration equal to or greater than a threshold value detected by the acceleration sensor 24. The acceleration detected by the event detection unit 36 ​​as an event is set to a threshold value that allows an impact to the vehicle to be detected.

[0036] The operation control unit 37 acquires operation information of an operation accepted by the operation unit 25. For example, the operation control unit 37 acquires save operation information indicating a manual save operation for saving event data at the timing of the operation, selection operation information indicating a selection operation of a captured file such as event data or normal recording data, playback operation information indicating a playback operation of the selected captured file, or deletion operation information indicating a deletion operation of the selected captured file, and outputs a control signal. For example, the operation control unit 37 acquires end operation information indicating an operation for ending normal recording, and outputs a control signal.

[0037] The position information acquisition unit 38 calculates the current position information of the vehicle by a known method based on the radio waves received by the GNSS receiving unit 26. When the event detection unit 36 ​​detects an event, the position information calculated by the position information acquisition unit 38 is saved together with the event data.

[0038] The range specifying unit 41 specifies a first range, which is a display range to be displayed on the first display unit 27 for the vehicle driver to check what is behind the vehicle, for the image acquired by the imaging control unit 31. In other words, the range specifying unit 41 specifies a first range within the imaging angle of view of the image acquired by the imaging control unit 31 for the vehicle driver to check what is behind the vehicle using the first display unit 27 when it functions as a digital inner mirror. The range specifying unit 41 specifies, for example, a preset range within the imaging angle of view of the image acquired by the imaging control unit 31 as the first range. In the present embodiment, the range specifying unit 41 may specify, for example, the center of the imaging angle of view of the image acquired by the imaging control unit 31 as the first range.

[0039] The processing of the range specifying unit 41 is executed, for example, when the recording control unit 34 records a captured file in the recording unit 23, or when the playback control unit 35 plays back event data or normal recording data.

[0040] 4 is a diagram showing an example of the second range and the first range. The second range 100 may coincide with the imaging angle of view 100 of the rear camera 22. The first range 101 indicates the range displayed when the first display unit 27 functions as a digital inner mirror. The first range 101 is located, for example, in the center of the second range 100.

[0041] The display control unit 42 controls the display of the image on the first display unit 27. The display control unit 42 outputs a video signal based on the image to be output to the first display unit 27. More specifically, the display control unit 42 outputs to the first display unit 27 a video signal of the image captured by the rear camera 22 or a video signal of the image to be displayed by playing back the event data or the normal recording data recorded in the recording unit 23.

[0042] The display control unit 42 may output the video signal of the event data or the normally recorded data reproduced by the reproduction control unit 35 to a second display unit 63 different from the first display unit 27 via a communication function such as Wi-Fi (registered trademark) or a LAN (Local Area Network) that communicates with the reproduction control device 70. In this case, the vehicular recording / reproducing device 10 includes a communication unit or an interface unit (hereinafter referred to as "I / F"), not shown.

[0043] When display control unit 42 causes second display unit 63 of playback device 50 to display the video played back by playback control unit 35, display control unit 42 causes second display unit 62 to display the video of the second range and also displays information indicating the first range identified by range identification unit 41. When displaying event data or normal record data on second display unit 63, for example, display control unit 42 causes a frame line or the like indicating the first range, which is the display range confirmed by the driver of the vehicle using first display unit 27, which is the digital inner mirror.

[0044] The information indicating the first range is, for example, a frame line indicating the periphery of the first range. The information indicating the first range is not limited to a frame line as long as it is possible to distinguish the first range.

[0045] When first display unit 27 is functioning as a digital inner mirror, display control unit 42 causes first display unit 27 to display a first range from the image captured by rear camera 22. Specifically, as shown in FIG. 4 , display control unit 42 causes first display unit 27 to display a range indicated by first range 101 from the image captured by rear camera 22 indicated by imaging angle of view 100. In this case, the first range may be cut out from the image captured by rear camera 22 and displayed on first display unit 27.

[0046] When causing first display unit 27 to function as the second display unit, display control unit 42 causes first display unit 27 to display the entire video played back by playback control unit 35. Specifically, as shown in Fig. 10 , playback control unit 35 causes first display unit 27 to display the video played back by first display unit 27 without changing the aspect ratio. When displaying event data or normal record data on first display unit 27, for example, display control unit 42 causes a frame line indicating first range 101, which is the display range confirmed by the driver of the vehicle using first display unit 27, which is a digital inner mirror.

[0047] (Playback Device) Fig. 5 is a block diagram showing an example of the configuration of a playback device having a playback control device according to the first embodiment. Fig. 6 is a front view showing a second display unit. In this embodiment, the playback device 50 is a device separate from the recording / playback device 10, such as a navigation system or a personal computer. The playback device 50 is capable of displaying event data or normal recording data captured by the recording / playback device 10. The playback device 50 has an I / F 61, an operation unit 62, a second display unit 63, and a playback control device 70.

[0048] The I / F 61 is an interface for acquiring a video signal or a captured file from an external system. In this embodiment, the I / F 61 is an interface for acquiring a video signal or a captured file from the recording / playback device 10. The I / F 61 is, for example, a wired interface for communicating with the recording / playback device 10, a wireless interface using a communication function such as Wi-Fi or LAN, or a reader for a recording medium such as a memory card.

[0049] The playback device 50 may acquire the video played back by the playback control unit 35 of the recording / playback device 10 via the I / F 61 and display it on the second display unit 63, or may acquire shooting files such as event data or normal recording data acquired from the recording / playback device 10 and display them on the second display unit 63 by playback by the playback control unit 73 of the playback device 50.

[0050] The operation unit 62 can accept various operations for the playback device 50. The operation unit 62 is, for example, a touch panel provided on the second display unit 63. For example, the operation unit 62 can accept an operation to play back event data or normal recording data, which are captured files acquired via the I / F 61. The operation unit 62 outputs operation information to an operation control unit 72 of the playback control device 70.

[0051] The second display unit 63 is a display including, for example, a liquid crystal display or an organic EL display. The second display unit 63 functions as a display unit of the drive recorder and can display event data or normal recording data captured by the recording / reproducing device 10. The second display unit 63 displays video based on a video signal output from the display control unit 74 of the reproduction control device 70. The second display unit 63 displays video acquired via the I / F 61. When video captured by the rear camera 22 in the event data or normal recording data captured by the recording / reproducing device 10 is displayed on the second display unit 63, a second range of video captured by the rear camera 22 is displayed on the second display unit 63. The second display unit 63 may display the video captured by the rear camera 22, or may simultaneously display the video captured by the rear camera 22 and the video captured by the front camera 21.

[0052] The second display unit 63 may be, for example, the first display unit 27 of the recording / reproducing device 10. In this case, the recording / reproducing control device 30 shown in Fig. 1 constitutes the present disclosure.

[0053] (Playback Control Device) The playback control device 70 is an arithmetic processing device (control device) configured with, for example, a CPU. The playback control device 70 loads a stored program into memory and executes instructions contained in the program. The playback control device 70 includes an internal memory (not shown), which is used to store programs that operate the playback control device 70 and temporarily store data in the playback control device 70. The playback control device 70 has an input control unit 71, an operation control unit 72, a playback control unit 73, and a display control unit 74.

[0054] The input control unit 71 controls the acquisition of video signals and captured files from external devices such as the recording / reproducing device 10 via the I / F 61 .

[0055] The operation control unit 72 acquires operation information of the operation accepted by the operation unit 62. For example, the operation control unit 72 acquires selection operation information indicating a selection operation of event data or normally recorded data, or reproduction operation information indicating a reproduction operation of event data or normally recorded data, and outputs a control signal.

[0056] The playback control unit 73 plays back the selected event data or normal recording data. The playback control unit 73 controls the playback of the event data or normal recording data acquired via the I / F 61, based on the control signals of the selection operation and playback operation output from the operation control unit 72.

[0057] The display control unit 74 controls the display of the video on the second display unit 63. The display control unit 74 outputs a video signal that causes the video to be output to the second display unit 63. When the display control unit 74 causes the video to be displayed on the second display unit 63, it causes information indicating the first range identified by the range identification unit 41 of the recording and playback control device 30 to be displayed.

[0058] In the present embodiment, the display control unit 74 displays the reproduced event data or normally recorded data on the second display unit 63. In the present embodiment, when the display control unit 74 displays the event data or normally recorded data on the second display unit 63, the display control unit 74 displays the event data or normally recorded data in a second range on the second display unit 63 and displays information indicating the first range identified by the range identification unit 41 of the recording and reproduction control device 30. In the present embodiment, when the display control unit 74 displays the event data or normally recorded data on the second display unit 63, as shown in FIG. 4 , the display control unit 74 displays a frame line indicating a first range 101, which is the display range confirmed by the driver of the vehicle using the first display unit 27, which is the digital inner mirror, for the image captured by the rear camera 22, which is indicated by a second range 100, in the displayed event data or normally recorded data.

[0059] When the playback device 50 functions simply as a display device that displays video based on the video signal output from the recording / playback device 10, the operation unit 62 and the operation control unit 72 and playback control unit 73 of the playback control device 70 are not essential components. In this case, the video played back by the playback control unit 35 of the recording / playback device 10 is acquired from the recording / playback device 10 by the input control unit 71 via the I / F 61. Then, the display control unit 74 simply causes the video to be displayed on the second display unit 63.

[0060] (Recording Process) Next, the flow of recording process in the recording and playback control device 30 will be described with reference to Figures 7 and 8. Figure 7 is a flowchart showing the flow of recording process in the recording and playback control device according to the first embodiment. Here, the case of performing normal recording process and event data recording process will be described.

[0061] 7 starts, for example, when the vehicle on which the vehicular recording / playback device 10 is mounted starts operating, and ends when the vehicle stops operating. The recording / playback control device 30 starts image capture, normal recording, and event detection (step S101). More specifically, the recording / playback control device 30 starts image capture using the front camera 21 and the rear camera via the image capture control unit 31. The recording / playback control device 30 generates image capture files for each image of a predetermined period from the images recorded in the buffer memory 32 via the image capture data processing unit 33. The recording / playback control device 30 records the image capture files in the recording unit 23 via the recording control unit 34. The recording / playback control device 30 starts event detection using the event detection unit 36 ​​based on the detection result of the acceleration sensor 24. The recording / playback control device 30 proceeds to step S102.

[0062] The recording / playback control device 30 determines whether or not an event has been detected by the event detection unit 36 ​​(step S102). More specifically, if the event detection unit 36 ​​determines that an event has been detected (Yes in step S102), the recording / playback control device 30 proceeds to step S103. If the event detection unit 36 ​​does not determine that an event has been detected (No in step S102), the recording / playback control device 30 proceeds to step S104.

[0063] If it is determined that an event has been detected (Yes in step S102), the recording / playback control device 30 stores event data, which is video footage for a predetermined period before and after the event was detected (step S103). More specifically, the recording / playback control device 30 causes the shooting data processing unit 33 to select from the shooting files recorded in the recording unit 23 a shooting file that includes at least the time when the event occurred, and stores this as event data in the recording unit 23 using the recording control unit 34. The recording / playback control device 30 proceeds to step S104.

[0064] The recording / playback control device 30 determines whether or not to end the image capture, normal recording, and event detection (step S104). More specifically, the recording / playback control device 30 determines to end the image capture, normal recording, and event detection under any condition, such as when the operation control unit 37 outputs end operation information or when the vehicle operation ends (Yes in step S104), and ends the processing. If the operation control unit 37 does not output end operation information, the recording / playback control device 30 determines not to end the image capture, normal recording, and event detection (No in step S104), and executes the processing of step S102 again.

[0065] (Playback Processing) Next, the flow of playback processing in the recording and playback control device 30 will be described with reference to Fig. 8. Fig. 8 is a flowchart showing the flow of playback processing in the recording and playback control device according to the first embodiment.

[0066] The recording and playback control device 30 determines whether a playback operation has been performed (step S111). In this case, the playback operation is performed on a captured file such as event data or normally recorded data recorded in the recording unit 23. The playback operation includes selecting a captured file such as event data or normally recorded data to be played back and issuing an instruction to start playing the selected captured file. The recording and playback control device 30 determines that a playback operation has been performed when the operation control unit 37 acquires operation information indicating a playback operation. If the operation control unit 37 determines that a playback operation has been performed (Yes in step S111), the recording and playback control device 30 proceeds to step S112. If the operation control unit 37 does not determine that a playback operation has been performed (No in step S111), the recording and playback control device 30 ends the process.

[0067] If it is determined that a playback operation has been performed (Yes in step S111), the recording and playback control device 30 determines whether rearward video is being played (step S112). More specifically, the recording and playback control device 30 determines that rearward video is being played if the event data or normally recorded data to be played back, for which the operation control unit 37 has performed a playback operation, includes rearward video. A case in which rearward video is included means, for example, that the event data or normally recorded data to which the playback operation has been performed is event data or normally recorded data based on video captured by the rearward camera 22, or event data or normally recorded data based on video captured by the front camera 21 and video captured by the rearward camera 22. In other words, the processing of step S112 may determine whether a playback operation has been performed for rearward video or video including rearward video. Furthermore, the processing of step S112 may determine whether information indicating a first range is included in the event data or normally recorded data to be played back, instead of or in addition to determining whether rearward video is being played back.

[0068] If the recording and playback control device 30 determines that rear video is being played back (Yes in step S112), the process proceeds to step S113. If the recording and playback control device 30 does not determine that rear video is being played back (No in step S112), the process proceeds to step S115.

[0069] If it is determined that rearward video is being played back (Yes in step S112), the recording and playback control device 30 starts playback of the event data or normally recorded data to be played back, and displays the played back rearward video along with information indicating the first range (step S113). More specifically, the recording and playback control device 30 causes the playback control unit 35 to start playback of the event data or normally recorded data to be played back, generates a video signal including information indicating the first range for the rearward video of the played back event data or normally recorded data, and causes the display control unit 42 to output the video signal to the first display unit 27, thereby displaying the video on the first display unit 27. After step S113, the recording and playback control device 30 proceeds to step S114.

[0070] The recording and playback control device 30 determines whether to end playback of the event data or the normally recorded data (step S114). The recording and playback control device 30 determines to end playback of the event data or the normally recorded data when the event data or the normally recorded data has been played back to the end, or when an operation to stop playback has been performed. If the recording and playback control device 30 determines to end playback (Yes in step S114), it ends the process. If the recording and playback control device 30 does not determine to end playback (No in step S114), it executes the process of step S114 again.

[0071] If it is not determined that rear video is being played back (No in step S112), the recording and playback control device 30 starts playback of the event data or normally recorded data to be played back, and displays the played back video (step S115). More specifically, the recording and playback control device 30 starts playback of the event data or normally recorded data to be played back using the playback control unit 35, and causes the display control unit 42 to output a video signal to the first display unit 27, thereby displaying the video on the first display unit 27. After step S115, the recording and playback control device 30 proceeds to step S116.

[0072] The recording and playback control device 30 determines whether to end playback of the event data or the normally recorded data (step S116). The recording and playback control device 30 determines to end playback of the event data or the normally recorded data when the event data or the normally recorded data has been played back to the end, or when an operation to stop playback has been performed. If the recording and playback control device 30 determines to end playback (Yes in step S116), it ends the process. If the recording and playback control device 30 does not determine to end playback (No in step S116), it executes the process of step S116 again.

[0073] A case will be described in which the recording / playback control device 30 displays event data or normally recorded data on the second display unit 63 of the playback device 50 via a communication function such as Wi-Fi. In step S113, a video signal including information indicating a first range is generated for the rear image of the played-back event data or normally recorded data, and the video signal is transmitted to the playback device 50. As a result, the second display unit 63 of the playback device 50 displays video 100 of the event data or normally recorded data, depicting information indicating the first range 101, as shown in FIG. 9 . FIG. 9 is a diagram showing an example of video depicting the first range displayed on the second display unit. By executing step S115, the event data or normally recorded data is displayed on the second display unit 63 of the playback device 50.

[0074] The following describes a case where the recording / playback control device 30 displays event data or normally recorded data on the first display unit 27. By executing step S113, the first display unit 27 displays an image 100 of the event data or normally recorded data, depicting information indicating a first range 101, as shown in Fig. 10. Fig. 10 is a diagram showing another example in which an image depicting the first range is displayed on the first display unit. By executing step S115, the first display unit 27 displays the event data or normally recorded data.

[0075] (Effects) As described above, in this embodiment, when the played-back video is displayed in the second range on the first display unit 27 or the second display unit 63, information indicating the first range to be displayed on the first display unit 27 for the vehicle driver to check behind the vehicle is displayed. In this embodiment, when the played-back event data is displayed in the second range on the first display unit 27 or the second display unit 63, information indicating the first range is displayed. According to this embodiment, the range displayed on the digital inner mirror during playback can be clarified, regardless of whether the data is normal recording data or event data. According to this embodiment, the range within which the vehicle driver can check behind the vehicle using the digital inner mirror during the period of the played-back video can be identified. This embodiment can easily and objectively present the extent to which the vehicle driver was able to check causative events, etc., in the event of an accident, etc. In this way, this embodiment can more appropriately facilitate understanding of the cause of an accident, etc., when playing back event data, etc.

[0076] According to this embodiment, even if the display size of other vehicles that the driver of the vehicle is checking in the digital inner mirror differs from the display size of the other vehicles displayed in the played-back rear image, the driver of the vehicle can easily recognize the distance to the other vehicles, etc., because the first range is displayed.

[0077] Second Embodiment A vehicle recording / playback device 10A according to this embodiment will be described with reference to FIGS. 11 to 14. FIG. 11 is a block diagram showing an example of the configuration of a vehicle recording / playback device having a recording / playback control device according to the second embodiment. FIG. 12 is a front view showing a first display unit and a gaze detection camera. FIG. 13 is a flowchart showing the flow of recording processing in the recording / playback control device according to the second embodiment. FIG. 14 is a flowchart showing the flow of playback processing in the recording / playback control device according to the second embodiment. The vehicle recording / playback device 10A has a basic configuration similar to that of the vehicle recording / playback device 10 of the first embodiment. In the following description, components similar to those of the vehicle recording / playback device 10 are designated by the same or corresponding reference numerals, and detailed description thereof will be omitted. The vehicle recording / playback device 10A differs from the first embodiment in that it includes a gaze detection camera 24A and a gaze detection unit 43A, and in the processing of the shooting control unit 31A, the recording control unit 34A, and the display control unit 42A.

[0078] The gaze detection camera 24A is a camera that captures images so as to detect the driver's gaze. As shown in FIG. 12 , the gaze detection camera 24A is a camera provided around the display screen of the first display unit 27. The gaze detection camera 24A may be disposed on the dashboard. The gaze detection camera 24A captures images in a direction facing the display screen of the first display unit 27. In this embodiment, the gaze detection camera 24A is, for example, a camera that captures images of the face of the vehicle driver. The gaze detection camera 24A may be a group of multiple cameras. The gaze detection camera 24A is, for example, a visible light camera or a near-infrared camera. The gaze detection camera 24A may be, for example, a combination of a visible light camera and a near-infrared camera. In this embodiment, the gaze detection camera 24A constantly captures images while the accessory power of the vehicle is ON. The gaze detection camera 24A outputs the captured images to the capture control unit 31A of the recording and playback control device 30A.

[0079] The gaze detection unit 43A detects the gaze direction of the vehicle driver from the video captured by the gaze detection camera 24A, which captures the direction facing the display screen of the first display unit 27. The gaze detection unit 43A recognizes the face of the vehicle driver included in the captured video captured by the gaze detection camera 24A and acquired by the image data acquisition unit 111, and detects the gaze direction from the detected video of the eyes. The gaze detection unit 43A detects that the vehicle driver is looking at the first display unit 27 from the corneal reflex and pupil position from the video captured of the face (both eyes) of the vehicle driver. For example, the gaze detection unit 43A may determine that the vehicle driver is looking at the first display unit 27 when it detects that the vehicle driver's gaze is directed toward the first display unit 27 and the vehicle driver's gaze continues to be directed toward the first display unit 27 for, for example, 0.5 seconds or more.

[0080] The recording control unit 34A records information indicating that the driver's line of sight is directed toward the first display unit 27 in association with the video.

[0081] When the playback control unit 35 displays the video played back on the first display unit 27, the display control unit 42A displays information indicating the first range identified by the range identification unit 41 during the period in which the gaze detection unit 43A detects that the vehicle driver's gaze is directed toward the first display unit 27.

[0082] Similarly, in the playback device 50, when the playback control unit 73 displays the played back video on the second display unit 63, information indicating the first range identified by the range identification unit 41 is displayed during the period in which the gaze detection unit 43A detects that the gaze of the vehicle driver is directed toward the first display unit 27.

[0083] (Recording Process) Next, the flow of the recording process will be described with reference to Fig. 13. The processes in steps S124, S125, and S126 shown in Fig. 13 are the same as those in steps S104, S102, and S103 in the flowchart shown in Fig. 7.

[0084] The recording and playback control device 30A starts shooting, normal recording, event detection, and gaze detection (step S121). More specifically, the recording and playback control device 30A starts shooting using the front camera 21, rear camera 22, and gaze detection camera 24A using the shooting control unit 31. The recording and playback control device 30A generates a shooting file for each video image of a predetermined period from the video images recorded in the buffer memory 32 using the shooting data processing unit 33. The recording and playback control device 30A records the shooting file in the recording unit 23 using the recording control unit 34A. The recording and playback control device 30A detects an event based on the detection result of the acceleration sensor 24 using the event detection unit 36. The recording and playback control device 30A detects the driver's gaze direction from the video images captured by the line detection camera 24A using the gaze detection unit 43A. The recording and playback control device 30A proceeds to step S122.

[0085] The recording and reproduction control device 30A determines, using the gaze detection unit 43A, whether the driver's gaze is directed toward the first display unit 27 (step S122). If the gaze detection unit 43A determines that the driver's gaze is directed toward the first display unit 27 (Yes in step S122), the recording and reproduction control device 30A proceeds to step S123. If the gaze detection unit 43A does not determine that the driver's gaze is directed toward the first display unit 27 (No in step S122), the recording and reproduction control device 30A proceeds to step S124.

[0086] If it is determined that the driver's line of sight is directed toward the first display unit 27 (Yes in step S122), the recording and playback control device 30A assigns line of sight information to the video to be recorded (step S123). More specifically, the recording and playback control device 30A assigns line of sight information including a period during which it is determined that the line of sight is directed toward the first display unit 27 to the captured file recorded in the recording unit 23 using the captured data processing unit 33. The recording and playback control device 30A stores the recorded data with the line of sight information assigned in the recording unit 23 using the recording control unit 34A. The recording and playback control device 30A proceeds to step S124.

[0087] (Playback Processing) Next, the flow of the playback processing will be described with reference to Fig. 14. The processing in steps S131 to S132 and steps S136 to S138 shown in Fig. 14 is similar to the processing in steps S111 to S112 and steps S114 to S116 in the flowchart shown in Fig. 8.

[0088] If it is determined that rearward video is being played back (Yes in step S132), the recording and playback control device 30A starts playback of the event data or normally recorded data to be played back, and displays the played back rearward video or video including the rearward video (step S133). More specifically, the recording and playback control device 30A starts playback of the event data or normally recorded data to be played back using the playback control unit 35, and outputs a video signal to display the rearward video or video including the played back event data or normally recorded data, thereby displaying the video on the first display unit 27. After step S133, the recording and playback control device 30A proceeds to step S134.

[0089] The recording and playback control device 30A determines whether or not the driver is facing the first display unit 27 (step S134). More specifically, if the event data or normally recorded data being played back contains information indicating that the driver is facing the first display unit 27, the recording and playback control device 30A determines that the driver is facing the first display unit 27. If the recording and playback control device 30A determines that the driver is facing the first display unit 27 (Yes in step S134), the process proceeds to step S135. If the recording and playback control device 30A does not determine that the driver is facing the first display unit 27 (No in step S134), the process proceeds to step S136.

[0090] If it is determined that the driver is facing the first display unit 27 (Yes in step S134), the recording and playback control device 30A adds information indicating the first range to the rearward video being played back and displays it (step S135). More specifically, the recording and playback control device 30A generates a video signal including the information indicating the first range for the rearward video of the event data or normal recording data being played back by the playback control unit 35, and outputs the video signal to the first display unit 27 via the display control unit 42A, thereby displaying the video on the first display unit 27. The recording and playback control device 30A proceeds to step S136.

[0091] (Effects) As described above, in this embodiment, when the played-back video is displayed on the second display unit 63, information indicating the first range is displayed during the period in which it is detected that the vehicle driver's line of sight is directed toward the first display unit 27. According to this embodiment, whether the video is normally recorded or event data, it is possible to clearly determine the range displayed as a digital inner mirror during playback and whether the vehicle driver looked at the digital inner mirror. According to this embodiment, it is possible to identify the range in which the vehicle driver checked behind using the digital inner mirror during the period in which the video was played back. According to this embodiment, when an accident or the like occurs, it is possible to understand to what extent the vehicle driver checked the causative events, etc.

[0092] [Third Embodiment] The vehicle recording and playback device 10 according to this embodiment will be described with reference to Figures 15 and 16. Figure 15 is a flowchart showing the flow of recording processing in a recording and playback control device according to a third embodiment. Figure 16 is a flowchart showing the flow of playback processing in a recording and playback control device according to the third embodiment. The vehicle recording and playback device 10 of this embodiment differs from the first embodiment in the processing in the event detection unit 36, recording control unit 34, and display control unit 42.

[0093] In addition to detecting an event on the vehicle, the event detection unit 36 ​​also detects the direction in which the event occurs on the vehicle. More specifically, the event detection unit 36 ​​detects the direction in which the event occurs from the direction of acceleration acting on the vehicle.

[0094] For example, if an increase in the vehicle's rightward acceleration is detected around the time of the event detection, it is understood that an impact was applied to the vehicle from the left to the right. In this case, the event occurred to the left.

[0095] The recording control unit 34 stores the event data including information indicating the direction in which the event occurred in the recording unit 23. More specifically, the recording control unit 34 stores the event data in the recording unit 23 in association with the information indicating the direction in which the event was detected.

[0096] When displaying event data based on an event that has occurred behind the vehicle on the second display unit 63, the display control unit 42 displays information indicating the first range identified by the range identification unit 41.

[0097] (Recording Process) Next, the flow of the recording process will be described with reference to Fig. 15. The processes of steps S141, S142, and S144 shown in Fig. 15 are the same as those of steps S101, S102, and S104 in the flowchart shown in Fig. 7.

[0098] If it is determined that an event has been detected (Yes in step S142), the recording and playback control device 30 stores video footage from a predetermined period before and after the time point at which the event was detected as event data, along with information indicating the direction in which the event occurred (step S143). More specifically, the recording and playback control device 30 causes the shooting data processing unit 33 to select a shooting file that includes at least the time point at which the event occurred from the shooting files recorded in the recording unit 23 as event data, and causes the recording control unit 34 to store the event data and information indicating the direction in which the event occurred in the recording unit 23. The recording and playback control device 30 proceeds to step S144.

[0099] (Playback Processing) Next, the flow of the playback processing will be described with reference to Fig. 16. The processing in step S152, steps S154 to S155, and step S157 shown in Fig. 16 is similar to the processing in step S112, steps S113 to S114, and step S116 in the flowchart shown in Fig. 8.

[0100] The recording and playback control device 30 determines whether or not an operation to play back event data has been performed (step S151). The playback operation in this case includes the selection of a captured file, such as the event data to be played back, and an instruction to start playing the selected captured file. When the operation control unit 37 acquires operation information indicating an operation to play back event data, the recording and playback control device 30 determines that an operation to play back event data has been performed. When the operation control unit 37 determines that an operation to play back event data has been performed (Yes in step S151), the recording and playback control device 30 proceeds to step S152. When the operation control unit 37 does not determine that an operation to play back event data has been performed (No in step S151), the recording and playback control device 30 ends the process.

[0101] If the recording and playback control device 30 determines that rearward video is being played back (Yes in step S152), it determines whether the event data to be played back is event data in which a rearward event has been detected (step S153). More specifically, if the event occurring direction associated with the event data to be played back is rearward, the recording and playback control device 30 determines that the event data to be played back is event data in which a rearward event has been detected. If the recording and playback control device 30 determines that the event data to be played back is event data in which a rearward event has been detected (Yes in step S153), it proceeds to step S154. If the recording and playback control device 30 does not determine that the event data to be played back is event data in which a rearward event has been detected (No in step S153), it proceeds to step S156. Also, in step S156, the recording and playback control device 30 starts playing the event data to be played back and displays the played back video.

[0102] (Effects) As described above, in this embodiment, when event data based on an event that occurred behind the vehicle is displayed on the second display unit 63, information indicating the first range is displayed. According to this embodiment, the range displayed on the digital inner mirror during playback for event data that occurred behind the vehicle can be clarified. According to this embodiment, the range that the driver of the vehicle can check behind the vehicle using the digital inner mirror during the period of the played back video can be identified. According to this embodiment, it is possible to understand to what extent the driver of the vehicle was able to check the causative events, etc., of an event such as an accident.

[0103] The recording / playback device for vehicle and the playback device according to the present disclosure have been described so far, but the present disclosure may be embodied in various different forms other than the above-described embodiments.

[0104] The components of the illustrated recording / playback device and playback device for vehicles are conceptual functional components and do not necessarily have to be physically configured as shown in the drawings. In other words, the specific form of each device is not limited to that shown in the drawings, and all or part of each device may be functionally or physically distributed or integrated in any unit depending on the processing load and usage status of each device.

[0105] The configuration of the vehicle recording / playback device and playback device is realized, for example, as software, by a program loaded into memory. In the above embodiments, the functional blocks are described as being realized by the cooperation of these hardware and software. In other words, these functional blocks can be realized in various forms, using only hardware, only software, or a combination of both.

[0106] The above-described components include those that can be easily imagined by a person skilled in the art and those that are substantially the same. Furthermore, the above-described configurations can be appropriately combined. Furthermore, various omissions, substitutions, or modifications of the configurations are possible within the scope of the gist of the present invention.

[0107] (Other Embodiments) The above playback process may be executed by the playback control device 70 of the playback device 50. In this case, the process performed by the operation control unit 37 is executed by the operation control unit 72, and the process performed by the display control unit 42 is executed by the display control unit 74. In this case, the event data or normal recording data captured by the recording / playback device 10 is added with the first range and stored on the memory card. As a result, when the playback device 50 acquires the video via the I / F 61, information indicating the first range is added to the rear video.

[0108] Although the recording / reproducing control method has been described above as being executed by a recording / reproducing device, it may also be executed by a recording / reproducing system.

[0109] While the above description has been given for the case where normal recording processing is performed, the same applies to the case where recording is started after an event is detected. In this case, the video resulting from the event is the video recorded from the time the event is detected and recording is started until a predetermined period of time has elapsed, and an example of the predetermined period is a period of approximately 10 seconds or more and 60 seconds or less.

[0110] The configuration of the present disclosure may be such that, when video recorded by the recording control unit 34 of the recording and playback control device 30 shown in Fig. 1 is played back by the playback control device 70 shown in Fig. 5 and displayed on the second display unit 63, the video recorded by the recording control unit 34 is played back by the playback control unit 73 and displayed on the second display unit 63. In such a case, the configuration of the present disclosure realized by the playback control device 70 can be expressed as in Supplementary Notes 1 to 5 below.

[0111] (Supplementary Note 1) A playback control device comprising: an image acquisition unit that acquires image captured by a rear camera that captures images of the rear of a vehicle and information indicating a range in the image to be displayed on a first display unit so that a driver of the vehicle can check the rear of the vehicle; a playback control unit that plays back the image acquired by the image acquisition unit; and a display control unit that displays the information acquired by the image acquisition unit indicating the range to be displayed on the first display unit when the playback control unit causes the played back image to be displayed on a second display unit.

[0112] (Supplementary Note 2) The playback control device described in Supplementary Note 1, wherein the video acquisition unit further acquires information indicating that the line of sight of the driver of the vehicle is directed toward the first display unit, and when the playback control unit causes the second display unit to display the video played back by the playback control unit, the display control unit displays information indicating the range to be displayed on the first display unit during a period when it is detected that the line of sight of the driver of the vehicle is directed toward the first display unit, based on the information acquired by the video acquisition unit.

[0113] (Supplementary Note 3) The playback control device according to Supplementary Note 1 or 2, wherein when the playback control unit causes the second display unit to display the event data acquired by the video acquisition unit, the display control unit causes the first display unit to display information acquired by the video acquisition unit indicating a range to be displayed.

[0114] (Supplementary Note 4) The playback control device described in Supplementary Note 3, wherein the video acquisition unit further acquires, in addition to the event data, information indicating a direction in which the event occurred in the event data, and when the display control unit causes the second display unit to display the event data based on an event that occurred behind the vehicle, the display control unit displays information acquired by the video acquisition unit indicating a range to be displayed on the first display unit.

[0115] (Supplementary Note 5) A playback control method in which a playback control device executes the following steps: an image acquisition step of acquiring an image captured by a rear camera that captures an image of the rear of a vehicle and information in the image indicating a range to be displayed on a first display unit so that a driver of the vehicle can check the rear of the vehicle; a playback control unit step of playing back the image acquired in the image acquisition step; and a display control step of displaying, when the image played back in the playback control step is to be displayed on a second display unit, the information acquired in the image acquisition step indicating the range to be displayed on the first display unit.

[0116] In the above Supplementary Notes 1 to 5, the image acquisition unit refers to the input control unit 71.

[0117] The recording and playback control device, playback control method, and program of the present disclosure can be used in, for example, a digital inner mirror type drive recorder, a navigation system, a smartphone, or a recording and playback system such as a PC.

[0118] REFERENCE SIGNS LIST 10 Vehicle recording and playback device 21 Front camera 22 Rear camera 23 Recording unit 24 Acceleration sensor 25 Operation unit 26 GNSS receiving unit 27 First display unit 30 Recording and playback control device 31 Shooting control unit 32 Buffer memory 33 Shooting data processing unit 34 Recording control unit 35 Playback control unit 36 ​​Event detection unit 37 Operation control unit 38 Position information acquisition unit 41 Range identification unit 42 Display control unit 50 Playback device 61 I / F 62 Operation unit 63 Second display unit 70 Playback control device 71 Input control unit 72 Operation control unit 73 Playback control unit 74 Display control unit

Claims

1. A camera control unit that acquires video footage captured by a rear camera that photographs the rear of the vehicle, A range identification unit that identifies a first range to be displayed on a first display unit for the driver of the vehicle to check the rear of the vehicle, based on the video acquired by the aforementioned shooting control unit, A recording control unit records the video acquired by the aforementioned shooting control unit to a recording unit, A playback control unit that plays back the video recorded by the recording control unit, When the playback control unit plays back the video and displays it on the first display unit or a second display unit different from the first display unit in a second range that is wider than the first range, the display control unit displays information indicating the first range on the video displayed in the second range, A recording and playback control device equipped with the following features.

2. When the display control unit causes the second display unit, which has a smaller aspect ratio than the first display unit, to display the image in a second range that is wider than the first range, it causes the display control unit to display information indicating the first range in the image displayed in the second range. The recording and playback control device according to claim 1.

3. When the display control unit causes the first display unit to display the image in a second range that is wider than the first range and has a smaller aspect ratio than the first range, it causes the display control unit to display information indicating the first range in the image displayed in the second range. The recording and playback control device according to claim 1.

4. A gaze detection unit that detects the gaze of the driver of the vehicle, Furthermore, The recording control unit records information indicating that the driver of the vehicle is looking towards the first display unit, in association with the video. When the display control unit causes the playback control unit to display the video it has played back on the first display unit or the second display unit within the second range, it displays information indicating the first range on the video displayed within the second range for the period during which the gaze detection unit detects that the vehicle driver's gaze is directed toward the first display unit. The recording and playback control device according to claim 1.

5. An event detection unit that detects an event in the vehicle and the direction in which the event occurs in the vehicle. Furthermore, The recording control unit records the video for a predetermined period based on the time when the event detection unit detected the event, and information indicating the direction in which the event occurred, as event data in the recording unit. The playback control unit plays back the event data recorded by the recording control unit. When the display control unit displays the event data, which was reproduced by the playback control unit and which occurred at the rear of the vehicle, on the first display unit or the second display unit within the second range, it displays information indicating the first range. The recording and playback control device according to claim 1.

6. The range identification unit identifies the first range to be displayed on the vehicle's digital rearview mirror based on the image acquired by the shooting control unit. The display control unit causes the video to display information indicating the range displayed on the vehicle's digital rearview mirror. The recording and playback control device according to claim 1.

7. A playback control step that plays back the video captured and recorded by a rear camera that films the rear of the vehicle, When the video played back in the playback control step is displayed on a first display unit or a second display unit different from the first display unit, in a second range wider than the first range, for the driver of the vehicle to check the area behind the vehicle, the display control step includes displaying information indicating the first range on the video, A playback control method performed by a playback device.

8. On the computer, A playback control step that plays back the video captured and recorded by a rear camera that films the rear of the vehicle, When the video played back in the playback control step is displayed on a first display unit or a second display unit different from the first display unit, in a second range wider than the first range, for the driver of the vehicle to check the area behind the vehicle, the display control step includes displaying information indicating the first range on the video, A program that executes the command.