JP2022145726A - Recording control device and recording control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording control device and a recording control method with which it is possible to determine the preservation period of video data in accordance with the feeling levels of occupants.

SOLUTION: A recording control device 50 comprises: a video data acquisition unit 51 for acquiring video data in which a video around a vehicle is filmed; an occupant feeling assessment unit 52 for estimating the feeling of occupants on the basis of information from a biometric sensor that detects the biometric information of occupants in the vehicle interior and assessing the feeling levels of the occupants; and a recording processing unit 53 for determining the preservation period of video data on the basis of the occupant feeling levels and causing a recording unit to preserve the video data. The occupants include a driver and a fellow passenger, and the occupant feeling assessment unit 52 assesses the occupant feeling level of each of the driver and the fellow passenger and assesses an overall occupant feeling level by the occupant feeling level of the driver and the occupant feeling level of the fellow passenger having been weighted using the biometric information of the fellow passenger.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a recording control device and recording control method mounted on a vehicle.

A recording control device mounted on a vehicle continuously takes pictures of the surroundings of the vehicle, such as the front and rear of the vehicle, and records the images. The recording control device stores captured images in a storage medium, but since the capacity of the storage medium is limited, after storing a plurality of pieces of image data for a certain period of time, the older image data is sequentially overwritten. Save new video.

Patent Literature 1 discloses an in-vehicle device control device that includes a biological information acquisition section, an emotion estimation section, and an in-vehicle device control section. The biometric information acquisition unit acquires biometric information from a biosensor that measures biometric information of a driver or a fellow passenger of the vehicle. The emotion estimating unit obtains the magnitude of change in the value indicating the degree of emotion of the driver or the passenger using the biometric information. The in-vehicle equipment control unit controls the operation of the in-vehicle equipment provided in the vehicle when the magnitude of change in the value obtained by the emotion estimating unit exceeds a predetermined threshold. The in-vehicle equipment is an imaging device provided inside and outside the vehicle, and the in-vehicle equipment control unit functions to record video data so as to include the timing of sudden changes in emotions.

JP 2017-136922 A

By the way, when the driver is smiling, it is considered that there is no danger around the vehicle, and there is little need to leave video data. On the other hand, when the driver's expression is serious, it is assumed that the surroundings of the vehicle are becoming more dangerous or that an unpleasant situation is occurring, and the need to store video data increases. In the in-vehicle device control device described in Patent Document 1, video data including the timing at which the emotion of the driver or passenger of the vehicle suddenly changes is stored. could not.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording control apparatus and a recording control method capable of determining the retention period of video data to be stored according to the passenger's emotion level. to provide.

A recording control device according to one aspect of the present invention includes a video data acquisition unit that acquires video data obtained by capturing a video around a vehicle; an occupant emotion determination unit for determining the occupant emotion level by estimating the includes the driver and fellow passengers, and the passenger emotion determination unit determines the passenger emotion levels of the driver and fellow passengers, and uses the driver's passenger emotion level and the passenger's biological information A comprehensive passenger feeling level is determined by the weighted passenger feeling level of the fellow passenger.

Another aspect of the present invention is a recording control method. In this recording control method, the computer acquires image data obtained by photographing an image of the surroundings of the vehicle; A step of determining an emotional level, and a step of determining a retention period of video data based on the determined passenger emotional level and recording the video data in a recording unit are executed. It includes determining the respective occupant emotion levels for the driver and the passengers, and providing a more comprehensive occupant emotion level for the driver and the occupant emotion levels for the passengers weighted using the biometric information of the passengers. Determine occupant emotional level.

According to the present invention, the holding period of video data can be determined according to the passenger's emotional level.

1 is a block diagram showing the configuration of a drive recorder including a recording control device according to Embodiment 1; FIG. FIG. 4 is a schematic diagram for explaining a recording method based on the passenger's emotional level; FIG. 4 is a chart showing an example of retention periods according to passenger emotion levels; FIG. 4 is a flow chart showing the procedure of video data recording processing in the recording control device. FIG. 3 is a schematic diagram for explaining information about recorded video data; 10 is a flow chart showing the procedure of retention period determination processing of the recording control apparatus according to the second embodiment.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on preferred embodiments with reference to FIGS. 1 to 6. FIG. The same or equivalent constituent elements and members shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted.

(Embodiment 1)
FIG. 1 is a block diagram showing the configuration of a drive recorder 100 including a recording control device 50 according to the first embodiment. The drive recorder 100 is mounted on a vehicle, continuously takes pictures of the surroundings of the vehicle, such as the front, sides, and rear of the vehicle, and records video data. The drive recorder 100 records the captured video in the recording unit, but since the capacity of the recording unit is limited, the video data is sequentially deleted based on the retention period described later, thereby creating new video data. Record. The recording control device 50 of the drive recorder 100 estimates the emotions of the occupants in the vehicle, determines the occupant emotion levels, and determines the holding period of the video data.

The drive recorder 100 includes an imaging unit 10, a recording unit 20, a biosensor 30, an input/output interface 40, a clock unit 41, a recording control device 50, and the like. The imaging unit 10 is a camera having a detector such as a CCD, for example, and images the surroundings of the vehicle such as the front of the vehicle. The imaging unit 10 acquires images continuously in terms of time, and sends the acquired image data to the image data acquisition unit 51 of the recording control device 50, which will be described later.

The recording unit 20 is, for example, a detachable medium such as an SD card or a USB memory, or a hard disk, and is capable of recording and deleting video data acquired by the video data acquisition unit 51 . By making the recording unit 20 detachable from the drive recorder 100, it is possible to remove the recording unit 20 from the drive recorder 100 and reproduce the video on another PC or the like.

The biosensor 30 is, for example, a camera that captures an image of the body such as the face of an occupant in the vehicle, and detects the biometric information of the occupant. The biometric information detected by the biosensor 30 is output to the recording control device 50 . An occupant emotion determination unit 52 of the recording control device 50, which will be described later, estimates the occupant's emotion based on the biometric information acquired from the biosensor 30, and determines the occupant emotion level.

If the biosensor 30 is a camera that captures the face of the occupant, the occupant emotion determination unit 52 determines whether the facial expression is a smiling expression, a stern expression, or an angry expression based on the movement of the occupant's mouth, eyes, or the like. Image recognition is performed to estimate the emotions of the occupants. The biosensor 30 may be a microphone that acquires the occupant's voice, or a sensor that measures the occupant's heart rate, breathing rate, body temperature, etc. Keyword detection by voice recognition, voice inflection, occupant's heart rate and breathing rate Various sensors can be used that can infer the emotions of the occupant based on, for example, body temperature. Also, as a method for estimating the emotions of the occupant based on the biometric information acquired by the biosensor 30, known techniques including the above-described image recognition method can be used.

The input/output interface 40 acquires vehicle speed information, position information, and the like from an external device. The timer 41 measures the date and time. The drive recorder 100 may add speed information, position information, and the like obtained by the input/output interface 40 and date and time information obtained by the timer 41 to the video data and record the video data. The clock unit 41 is used as appropriate for time measurement in the recording control device 50 and the like.

The recording control device 50 has a video data acquisition section 51 , an occupant emotion determination section 52 and a recording processing section 53 . The recording control device 50 is configured by, for example, a CPU, etc., and operates according to a computer program to execute the processing by each of the above-described units. The storage unit 50a is composed of a data storage device such as a RAM (Random Access Memory), a flash memory, a hard disk storage device, etc., and stores computer programs and the like executed by the recording control device 50 .

The video data acquisition unit 51 acquires video data captured by the imaging unit 10 , performs processing such as data compression, and outputs the data to the recording processing unit 53 . The video data acquisition section 51 may be configured to include the imaging section 10 .

The occupant emotion determination unit 52 estimates the occupant's emotion based on the biometric information from the biosensor 30, and determines the occupant emotion level. The biosensor 30 is, for example, an in-vehicle camera, and the occupant emotion determination unit 52 determines the occupant emotion level from the photographed expression of the occupant and the degree of opening of the eyes and mouth. The biosensor 30 may be a thermo camera and a sensor for pulse and heart rate measurement. The occupant emotion determination unit 52 determines the occupant emotion level from the occupant's body temperature, pulse or heart rate. The occupant's emotion level is multistage, and the occupant's emotion determination unit 52 determines the occupant's emotion from moment to moment into the occupant's emotion level from 1 to 5, for example. The occupant emotion determination unit 52 sets the occupant emotion level to 1 when the occupant is in an emotional state such as discomfort or anger, and sets the occupant emotion level to 5 when the occupant is in a comfortable state or an emotional state such as joy. judge. The occupant emotional level 3 is, for example, a calm state, the occupant emotional level 2 is between the occupant emotional levels 1 and 3, and the occupant emotional level 4 is between the occupant emotional levels 5 and 3.

The recording processing unit 53 generates a delimiter signal for delimiting the video data based on the occupant emotion level determined by the occupant emotion determination unit 52, and controls the recording of the video data acquired from the video data acquisition unit 51 to the recording unit 20. do. The delimiter signal is used to delimit the image data acquired when the passenger's emotional level changes, and includes the passenger's emotional level and the retention period of the video data determined based on the passenger's emotional level. For example, if the occupant is in an emotional state such as discomfort or anger and the occupant emotional level is 1, the holding period is lengthened, and if the occupant is in a comfortable state or an emotional state such as joy and the occupant emotional level is 5 Shorten the retention period.

In addition, the recording processing unit 53 stores the retention period in the storage unit 50a in association with the identification information (for example, serial number or file name) of the video data recorded in the recording unit 20. A process of deleting the corresponding video data from the recording unit 20 is performed.

FIG. 2 is a schematic diagram for explaining a recording method based on passenger emotion levels. In the example shown in FIG. 2, the occupant emotion determination unit 52 determines the occupant emotion level in five stages. The occupant emotion determination unit 52 determines occupant emotion levels 3, 2, 4, 5, . . . as shown in FIG. The video data acquisition unit 51 sequentially generates video data of time length ΔT as one video file, and video data #1, #2, #3, . . . are recorded in the recording unit 20. . The time length of video data #1 to #5 is ΔT. When the occupant's emotional level changes from 3 to 2, the recording processing unit 53 divides the video data based on the division signal, generates video data #6 having a time length shorter than ΔT, and causes the recording unit 20 to record it. Image data #1 to #6 are added with a passenger emotional level 3 and a retention period corresponding to the passenger emotional level.

FIG. 3 is a chart showing an example of retention periods according to passenger emotion levels. If the occupant is in an emotional state such as discomfort or anger and the occupant emotional level is 1, for example, the video data retention period is set to 48 hours. As the occupant's emotional level increases from 1, the retention period is gradually shortened, and when the occupant is in an emotional state such as a comfortable state or joy and the occupant's emotional level is 5, the retention period is set to 30 minutes or the like. Further, when the passenger's emotion level is 1, there may be a form in which the image data is retained for an indefinite period, and is erased only when overwriting is required.

Next, the operation of the recording control device 50 will be described based on the video data recording process. FIG. 4 is a flow chart showing the procedure of video data recording processing in the recording control device 50 . The drive recorder 100 acquires the video data shot by the imaging unit 10 by the video data acquisition unit 51 of the recording control device 50, and after recording one video data in the recording unit 20, stores the next video data in the recording unit. 20 will be described. It is assumed that the image data is recorded in the recording unit 20 as data divided by the time length ΔT if there is no change in the passenger's emotional level.

The recording processing section 53 starts a timer (S1), and determines whether or not there is a change in the occupant's emotion level determined by the occupant's emotion determining section 52 (S2). If there is a change in the occupant's emotional level (S2: YES), the recording processing unit 53 divides the video data by the division signal, records the video data in the recording unit 20 before ΔT has elapsed (S3), and ends the process. .

If there is no change in the occupant emotion level determined by the occupant emotion determination unit 52 (S2: NO), the recording processing unit 53 determines whether or not ΔT has elapsed (S4). When determining that ΔT has not elapsed (S4: NO), the recording processing unit 53 returns to step S2 and repeats the processing. If the recording processing unit 53 determines that ΔT has elapsed (S4: YES), the recording processing unit 53 records the video data in the recording unit 20 (S3), and ends the process.

By repeating the processing shown in FIG. 4, the video data is recorded in the recording unit 20 in sequence. FIG. 5 is a schematic diagram for explaining information about recorded video data. The image data #1 to #6 have an occupant emotion level of 3 and a retention period of 12 hours. After that, the image data #7 to #9 have the passenger emotion level of 2 and the holding period is 24 hours. The image data #10 has an occupant emotion level of 4 and a holding period of 4 hours.

As described above, the recording processing unit 53 stores the holding period in the storage unit 50a in association with the identification information of the video data, and deletes the corresponding video data from the recording unit 20 when the holding period has passed. process. For example, if each video data recorded as shown in FIG. 5 has a time length ΔT of about 1 minute, the video data #1 to #10 are recorded for about 10 minutes. Of the video data #1 to #10, the video data #10 is deleted after the retention period has passed the earliest, then the video data #1 to #6 are deleted in order, and then the video data #7 to #10 are deleted in order. Deleted.

The recording control device 50 quickly deletes video data recorded when the driver, who is a passenger of the vehicle, is in a comfortable state or an emotional state such as joy, and removes the video data when the driver is in an uncomfortable state or an emotional state such as anger. The video data recorded when it is in is processed to be stored for a long time. When the occupant of the vehicle is in an uncomfortable state or in an emotional state such as anger, the recording control device 50 detects that there is an abnormal situation such as a near-miss in the surroundings of the vehicle, or that an accident such as an accident is likely to occur in the surroundings of the vehicle. Judging that it is a situation, the video data can be left in the recording unit 20 for a long time. In addition, the occupant of the vehicle is not limited to the driver, and the occupant emotion level may be determined for fellow passengers as well. Also, the passenger emotional level of the driver and the passenger emotional level of the fellow passenger may be determined in advance, and these may be comprehensively determined to calculate the passenger emotional level. At this time, the occupant's emotional level of the fellow passenger may be weighted by detecting that the passenger is sleeping, that the passenger is not watching the outside of the vehicle, or the like, from the biological information of the fellow passenger. More specifically, when it is considered that the fellow passenger does not pay attention to the outside of the vehicle and does not recognize the driving situation of the vehicle, the passenger's emotional level of the driver is given more importance than the passenger's emotional level of the fellow passenger. It is also possible to determine a comprehensive occupant emotional level.

The occupant emotion determination unit 52 of the recording control device 50 stores the history of the occupant emotion level, and evaluates whether the occupant emotion level can be appropriately determined in the set multi-steps. You may make it change the reference|standard of judgment. For example, when the occupant's emotion level is evaluated in five stages, if the occupant's emotion level changes from 1 to 3 for a certain period of time (for example, one month), the emotion of the occupant It is determined that the central value of the level is low, and the central value and range of the determination level are changed so that the passenger emotion level is determined to be 1-5. Also, the reference may be set for each of a plurality of occupants who board the vehicle.

An occupant emotion determination unit 52 changes the criteria for occupant emotion level determination based on the history of occupant emotion levels for each of a plurality of occupants boarding the vehicle, thereby performing multistage evaluation of the occupant emotion level according to the nature of the occupant. can be performed well.

(Embodiment 2)
In the first embodiment, the image data retention period is determined according to the passenger's emotional level, but the image data retention period may be determined according to the amount of change in the passenger's emotional level. Let s(x) be the occupant emotion level at time x, s(t) be the occupant emotion level at current time t, and s(t−1) be the occupant emotion level at past time t−1. Change amount α = s(t)/s(t-1)
Calculated by

Assume that the occupant's emotional level is low when the occupant is in an emotional state such as discomfort or anger, and the occupant's emotional level is high when the occupant is in a comfortable state or an emotional state such as joy. The amount of change α in the occupant's emotional level becomes smaller than 1 when the occupant changes from a comfortable state or an emotional state such as joy to an uncomfortable state or an emotional state such as anger. Conversely, when the occupant changes from an emotional state such as discomfort or anger to a state of comfort or joy, the amount of change α in the occupant's emotional level becomes greater than one.

Using this change amount α of the occupant's emotional level, the holding period T (time) is
T=1/(α×k)
and Here, k is a constant of proportionality, which can be arbitrarily set according to the installation environment of the recorder, personal adjustment, and the like. When the occupant changes from a comfortable state or an emotional state such as joy to an emotional state such as unpleasant state or anger, the amount of change α in the occupant's emotional level becomes smaller than 1, so the retention period T is inversely proportional to α. become longer. In addition, when the occupant changes from an unpleasant state or an emotional state such as anger to a comfortable state or an emotional state such as joy, the change amount α of the occupant's emotional level becomes larger than 1, so the retention period T becomes shorter.

When the occupant changes from a comfortable state or an emotional state such as joy to an uncomfortable state or an emotional state such as anger, if the change is large, a deletion prohibition flag may be added to the video data. In this case, when the amount of change α is smaller than a predetermined threshold value N, a deletion prohibition flag is added to the video data. For example, when the occupant's emotion level is judged in five stages, the threshold value N is set to 0.3 or the like, and a deletion prohibition flag is added to the video data when α<0.3.

FIG. 6 is a flowchart showing the procedure of retention period determination processing of the recording control device 50 according to the second embodiment. The recording processing unit 53 of the recording control device 50 acquires the current occupant emotion level s(t) and the past occupant emotion level s(t−1) from the occupant emotion determination unit 52 (S11). (t)/s(t-1) is calculated (S12). The recording processing unit 53 determines whether or not the amount of change α is smaller than a predetermined threshold value N (S13).

When the change amount α is smaller than the predetermined threshold value N (S13: YES), the recording processing unit 53 adds a deletion prohibition flag to the video data (S14), and ends the process. When the determination in step S13 is negative (S13: NO), the recording processing unit 53 calculates the retention period T=1/(α×k) (S15), and terminates the process.

The recording control device 50 lengthens the retention period T according to the amount of change α in the occupant's emotional level when the occupant changes from a comfortable state or an emotional state such as joy to an uncomfortable state or an emotional state such as anger. Thus, the video data can be left in the recording section 20 for a long time. In addition, when the occupant changes from an uncomfortable state or an emotional state such as anger to a comfortable state or an emotional state such as joy, the recording control device 50 changes the holding period T can be shortened so that the video data is deleted faster.

(Modification)
In Embodiments 1 and 2 described above, the recording control device 50 may change the retention period of the video data recorded immediately before to be longer when the change in the passenger's emotion level is large. In particular, if the emotional state of the occupant changes from comfortable or joyful to unpleasant or angry, and the emotional level of the occupant at that time changes significantly, the retention period of the video data recorded immediately before is extended. change in any direction.

If the emotional state of the occupant changes significantly from a comfortable state or joyful state to an unpleasant state or angered state, there is a possibility that a danger, accident, or other factor that makes the occupant uncomfortable has occurred around the vehicle. high. However, in such a case, since the occupant's emotional level is small before the occupant's emotional level changes significantly, the holding period T of the immediately preceding image data is set to be short. By lengthening the holding period of the video data, the video data including the previous video data can be held in the recording unit 20 for a long time. The recording control device 50 may add a deletion prohibition flag to the video data recorded immediately before when the occupant's emotional level changes significantly. When the retention period is lengthened, it is preferable to set the retention period to be the same as the retention period T of the video data immediately after the occupant's emotional level has changed significantly.

In the above-described embodiment, an example of judging the occupant's emotion level in multiple stages of five stages was shown, but the judgment of the occupant's emotion level is determined by setting arbitrary multiple stages such as 0 to 100 and -5 to 5. You may In addition, an example of holding periods of 30 minutes, 4 hours, 12 hours, . In addition, the recording control device 50 sets the retention period to 0 minutes when the emotional state such as a comfortable state or joy is the highest, for example, when the passenger emotional level is 5 in the above example, and does not record video data in the recording unit 20. can be

In the above-described embodiment, the emotions of the occupant are explained based on the emotional states of comfort, discomfort, joy and anger, but not limited to these emotional states, sadness, surprise, impatience, disgust, etc. Various occupant emotional states can be estimated and used by the system. In addition, the imaging unit 10 may capture images of not only the exterior of the vehicle but also the interior of the vehicle, and the recording unit 20 may record image data of the interior of the vehicle.

Next, features of the recording control device 50, the recording control method, and the recording control program according to the above-described embodiment and modifications will be described.
A recording control device 50 according to the embodiment and modifications includes a video data acquisition unit 51 , an occupant emotion determination unit 52 and a recording processing unit 53 . The image data acquisition unit 51 acquires image data obtained by shooting an image around the vehicle. The occupant emotion determination unit 52 estimates the occupant's emotion based on the information from the biosensor 30 that detects the occupant's biometric information in the passenger compartment, and determines the occupant's emotion level. The recording processing unit 53 determines the holding period of the image data based on the occupant emotion level determined by the occupant emotion determination unit 52 and causes the recording unit 20 to record the image data. Thereby, the recording control device 50 can determine the holding period of the video data according to the passenger's emotion level. For example, the recording control device 50 can leave video data in the recording unit 20 for a long time, assuming that an accident such as an accident may occur around the vehicle when the occupants of the vehicle are in an uncomfortable state or in an emotional state such as anger. . Also, the recording processing unit 53 determines the segmentation of the video data based on the occupant emotion level determined by the occupant emotion determination unit 52, and causes the recording unit to record the video data. Thereby, the recording control device 50 can determine the division position of the video data according to the passenger's emotion level.

Further, the occupant emotion determination unit 52 changes the criterion for determining the occupant emotion level based on the history of the estimated occupant emotion. Thereby, the recording control device 50 can evaluate the occupant emotion level in multiple stages according to the characteristics of the occupant.

Further, the recording processing unit 53 changes the holding period of the video data recorded immediately before when the change in the passenger feeling level determined by the passenger feeling determining unit 52 is large. As a result, the recording control device 50, for example, when there is a high possibility that a factor that makes the occupants uncomfortable, such as a danger or accident, has occurred in the surroundings of the vehicle. It can be changed to lengthen.

The recording processing unit 53 also determines the timing of deleting the video data from the recording unit 20 based on the retention period. As a result, the recording control device 50 can secure a free area for recording in the recording unit 20 having a limited recording capacity and record new video data.
The occupants include the driver and the fellow passengers. A comprehensive passenger emotional level is determined by the passenger emotional level of the fellow passenger weighted using . Thereby, the recording control device 50 can determine the holding period of the video data according to the overall passenger feeling level of the driver and the fellow passengers.

A recording control method according to an embodiment and modifications includes a video data acquisition step, an occupant emotion determination step, and a recording processing step. The image data acquisition step acquires image data obtained by photographing an image around the vehicle. The occupant emotion determination step estimates the occupant's emotion based on information from the biosensor 30 that detects the occupant's biometric information in the vehicle interior, and determines the occupant's emotion level. In the recording processing step, based on the passenger's emotional level determined in the passenger's emotion determining step, the video data retention period is determined and the video data is recorded in the recording unit 20 . With this recording control method, it is possible to determine the holding period of the video data according to the passenger's emotional level. For example, when a vehicle occupant is in an emotional state such as discomfort or anger, the image data can be left in the recording unit 20 for a long time, assuming that an accident such as an accident may occur around the vehicle.

A recording control program according to the embodiment and modifications causes a computer to execute a video data acquisition step, an occupant emotion determination step, and a recording processing step. The image data acquisition step acquires image data obtained by photographing an image around the vehicle. The occupant emotion determination step estimates the occupant's emotion based on information from the biosensor 30 that detects the occupant's biometric information in the vehicle interior, and determines the occupant's emotion level. In the recording processing step, based on the passenger's emotional level determined in the passenger's emotion determining step, the video data retention period is determined and the video data is recorded in the recording unit 20 . With this recording control program, it is possible to determine the holding period of video data according to the passenger's emotional level. For example, when a vehicle occupant is in an emotional state such as discomfort or anger, the image data can be left in the recording unit 20 for a long time, assuming that an accident such as an accident may occur around the vehicle.

The above has been described based on the embodiments of the present invention. Those skilled in the art will appreciate that these embodiments are illustrative and that various variations and modifications are possible within the scope of the claims of the present invention, and that such variations and modifications also fall within the scope of the claims of the present invention. It is about to be done. Accordingly, the description and drawings herein are to be regarded in an illustrative rather than a restrictive sense.

20 Recording Unit 30 Biosensor 50 Recording Control Device 51 Video Data Acquisition Unit 52 Passenger Emotion Judging Unit 53 Recording Processing Unit

Claims (2)

a video data acquisition unit that acquires video data obtained by shooting a video around the vehicle;
an occupant emotion determination unit that estimates the occupant's emotion based on information from a biosensor that detects the occupant's biometric information in the vehicle interior and determines the occupant's emotion level;
a recording processing unit that determines a holding period of the video data based on the occupant's emotional level and records the video data in a recording unit;
with
the occupants include a driver and passengers;
The occupant emotion determination unit determines the occupant emotion level of each of the driver and the fellow passenger, and weights the occupant emotion level of the driver and the biometric information of the fellow passenger. A recording control device characterized by determining a comprehensive passenger emotional level based on the passenger emotional level. the computer
a step of acquiring image data obtained by capturing an image around the vehicle;
a step of estimating the emotion of the occupant based on information from a biosensor that detects the biometric information of the occupant in the vehicle and determining the occupant's emotion level;
determining a holding period of the video data based on the occupant's emotional level and recording the video data in a recording unit;
and run
the occupants include a driver and passengers;
The occupant emotional level of each of the driver and the fellow passenger is determined, and the occupant emotional level of the driver and the occupant emotional level of the fellow passenger weighted using the biometric information of the fellow passenger are comprehensively evaluated. A recording control method characterized by determining an appropriate occupant emotional level.

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