JP2020188294A - Image display device and image display program - Google Patents

Abstract

To display images captured in substantially opposite imaging directions on the same screen such that the images are accurately recognizable.SOLUTION: An image display device 400 includes an image acquisition unit 401 that acquires a plurality of captured images obtained as an image capture result by one or more imaging units provided in a vehicle, and a display processing unit 402 that displays a first image having a first direction as an imaging direction and a second image having a second direction substantially opposite to the first direction as an imaging direction on a display unit after performing mirror image processing that inverts the left and right of either the first image or the second image when a plurality of captured images include the first image and the second image.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to an image display device and an image display program.

Conventionally, a technique for displaying a plurality of captured images as imaging results by one or more imaging units provided in a vehicle on the same screen has been studied. As one of such techniques, a technique for displaying a face image showing the face of a vehicle occupant and a front image showing the front of the vehicle is known.

Japanese Unexamined Patent Publication No. 2005-188998

However, in the conventional technique as described above, the image pickup direction of the face image and the front image is substantially opposite. Images captured in two captured images whose imaging directions are substantially opposite to each other are substantially mirror images of each other, and therefore, when those images are displayed on the same screen, the displayed contents are accurately recognized. It may not be possible.

Therefore, one of the problems of the present disclosure is to provide an image display device and an image display program capable of accurately and recognizablely displaying captured images having substantially opposite imaging directions on the same screen. is there.

An image display device as an example of the present disclosure includes an image acquisition unit that acquires a plurality of captured images obtained as an imaging result by one or more imaging units provided in a vehicle, and a plurality of captured images in a first direction in an imaging direction. When the first image is included and the second image whose imaging direction is a second direction substantially opposite to the first direction is included, for either the first image or the second image. A display processing unit for displaying the first image and the second image on the display unit after executing the mirror image processing for inverting the left and right sides is provided.

According to the image display device described above, one of the first image and the second image as captured images in which the captured images are substantially opposite is displayed on the display unit together with the other image after the left and right are inverted. Since it is displayed, it is possible to accurately and recognizable the captured images having substantially opposite imaging directions on the same screen.

In the image display device described above, in the display processing unit, one of the first image and the second image is an in-vehicle image showing the internal situation of the vehicle, and the other of the first image and the second image is the vehicle. In the case of an outside-vehicle image showing the outside situation of the vehicle, the inside-vehicle image and the outside-vehicle image are displayed on the display unit after performing mirror image processing on the inside-vehicle image. According to such a configuration, the mirror image processing is executed on the vehicle interior image and the vehicle exterior image that are less likely to cause a sense of discomfort even if the left and right sides are reversed. Therefore, the vehicle interior image and the vehicle exterior image are displayed on the same screen. It can be displayed in a form with little discomfort.

In this case, the display processing unit displays a face image showing the face of the occupant of the vehicle as an in-vehicle image, and displays a front image showing the situation in front of the vehicle as an outside image. According to such a configuration, the face image and the front image can be displayed on the same screen in a form with less discomfort.

Further, in this case, the display processing unit displays on the display unit a direction identification mark for identifying at least one of the eye orientation and the face orientation that can be included in the occupant's face. According to such a configuration, at least one of the occupant's eye orientation and face orientation can be displayed in a visually understandable manner.

In the image display device described above, the display processing unit displays on the display unit a mirror image identification mark for identifying which of the first image and the second image the mirror image processing has been executed. According to such a configuration, it is possible to facilitate the identification of the image on which the mirror image processing is performed.

Further, in the image display device described above, when all the imaging directions of the plurality of captured images are substantially the same, the display processing unit displays the plurality of captured images on the display unit without executing the mirror image processing. .. According to such a configuration, a plurality of captured images can be easily displayed as they are when there is no captured image whose imaging direction is substantially opposite.

An image display program as another example of the present disclosure includes an image acquisition step of acquiring an image obtained as an image capture result by one or more image pickup units provided in a vehicle, and an image capture image having a first direction as an image pickup direction. When the first image and the second image whose imaging direction is a second direction substantially opposite to the first direction are included, the left and right sides of the first image and the second image are left and right. After executing the mirror image processing to be inverted, the computer is made to execute the display processing step of displaying the first image and the second image on the display unit.

According to the image display program described above, one of the first image and the second image as captured images in which the captured images are substantially opposite is displayed on the display unit together with the other image after the left and right are inverted. Since it is displayed, it is possible to accurately and recognizable the captured images having substantially opposite imaging directions on the same screen.

FIG. 1 is an exemplary and schematic diagram for explaining an outline of a driving behavior confirmation system as an application target of the technology according to the embodiment. FIG. 2 is an exemplary and schematic block diagram showing a schematic hardware configuration of each device constituting the driving behavior confirmation system according to the embodiment. FIG. 3 is an exemplary and schematic diagram showing the relationship between the image pickup direction of the face image and the image pickup direction of the front image according to the embodiment. FIG. 4 is an exemplary and schematic diagram showing the function of the image display device according to the embodiment. FIG. 5 is an exemplary and schematic diagram showing an example of an image displayed on the display unit according to the embodiment. FIG. 6 is an exemplary and schematic diagram showing another example of the image displayed on the display unit according to the embodiment. FIG. 7 is an exemplary and schematic diagram showing still another example of the image displayed on the display unit according to the embodiment. FIG. 8 is an exemplary and schematic flowchart showing a series of processes executed by the image display device according to the embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The configurations of the embodiments described below, and the actions and effects brought about by the configurations, are merely examples and are not limited to the contents described below.

FIG. 1 is an exemplary and schematic diagram for explaining an outline of a driving behavior confirmation system as an application target of the technology according to the embodiment.

As shown in FIG. 1, the driving behavior confirmation system according to the embodiment records information on the driving behavior of the driver X1 who is one of the occupants of the vehicle V by the driver monitor 110 and the drive recorder 120, and the recorded driving. This is a system that transfers information on behavior to a PC (Personal Computer) 130 by a recording medium 150 and causes the operator X2 to confirm the transferred driving behavior information after the fact by the PC 130. The vehicle V is, for example, a truck of a carrier, and the PC 130 is, for example, an information processing device for back office operations of a carrier.

In the embodiment, the configuration in which the recording medium 150 is used for transferring the driving behavior information to the PC 130 will be described, but the transfer of the driving behavior information to the PC 130 is executed via a cloud server on the network. May be good. In this case, it is premised that at least one of the driver monitor 110 and the drive recorder 120 as the device on the vehicle V side and the PC 130 both have a network communication function. If both the device on the vehicle V side and the PC 130 have a network communication function, the operator X2 can confirm the information on the driving behavior of the driver X1 in real time.

FIG. 2 is an exemplary and schematic block diagram showing a schematic hardware configuration of each device constituting the driving behavior confirmation system according to the embodiment.

As shown in FIG. 1, as shown in FIG. 2, the driving behavior confirmation system according to the embodiment is mainly composed of a driver monitor 110, a drive recorder 120, and a PC 130.

The driver monitor 110 includes an imaging unit 111, a control unit 112, a storage unit 113, and an input / output unit 114.

The imaging unit 111 is a camera that acquires a face image showing the face of the driver X1 as one of the in-vehicle images showing the internal situation of the vehicle V (see also the alternate long and short dash line extending from the driver monitor 110 in FIG. 1). .. The expression "face image" includes not only the meaning of a still image at a certain timing but also the meaning as a moving image (video) which is a collection of still images at a plurality of consecutive timings.

Further, the control unit 112 is a processor that comprehensively controls the operation of the driver monitor 110. The control unit 112 executes various arithmetic processes required by the driver monitor 110.

Further, the storage unit 113 is a memory (and storage) for storing various data such as data generated by the driver monitor 110 and data acquired from the outside.

The input / output unit 114 is an interface for connecting the driver monitor 110 to the outside. In the example shown in FIG. 2, the driver monitor 110 is connected to the drive recorder 120 (input / output unit 124) via the input / output unit 114.

Further, like the driver monitor 110 described above, the drive recorder 120 also includes an imaging unit 121, a control unit 122, a storage unit 123, and an input / output unit 124.

The imaging unit 121 is a camera that acquires an outside image of the outside of the vehicle V, more specifically, a front image of the front of the vehicle V (one-dot chain line extending from the drive recorder 120 in FIG. 1). See also). As with the face image described above, the expression "front image" includes not only the meaning of a still image at a certain timing but also the meaning of a moving image (video) which is a collection of still images at a plurality of consecutive timings. There is.

Further, the control unit 122 is a processor that comprehensively controls the operation of the drive recorder 120. The control unit 122 executes various arithmetic processes required by the drive recorder 120.

Further, the storage unit 123 is a memory (and storage) for storing various data such as data generated by the drive recorder 120 and data acquired from the outside.

The input / output unit 124 is an interface for connecting the drive recorder 120 to the outside. In the example shown in FIG. 2, the drive recorder 120 is connected to the driver monitor 110 (input / output unit 114) via the input / output unit 124. Further, in the example shown in FIG. 2, various data stored in the storage unit 123 are transferred to the PC 130 via the recording medium 150 connected to the input / output unit 124.

On the other hand, the PC 130 includes a display unit 131, a control unit 132, a storage unit 133, and an input / output unit 134.

The display unit 131 is a display output device for visually providing information to the operator X2 as a user of the PC 130.

The control unit 132 is a processor that comprehensively controls the operation of the PC 130. The control unit 132 executes various arithmetic processes required for the PC 130.

The storage unit 133 is a memory (and storage) for storing various types of data such as data generated by the PC 130 and data acquired from the outside.

The input / output unit 134 is an interface for connecting the PC 130 to the outside. In the example shown in FIG. 2, in the example shown in FIG. 2, the recording medium 150 is connected to the input / output unit 134, so that various data stored in the storage unit 123 of the drive recorder 120 can be transferred. To. As another embodiment, the data held by the driver monitor 110 (in the storage unit 113 or the like) is transferred to the PC 130 via the input / output unit 134 via the recording medium 150 connected to the input / output unit 114. You may. Similarly, the data held by the drive recorder 120 (in the storage unit 123 or the like) may be transferred to the PC 130 via the input / output unit 134 via the recording medium 150 connected to the input / output unit 124. Further, the data of the driver monitor 110 and the data of the drive recorder 120 may be transferred to the PC 130 via a cloud server on the network, respectively.

With the above hardware configuration, the driving behavior confirmation system according to the embodiment captures the face image acquired by the image pickup unit 111 of the driver monitor 110 and the front image acquired by the image pickup unit 121 of the drive recorder 120 of the PC 130. By displaying the information on the display unit 131, it is possible to visually confirm the information on the driving behavior of the driver X1 by the operator X2 of the PC 130.

Here, the imaging direction of the face image, that is, the orientation of the imaging unit 111 of the driver monitor 110 and the imaging direction of the front image, that is, the orientation of the imaging unit 121 of the drive recorder 120 have a relationship as shown in FIG. have.

FIG. 3 is an exemplary and schematic diagram showing the relationship between the image pickup direction of the face image and the image pickup direction of the front image according to the embodiment.

In the example shown in FIG. 3, arrows A311 and A312 represent the directions of the left and right eyes of the driver X1, and arrows A321 represent the directions of the faces of the driver X1. Note that FIG. 3 shows an example in which the orientation of the eyes and the orientation of the face are substantially the same for the sake of simplicity of explanation, but in general, the orientations of the left and right eyes are the same as each other. However, the orientation of the eyes and the orientation of the face do not always match.

In the example shown in FIG. 3, when the orientation of the imaging unit 111 of the driver monitor 110, that is, the imaging direction of the face image is represented by the arrow A331, the eye orientation and the face orientation of the driver X1 are the imaging directions of the face image. The front direction is opposite to that of. Therefore, in this case, the imaging unit 111 acquires a face image in which the eyes and face of the driver X1 are captured from the front direction.

On the other hand, in the example shown in FIG. 3, when the imaging direction of the face image is represented by the arrow A341, the eye orientation and the face orientation of the driver X1 are relative to the front direction opposite to the imaging direction of the face image. The direction is tilted by the angle θ. Therefore, in this case, the imaging unit 111 acquires a face image in which the eyes and face of the driver X1 are captured from a direction tilted by an angle θ with respect to the front direction.

In the example shown in FIG. 3, the direction of the eyes and the direction of the face of the driver X1 are fixed and expressed so that the imaging direction of the face image changes, but such an expression is merely for convenience of explanation. Because of. In reality, the direction of the eyes and / or the direction of the face of the driver X1 changes, and the imaging direction of the face image is fixed.

Further, in the example shown in FIG. 3, the arrows A332 and A342 represent the imaging direction of the front image when the imaging direction of the face image is represented by the arrows A331 and A341, respectively. As can be seen from FIG. 1, in the embodiment, the orientation of the imaging unit 111 of the driver monitor 110 and the orientation of the imaging unit 121 of the drive recorder 120 are substantially opposite. Therefore, the image captured in the face image acquired by the imaging unit 111 and the image captured in the front image acquired by the imaging unit 121 are substantially in a so-called mirror image relationship in which the left and right sides are reversed.

By the way, conventionally, a technique for displaying a plurality of captured images as imaging results by one or more imaging units provided in a vehicle on the same screen has been studied.

However, in the conventional technique as described above, two captured images having substantially opposite imaging directions, such as the face image and the front image described above, may be displayed on the same screen. Images captured in two captured images whose imaging directions are substantially opposite to each other are substantially mirror images of each other, and therefore, when those images are displayed on the same screen, the displayed contents are accurately recognized. It may not be possible.

Therefore, in the embodiment, by realizing the image display device 400 having the functions as described below in the PC 130, it is possible to accurately recognize the captured images having substantially opposite imaging directions on the same screen. Realize to display.

FIG. 4 is an exemplary and schematic diagram showing the function of the image display device 400 according to the embodiment. In the embodiment, the "image display device" can also be expressed as a "driving behavior display device".

As shown in FIG. 4, the image display device 400 includes an image acquisition unit 401 and a display processing unit 402. These functions are realized, for example, as a result of the control unit 132 of the PC 130 reading and executing a predetermined image display program stored in the storage unit 133. In the embodiment, some or all of these functions may be realized only by dedicated hardware (circuit).

The image acquisition unit 401 acquires the face image acquired by the image pickup unit 111 of the driver monitor 110 and the front image acquired by the image pickup unit 121 of the drive recorder 120 via the recording medium 150.

The display processing unit 402 controls the display content of the display unit 131 of the PC 130. For example, the display processing unit 402 displays the face image and the front image on the same screen in the form shown in FIG. 5 below.

FIG. 5 is an exemplary and schematic diagram showing an example of an image displayed on the display unit 131 according to the embodiment.

As shown in FIG. 5, when displaying a face image and a front image whose imaging directions are substantially opposite to each other on the same screen, the display processing unit 402 performs mirror image processing on the face image. , Both the face image and the front image are displayed on the display unit 131.

That is, the display processing unit 402 executes mirror image processing for inverting the left and right instead of the image 510 shown in FIG. 5 (A) including the image 511 as the face image and the image 512 as the front image as they are. The image 520 shown in FIG. 5B, which includes an image 521 as a face image and an image 522 as a front image in which mirror image processing is not executed, is displayed on the display unit 131. The display areas 513 and 514 in the image 510 and the display areas 523 and 524 in the image 520 are both areas for displaying various setting information and information related to the time series of the moving image.

Here, the target to be mirror-image processed may be a front image instead of a face image, but it is better to invert the face image in which only the face of the driver X1 is shown so that the scenery outside the vehicle V is captured. There is less discomfort than reversing the front image. However, in this case, it is useful to be able to identify that the mirror image processing is being performed on the face image.

Therefore, the display processing unit 402 adds a mirror image identification mark 531 to the image 521 as a face image in the image 520 shown in FIG. 5 (B) to identify that the face image is subjected to mirror image processing. Superimpose. In the example shown in FIG. 5, the mirror image identification sign 531 is configured as the character string "* inversion", but the identification of whether or not the mirror image processing is being executed is performed by a sign in another mode such as an image. It may be realized.

In the example shown in FIG. 5, a configuration in which the images displayed on the same screen are two images, a face image and a front image, is exemplified, but the technique of the embodiment is a face image and a front image. It is also applicable to a configuration in which three or more images including images other than the image are displayed on the same screen, and two of the three or more images are displayed on the same screen. It can also be applied to various configurations. Examples of images other than the face image and the front image include, for example, a rear image as one of the outside images acquired by an imaging unit provided in the vehicle V so as to capture the situation behind the vehicle V, and a vehicle. An occupant image as one of the in-vehicle images acquired by an imaging unit provided on the vehicle V so as to image an occupant other than the driver X1 of the V can be considered.

As described above, in the embodiment, in the display processing unit 402, the plurality of captured images obtained as the imaging results by one or more imaging units provided in the vehicle V are the first image whose imaging direction is the first direction and the first image. When a second image whose imaging direction is a second direction substantially opposite to that of the first direction is included, a mirror image process is performed in which the left and right sides of the first image and the second image are inverted. After that, both the first image and the second image are displayed on the display unit 131.

However, needless to say, when the imaging directions of all the captured images displayed on the same screen are substantially the same, the above mirror image processing is not necessary. Therefore, the display processing unit 402 displays the plurality of captured images on the display unit 131 without executing the mirror image processing when all the imaging directions of the plurality of captured images are substantially the same.

By the way, the driving behavior confirmation system according to the embodiment performs various image processing such as fitting using a three-dimensional model of the face on the face image acquired by the imaging unit 111, so that the driver captured in the face image. It has a function of detecting the direction of the eyes and the direction of the face of X1 in the form of, for example, an angle with respect to the front direction opposite to the imaging direction of the face image. It should be noted that this function may be independently possessed by any one of the control unit 112 of the driver monitor 110, the control unit 122 of the drive recorder 120, and the control unit 132 of the PC 130, or two of these three. The above may be shared.

In the embodiment, the image acquisition unit 401 can acquire the eye orientation and the face orientation of the driver X1 detected from the face image based on the above functions together with the face image and the front image. In this case, if the direction of the eyes and the direction of the face of the driver X1 are also displayed on the display unit 131 together with the face image and the front image, the driving behavior of the driver X1 can be effectively confirmed.

Therefore, in the embodiment, the display processing unit 402 displays at least one of the eye orientation and the face orientation of the driver X1 on the display unit 131, for example, as in the example shown in FIG. 6 below.

FIG. 6 is an exemplary and schematic diagram showing another example of the image displayed on the display unit 131 according to the embodiment.

As shown in FIG. 6, the display processing unit 402 includes an image 601 as a face image on which the mirror image identification mark 611 is superimposed, an image 602 as a front image, various setting information, information on a time series of moving images, and the like. 621 is displayed in the image 600 including the display areas 603 and 604 in which the driver X1 is displayed, for identifying at least one of the eye orientation and the face orientation of the driver X1.

More specifically, the display processing unit 402 displays the direction identification sign 621 in the vicinity of the end portion of the image 601 as a face image corresponding to at least one of the eye orientation and the face orientation of the driver X1. Is displayed. In the example shown in FIG. 6, since the eyes and face of the driver X1 shown in the image 601 as a face image are facing the right side on the paper surface, the display processing unit 402 is the right side of the image 601 having a rectangular shape. A directional identification sign 621 having an elongated rectangular shape extending vertically along the right side is displayed in the vicinity of.

In the example shown in FIG. 6, the eye orientation and the face orientation of the driver X1 are substantially the same, but the two are not always the same. In this case, only the sign indicating the direction of the eyes may be displayed as the direction identification sign, only the sign indicating the direction of the face may be displayed as the direction identification sign, or the sign indicating the direction of the eyes and the face. Both the orientation marking and the orientation marking may be displayed separately as the orientation marking.

Further, in the embodiment, a marking having a shape and a display position different from that of the example shown in FIG. 6 may be displayed as long as the marking can identify at least one of the eye orientation and the face orientation of the driver X1. ..

Further, in the embodiment, as in the example shown in FIG. 7 below, at least one of the eye orientation and the face orientation of the driver X1 is emphasized as compared with the example shown in FIG. It may be displayed in.

FIG. 7 is an exemplary and schematic diagram showing still another example of the image displayed on the display unit 131 according to the embodiment.

As shown in FIG. 7, the display processing unit 402 includes an image 701 as a face image on which the mirror image identification mark 711 is superimposed, an image 702 as a front image, various setting information, information on a time series of moving images, and the like. In the image 700 including the display areas 703 and 704 in which the is displayed, two directional identification markings 721 and 722 for identifying at least one of the eye orientation and the face orientation of the driver X1 are displayed.

More specifically, the display processing unit 402 displays the direction identification sign 721 in the vicinity of the end portion of the image 701 as a face image corresponding to at least one of the eye orientation and the face orientation of the driver X1. Is displayed, and the direction identification sign 722 is also displayed in the vicinity of the end of the image 702 as the front image, which corresponds to at least one of the eye orientation and the face orientation of the driver X1.

In the example shown in FIG. 7, since the eyes and face of the driver X1 shown in the image 701 as the face image are facing the right side on the paper surface, the display processing unit 402 is the right side of the image 701 having a rectangular shape. A direction identification sign 721 having an elongated rectangular shape extending up and down along the right side is displayed in the vicinity of, and up and down along the right side in the vicinity of the right side of the image 702 having a rectangular shape. A direction identification sign 722 having an elongated rectangular shape extending to is displayed.

Based on the above configuration, the image display device 400 according to the embodiment executes the process according to the flow as shown in FIG. 8 below.

FIG. 8 is an exemplary and schematic flowchart showing a series of processes executed by the image display device 400 according to the embodiment. The series of processes shown in FIG. 8 is repeatedly executed until the display / reproduction of the face image and / or the front image as a moving image is completed.

As shown in FIG. 8, in the embodiment, first, in S801, the image acquisition unit 401 of the image display device 400 acquires a plurality of captured images acquired by one or more image capturing units provided in the vehicle V. In the embodiment, examples of the captured image include a face image acquired by the imaging unit 111 of the driver monitor 110, a front image acquired by the imaging unit 121 of the drive recorder 120, and the like.

Then, in S802, the display processing unit 402 of the image display device 400 has two captured images having different imaging directions, more specifically, substantially opposite imaging directions, among the plurality of captured images acquired in S801. Determine if there are two captured images. As another embodiment, a person determines whether or not there are two captured images having substantially opposite imaging directions, and the determination result is input to the image display device 400 by some means to perform subsequent processing. It is also possible to reflect it in.

If it is determined in S802 that there are captured images having different imaging directions, the process proceeds to S803. For example, when the face image and the front image are acquired as captured images, the imaging directions of the two are substantially opposite, so the process proceeds to S803.

Then, in S803, the display processing unit 402 of the image display device 400 executes a mirror image process of inverting the left and right of one of the two captured images having different imaging directions. When the face image and the front image are acquired as captured images, it is appropriate to perform mirror image processing on the face image for the reason described above.

When the process of S803 is executed, the process proceeds to S804. Further, even when it is determined in S802 that there are no captured images having different imaging directions, the process proceeds to S804.

Then, in S804, the display processing unit 402 of the image display device 400 displays a plurality of captured images on the same screen. More specifically, when there is a captured image for which mirror image processing has been executed in S803, the display processing unit 402 displays the captured image for which mirror image processing has been executed on the display unit 131 together with other captured images, and in S803, When there is no captured image for which mirror image processing has been executed, a plurality of captured images are displayed as they are on the display unit 131. Then, the process ends.

As described above, the image display device 400 according to the embodiment includes an image acquisition unit 401 and a display processing unit 402. The image acquisition unit 401 acquires a plurality of images obtained as an image pickup result by one or more image pickup units provided in the vehicle V, such as the image pickup unit 111 of the driver monitor 110 and the image pickup unit 121 of the drive recorder 120. The display processing unit 402 includes a plurality of captured images, a first image having a first direction as an imaging direction, and a second image having a second direction substantially opposite to the first direction as an imaging direction. In this case, the first image and the second image are displayed on the display unit 131 after performing mirror image processing for inverting the left and right sides of either one of the first image and the second image.

According to the image display device 400 described above, one of the first image and the second image as captured images in which the captured images are substantially opposite is displayed in the display unit together with the other image after the left and right are inverted. Since it is displayed on 131, it is possible to accurately and recognizable an captured image having substantially opposite imaging directions on the same screen.

Here, in the embodiment, the display processing unit 402 uses one of the above first image and the second image as an in-vehicle image showing the internal situation of the vehicle V, more specifically, the driver X1 of the vehicle V. A face image showing a face including eyes is displayed, and as the other of the above first image and the second image, an outside image showing the situation outside the vehicle V, more specifically, the situation in front of the vehicle V. Display the front image showing. Then, the display processing unit 402 performs mirror image processing on the face image, and then displays the face image and the front image on the display unit 131. According to such a configuration, the mirror image processing is executed on the face image and the front image, which are less likely to cause discomfort even if the left and right sides are reversed. Therefore, the face image and the front image are displayed on the same screen. It can be displayed in a form with little discomfort.

Further, in the embodiment, the display processing unit 402 has a direction identification mark 621 for identifying at least one of the eye orientation and the face orientation of the driver X1 as shown in FIG. 6 or 7. 721 and 722 are displayed on the display unit 131. According to such a configuration, the direction of the eyes and the direction of the face of the driver X1 can be displayed in a visually easy-to-understand manner. In the above, the example in which the eyes of the driver X1 are shown in the face image is mainly described, but the eyes are substantially shown in the face image because the eyes of the driver X1 are hidden by a hat or sunglasses. It is assumed that it is not. In such a case, since it is difficult to detect the direction of the eyes from the face image, the display position of the direction identification mark is substantially determined based only on the direction of the face.

Further, in the embodiment, the display processing unit 402 executes the mirror image processing of the first image and the second image as shown in FIG. 5B, FIG. 6, or FIG. A mirror image identification mark 531, 611, or 711 for identifying the person is displayed on the display unit 131. With such a configuration, it is possible to facilitate the identification of the image on which the mirror image processing is performed.

Further, in the embodiment, when all the imaging directions of the plurality of captured images to be displayed on the display unit 131 are substantially the same, the display processing unit 402 displays the plurality of captured images without executing the mirror image processing. It is displayed on the display unit 131 as it is. According to such a configuration, a plurality of captured images can be easily displayed as they are when there is no captured image whose imaging direction is substantially opposite.

The image display program executed on the PC 130 according to the embodiment may be provided or distributed via a network such as the Internet. That is, the image display program executed on the PC 130 according to the embodiment may be provided in the form of accepting downloads via the network while being stored on a computer connected to a network such as the Internet.

Although the embodiments of the present disclosure have been described above, the above-described embodiments are merely examples and are not intended to limit the scope of the invention. The novel embodiment described above can be implemented in various forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The above-described embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

111, 121 Imaging unit 131 Display unit 400 Image display device 401 Image acquisition unit 402 Display processing unit 521, 601 and 701 Images (captured image, face image, in-vehicle image)
522, 602, 702 images (captured image, front image, outside image)
531, 611, 711 Mirror image identification sign 621, 721, 722 Direction identification sign V vehicle X1 driver (occupant)

Claims (7)

An image acquisition unit that acquires a plurality of captured images obtained as a result of imaging by one or more imaging units provided in a vehicle, and an image acquisition unit.
When the plurality of captured images include a first image having a first direction as an imaging direction and a second image having a second direction substantially opposite to the first direction as an imaging direction, the above-mentioned A display processing unit that displays the first image and the second image on the display unit after performing mirror image processing that reverses the left and right of either the first image or the second image.
An image display device. In the display processing unit, one of the first image and the second image is an in-vehicle image showing the internal situation of the vehicle, and the other of the first image and the second image is the vehicle. In the case of an outside vehicle image showing the external situation of the vehicle, the inside image and the outside image are displayed on the display unit after performing the mirror image processing on the inside image.
The image display device according to claim 1. The display processing unit displays a face image showing the face of the occupant of the vehicle as the inside image of the vehicle, and displays a front image showing the situation in front of the vehicle as the outside image of the vehicle.
The image display device according to claim 2. The display processing unit displays on the display unit a direction identification mark for identifying at least one of the eye orientation and the face orientation that can be included in the face of the occupant.
The image display device according to claim 3. The display processing unit displays on the display unit a mirror image identification mark for identifying which of the first image and the second image the mirror image processing has been executed.
The image display device according to any one of claims 1 to 4. When all the imaging directions of the plurality of captured images are substantially the same, the display processing unit displays the plurality of captured images on the display unit without executing the mirror image processing.
The image display device according to any one of claims 1 to 5. An image acquisition step of acquiring an image captured as a result of imaging by one or more imaging units provided in a vehicle, and an image acquisition step.
When the captured image includes a first image having a first direction as an imaging direction and a second image having a second direction substantially opposite to the first direction as an imaging direction, the first image is described. A display processing step of displaying the first image and the second image on the display unit after performing mirror image processing for inverting the left and right of either the image or the second image.
An image display program that allows a computer to run.

Images