JP6110617B2 - Display system, display control apparatus, and display control method - Google Patents

Description

  The present invention relates to a display system, a display control device, and a display control method for displaying an image taken by a camera on a display device.

  2. Description of the Related Art Conventionally, a display system that outputs a plurality of images captured by a plurality of cameras to one monitor is known.

  Further, the conventional drive recorder has a monitor output, captures a video by a camera under a specific condition, and displays the captured video on an external monitor or a navigation device. At this time, when there are a plurality of cameras, one camera was selected and monitor output was performed.

  Further, in the drive recorder, when it is desired to simultaneously view a plurality of screens on which images from a plurality of cameras are respectively displayed, the images from the plurality of cameras are inserted into the monitor output.

  There are the following as this type of prior art. When a video signal is input to the signal from the rear view camera, the video is displayed on the display device, and when this video signal is not input, the vehicle video recording is displayed by switching to the video before switching to the rear view camera. There exists an apparatus (refer patent document 1).

  In addition, there is a drive recorder that sequentially switches the front, rear, left, and right images when the screen is divided into four (see Patent Document 2).

JP 2011-114850 A JP 2007-320359 A

  However, the conventional display system has the following problems. That is, when outputting a plurality of images captured by a plurality of cameras to one monitor, if only images from one camera are output to the monitor, images from other cameras cannot be confirmed.

  On the other hand, when the screen of the display device is divided and all images from a plurality of cameras are displayed, the images displayed on each screen are small and difficult to see. Further, in this case, since the screen layout is fixed, it is difficult to perform display suitable for the situation.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a display system capable of performing display suitable for a situation or the like on an image photographed by a camera and improving visibility. Another object is to provide a display control device and a display control method.

In order to achieve the above-described object, the display system according to the present invention is characterized by the following (1) to ( 2 ).
(1) A display system including a plurality of cameras that capture images, a display device that displays images on a screen, and a display control device that displays images captured by the camera on the display device,
The display control device includes:
An input unit for inputting different types of external signals;
A holding unit for holding screen layout information corresponding to the external signal;
When the external signal is input to the input unit, the screen layout corresponding to the external signal whose information is held in the holding unit is selected and the external signal is selected from the plurality of cameras. A selection unit for selecting a camera on which an image is displayed on the display device,
The display control device causes the display device to display an image captured by the camera selected by the selection unit according to the screen layout selected by the selection unit,
The selection unit selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
The display control device simultaneously displays a current image taken by the same camera and an image of a predetermined time before this ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection unit determines that the position of the vehicle is within the predetermined range, and based on the determination that the traveling speed of the vehicle is equal to or greater than a threshold value, a camera that photographs the left direction of the vehicle Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value To select an image layout in which an image captured by a camera capturing a rearward direction of the vehicle is displayed larger .
(2) A display system configured as described in (1) above,
The selection unit selects the number and combination of cameras corresponding to the external signal from the plurality of cameras.

According to the display system having the above configuration (1) to ( 2 ), when an external signal is input, a screen layout corresponding to the external signal is selected, and an image photographed by the camera according to the selected screen layout. Is displayed on the display device.

In order to achieve the above-described object, the display control device according to the present invention is characterized by the following ( 3 ).
( 3 ) A display control device that is connected to a plurality of cameras that capture images and a display device that displays images on a screen, and that displays images captured by the cameras on the display device,
An input unit for inputting different types of external signals;
A holding unit for holding screen layout information corresponding to the external signal;
When the external signal is input to the input unit, the screen layout corresponding to the external signal whose information is held in the holding unit is selected and the external signal is selected from the plurality of cameras. A selection unit for selecting a camera whose image is displayed on the display device;
With
The image taken by the camera selected by the selection unit is displayed on the display device according to the screen layout selected by the selection unit,
The selection unit selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
Display the current image taken with the same camera and the image before the specified time at the same time ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection unit determines that the position of the vehicle is within the predetermined range, and based on the determination that the traveling speed of the vehicle is equal to or greater than a threshold value, a camera that photographs the left direction of the vehicle Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value To select an image layout in which an image captured by a camera capturing a rearward direction of the vehicle is displayed larger .

According to the display control device having the configuration ( 3 ), when an external signal is input, a screen layout corresponding to the external signal is selected, and an image captured by the camera is displayed according to the selected screen layout. To display.

In order to achieve the above-described object, the display control method according to the present invention is characterized by the following ( 4 ).
( 4 ) A display control method in which the display control device displays images taken by a plurality of cameras on the screen of the display device,
An input step for inputting different types of external signals;
When the external signal is input in the input step, a screen layout corresponding to the external signal is selected, and an image is displayed on the display device corresponding to the external signal from the plurality of cameras. A selection step to select a camera;
A display step of causing the display device to display an image taken by the camera selected in the selection step according to the screen layout selected in the selection step;
Have
The selection step selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
In the display step, a current image taken by the same camera and an image of a predetermined time earlier are simultaneously displayed ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection step includes determining that the position of the vehicle is within the predetermined range and shooting a leftward direction of the vehicle based on determining that the traveling speed of the vehicle is equal to or greater than a threshold value. Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value To select an image layout in which an image captured by a camera capturing a rearward direction of the vehicle is displayed larger .

According to the display control method having the above configuration ( 4 ), when an external signal is input, a screen layout corresponding to the external signal is selected, and an image captured by the camera is displayed according to the selected screen layout. To display.

  According to the present invention, when an external signal is input, a screen layout corresponding to the external signal is selected, and an image captured by the camera is displayed on the display device according to the selected screen layout. Thereby, the display suitable for the condition etc. can be performed with respect to the image image | photographed with the camera, and visibility can be improved.

FIG. 1 is a block diagram showing a configuration of a drive recorder system 1 which is a display system in the embodiment. FIG. 2 is a diagram showing an appearance of the drive recorder 10 (FIG. 2A), an installation example of the camera of the drive recorder 10 (FIG. 2B), and an image displayed on the monitor 30 (FIG. 2C). It is. FIG. 3 is a diagram showing an arrangement table 60 in which selectable screen layouts corresponding to the number of expression cameras are registered. FIG. 4 is a functional block diagram (FIG. 4A) of the drive recorder system 1 which is a display system in the embodiment, and a correspondence relationship between video recording corresponding to an external signal and a monitor output (FIG. 4B). FIG. FIG. 5 is a flowchart showing a display operation procedure. FIG. 6 is a flowchart showing a monitor output setting changing procedure in step S3. FIG. 7 is a flowchart showing a display operation procedure when different external signals are input at the same time. FIG. 8 is a flowchart showing another display operation procedure when different external signals are inputted at the same time.

  A display system, a display control device, and a display control method according to an embodiment of the present invention will be described with reference to the drawings. The display system of this embodiment is applied to a drive recorder system mounted on a vehicle such as a bus.

  FIG. 1 is a block diagram showing a configuration of a drive recorder system 1 which is a display system in the embodiment. The drive recorder system 1 includes a drive recorder 10, a monitor 30, a plurality of cameras 20, a GPS receiver 23, a speed sensor 24, a G sensor 21, an external signal input unit 25, and the like.

  The drive recorder 10 records images taken by the camera 20 and various operation data. The CPU 11, the memory card 12, the SDRAM 13, the monitor output unit 14, and various interfaces (I / F) 15, 16, 17, 18, 19.

  The CPU 11 includes a video processing unit 11a that performs processing such as image composition, a layout storage unit 11b in which a screen layout is registered, and a camera setting unit 11c in which the number and combination of expression cameras described later are registered.

  Images taken by the camera 20 are recorded on the memory card 12. As this memory card 12, an SD card (registered trademark) or the like is used. The SDRAM 13 stores various data.

  A display device (monitor) 30 is connected to the monitor output unit 14. The monitor 30 displays a video (image) taken by the camera 20 on the screen 31.

  A plurality of cameras 20 are connected to the plurality of camera I / Fs 15 respectively. Here, a case where four cameras 20a, 20b, 20c, and 20d (see FIG. 4) are connected is shown. In particular, when it is not necessary to distinguish the four cameras, they are referred to as cameras 20. The number of cameras may be arbitrary.

  A G sensor 21 that detects the acceleration of the vehicle is connected to the sensor I / F 16. The GPS interface (I / F) 17 is connected to a GPS receiving unit 23 that receives a signal from a GPS satellite and acquires position information (longitude, latitude, altitude). A speed sensor 24 that detects the speed of the vehicle is connected to the speed I / F 18.

  An external signal input unit 25 for inputting an external signal is connected to the I / O interface (I / F) 19. For example, a shift position sensor that detects that the lever is in the back position when traveling backward, a door SW that detects opening / closing of the door, a winker SW that detects left or right turn, and a certain time are counted. Timers to be used.

  FIG. 2 is a diagram showing an appearance of the drive recorder 10 (FIG. 2A), an installation example of the camera of the drive recorder 10 (FIG. 2B), and an image displayed on the monitor 30 (FIG. 2C). It is. As shown in FIG. 2A, a card connecting portion 12a into which a memory card 12 is inserted is provided on the front surface of the main body of the drive recorder 10. In addition, four cameras 20 a, 20 b, 20 c, and 20 d are connected to the drive recorder 10 via a cable 28, and a monitor 30 is connected via a cable 27.

  As shown in FIG. 2B, the four cameras 20a, 20b, 20c, and 20d are installed so as to photograph the rear, front, left side, and right side of the vehicle 5, respectively.

  As shown in FIG. 2C, the screen layout of the monitor 30 is divided into three screens 31a, 31b, and 31c so as to display images taken by three cameras. For example, an image behind the vehicle is displayed on the upper screen 31a of the monitor 30, an image on the left side of the vehicle is displayed on the lower left screen 31b, and an image on the right side of the vehicle is displayed on the lower right screen 31c. Is displayed.

  Here, a display mode is shown in which the screen of the monitor 30 is divided into two vertically and the lower screen is further divided into two to display images taken by the three cameras 20 on three screens, respectively. However, as will be described later, it is possible to deal with various display modes. A camera that displays an image on the screen of the monitor 30 is particularly referred to as an expression camera.

  Further, the number and combination of expression cameras corresponding to the external signal are registered in the camera setting unit 11c. This combination includes arrangement information for displaying an image photographed by each camera according to the screen layout. Further, the screen layout corresponding to the number of expression cameras is registered in the arrangement table 60 stored (held) in the layout storage unit 11b (holding unit) so as to be selectable.

  FIG. 3 is a diagram showing an arrangement table 60 in which selectable screen layouts corresponding to the number of expression cameras are registered. Here, the screen layout selected from the plurality of screen layouts corresponding to the number of expression cameras is determined according to the type of the input external signal. Here, as an example, a case where there are four cameras is shown.

  Specifically, when the number of expression cameras is 1, the screen layout 61 composed of a single screen is selected without dividing the screen of the monitor 30. When the number of expression cameras is 2, the screen of the monitor 30 is selected from any one of the screen layout 62 divided into the top and bottom, the screen layout 63 divided into the left and right, and the screen layout 64 having the window screen.

  When the number of expression cameras is 3, one is selected from the four screen layouts. The four screen layouts include a screen layout 65 that is divided vertically and an upper part is divided into left and right, and a screen layout 66 that is divided vertically and a lower part is divided left and right. Further, there are a screen layout 67 having two window screens and a screen layout 68 composed of three screens which are divided into upper, lower, left and right and excluding the lower right.

  When the number of expression cameras is 4, one is selected from the four screen layouts. The four screen layouts include a screen layout 69 divided vertically and horizontally, and a screen layout 70 divided into one large screen and three small screens. Further, there are a screen layout 71 in which the upper part is divided into two screens and the lower part is divided into three screens, and a screen layout 72 in which the upper part is divided into one large screen and five small screens.

  In the case of the screen layouts 71 and 72, the number of divided screens is larger than the number of expression cameras. On the number of screens exceeding the number of expression cameras, for example, a current image captured by the same camera and an image a predetermined time earlier may be displayed simultaneously. Further, another image may be displayed or nothing may be displayed. Thus, various display modes can be selected.

  Next, an expression camera and a screen layout that are selected when an external signal is input will be described. FIG. 4 is a diagram showing video recording and monitor output corresponding to an external signal. Here, the external signal 1 is input as a signal from a shift position sensor that detects that the lever is in the back position when traveling backward. In addition, an external signal 2 is input as an ON / OFF signal of the door SW that detects opening / closing of the door. In addition, an external signal 3 is input as an ON / OFF signal of the turn signal SW for detecting a left turn or a right turn.

  The drive recorder 10 has a function shown in FIG. 4A that is realized by executing a control program stored in a memory built in the CPU 11. That is, when at least one of the external signals 1, 2, and 3 is input, the drive recorder 10 has a function 10a for recording an image captured by the camera 20 on the memory card 12 together with the external signal. Have. Further, the drive recorder 10 has a function 10b for performing monitor output setting corresponding to the input external signal. The monitor output setting includes the number and combination of expression cameras, the screen layout, and the like.

  As shown in FIG. 4B, video recording and monitor output settings corresponding to the external signals 1, 2, and 3 are performed according to the arrangement table 60 (see FIG. 3) described above. Specifically, when the external signal 1 is input, all the images photographed by the four cameras (1) 20a to the camera (4) 20d are recorded on the memory card 12 and photographed by the camera (1) 20a. The image is displayed on the screen of the monitor 30. Here, since the number of expression cameras is 1, the screen layout is composed of a single screen.

  Similarly, when the external signal 2 is input, all the images photographed by the four cameras (1) 20a to (4) 20d are recorded in the memory card 12, and the images photographed by the camera (3) 20c. Is displayed on the screen of the monitor 30.

  When the external signal 3 is input, all images taken by the four cameras (1) 20a to (4) 20d are recorded in the memory card 12. Then, an image photographed by the camera (2) 20b is displayed on the upper screen of the monitor 30, and an image photographed by the camera (3) 20c is displayed on the lower screen of the monitor 30. Here, the camera (2) 20b and the camera (3) 20c corresponding to the external signal 3 are selected, and the screen layout 62 (see FIG. 3) is selected.

  The operation of the drive recorder system 1 having the above configuration will be described. FIG. 5 is a flowchart showing a display operation procedure. This operation program is stored in the ROM in the CPU 11 and is executed by the CPU 11 at the time of activation.

  First, the CPU 11 performs a specified monitor output setting (step S1). As the prescribed monitor output, for example, a screen layout 61 when the number of expression cameras is 1 is set. An arbitrary screen layout may be set as the specified monitor output.

  The CPU 11 determines whether or not an external signal is input (step S2). If no external signal is input, the CPU 11 proceeds to the process of step S4.

  On the other hand, when an external signal is input, the CPU 11 determines an expression camera and a screen layout corresponding to the type of the input external signal, and changes the monitor output setting (step S3).

  CPU11 discriminate | determines whether the image signal displayed on the monitor 30 is output from the at least 1 camera 20 set to the expression camera (step S4). When the image signal displayed on the monitor 30 is not output, the CPU 11 returns to the process of step S1.

  On the other hand, when the image signal to be displayed on the monitor 30 is output, the CPU 11 creates a video by combining images from the camera 20 set as the expression camera according to the monitor output setting screen layout (step S5). ). Then, the CPU 11 displays the created video on the monitor 30 (step S6). Thereafter, the CPU 11 returns to the process of step S1.

  FIG. 6 is a flowchart showing the monitor output setting changing procedure in step S3. The CPU 11 determines the type of the input external signal (step S21). As a result of the determination, the CPU 11 selects an expression camera corresponding to the type of the external signal, for example, from among the four cameras 20 (step S22).

  Further, the CPU 11 selects a screen layout corresponding to the number of expression cameras corresponding to the type of external signal (step S23). Steps S22 and S23 correspond to a selection unit.

  Then, the CPU 11 performs monitor output setting based on the expression camera selected in step S22 and the screen layout selected in step S23 (step S24). Thereafter, the CPU 11 returns to the original process.

  As described above, according to the display system of the present embodiment, an image taken by a camera corresponding to an external signal is displayed with a screen layout corresponding to the external signal, so that it is not difficult to see. Thereby, the display suitable for the condition etc. can be performed with respect to the image image | photographed with the camera, and visibility can be improved.

  Moreover, since the number and combination of cameras can be selected, the degree of freedom for selecting an expression camera is increased.

  In addition, since a screen layout obtained by dividing the screen into the number equal to or greater than the number of expression cameras can be selected, display of images corresponding to the number of expression cameras can be ensured. In addition, other images can be displayed on the screen exceeding the number of expression cameras.

  In addition, since the external signal is a signal indicating the state of the vehicle (a shift position sensor signal, a door open / close SW signal, a blinker SW signal, etc. when traveling backward), the change of the monitor output setting is caused by the occurrence of a trigger, It can be used as a mark when checking the state of the vehicle later.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration that can achieve the function of the configuration of the present embodiment is applicable.

  For example, different types of external signals are not limited to those described above. For example, a signal when an acceleration signal detected by a G sensor exceeds a threshold value, or a signal when a speed signal detected by a speed sensor exceeds a threshold value May be used. Furthermore, a position contention signal indicating that the position information specified based on the position signal obtained from the GPS receiver has entered a predetermined range, a signal indicating that a certain time has elapsed, or the like may be used. .

  Here, one mode in which an acceleration signal, a velocity signal, or a position contention signal is input as an external signal will be described more specifically.

  First, a case where an acceleration signal is input as an external signal will be described. When the direction of acceleration is calculated based on the input acceleration signal, an image layout in which an image captured by a camera that captures the direction of acceleration among the cameras 20, 20a, 20b, 20c, and 20d is displayed larger. Is selected. At this time, it is further determined whether or not the magnitude of the acceleration calculated based on the input acceleration signal is greater than or equal to a threshold, and if the magnitude of the acceleration is greater than or equal to the threshold, the direction of the acceleration is determined. You may make it select the image layout by which the image image | photographed with the camera which is image | photographing is displayed larger. In other words, the image layout may be selected with a trigger that the magnitude of acceleration is equal to or greater than a certain threshold. In addition, when there are a plurality of cameras that shoot the direction of a certain acceleration among the cameras 20, 20a, 20b, 20c, and 20d, the camera that shoots a direction closer to the direction of the acceleration. An image layout in which the displayed image is displayed larger may be selected.

  Next, a case where a speed signal is input as an external signal will be described. When the direction of the speed is calculated based on the input speed signal, an image layout in which an image captured by the camera that captures the direction of the speed among the cameras 20, 20a, 20b, 20c, and 20d is displayed larger. Is selected. At this time, it is further determined whether or not the magnitude of the speed calculated based on the input speed signal is equal to or greater than a threshold value. If the magnitude of the speed is equal to or greater than the threshold value, the direction of the speed is determined. You may make it select the image layout by which the image image | photographed with the camera which is image | photographing is displayed larger. In other words, the image layout may be selected by using as a trigger that the magnitude of the speed is a certain threshold value or more. In addition, when there are a plurality of cameras that shoot the direction of a certain speed among the cameras 20, 20a, 20b, 20c, and 20d, the camera that shoots the direction closer to the direction of the speed, An image layout in which the displayed image is displayed larger may be selected.

  Next, a case where a position contention signal is input as an external signal will be described. When the position coordinates of the vehicle are calculated based on the input position signal, it is determined whether or not the position coordinates are within a predetermined range. At this time, the predetermined range is an area where the driver wants to pay more attention, such as a radius range of 2 to 5 [m] centering on the bus stop, and an intersection where accidents frequently occur. When it is determined that the calculated position coordinates are within a predetermined range, an image captured by a camera capturing a predetermined direction among the cameras 20, 20a, 20b, 20c, and 20d is displayed in a larger size. The image layout to be selected is selected. At this time, when the bus stop is set as a predetermined range, the predetermined direction is the left direction of the vehicle because the bus stop is located on the left side with respect to the traveling direction of the vehicle. In addition, the predetermined direction is a forward direction of the vehicle before the vehicle passes the intersection when the intersection is set as a predetermined range, and the direction of the vehicle after the vehicle passes the intersection. Be retrospective.

  Up to this point, the description has been given of the form in which acceleration signals, velocity signals, or position contention signals are separately input as external signals. Next, a mode in which these signals are input at the same time will be described. FIG. 7 is a flowchart showing a display operation procedure when different external signals are input at the same time. First, when the position coordinates of the vehicle are calculated based on the input position signal (step S701), it is determined whether or not the position coordinates are within a predetermined range (step S702). At this time, the predetermined range is a range having a radius of 2 to 5 [m] around the bus stop. When it is determined that the calculated position coordinates are within a predetermined range (step S702, YES), the speed of the vehicle is calculated based on the input speed signal (step S703), and the magnitude of the calculated speed is determined. It is further determined whether or not a certain threshold value or more (step S704), and if the speed is greater than or equal to the threshold value (step S704, YES), the image is taken by a camera that is photographing a predetermined direction. An image layout that displays a larger image is selected (step S705). At this time, the predetermined direction is the left direction of the vehicle where the bus stop is located with respect to the traveling direction of the vehicle. Alternatively, when the magnitude of the speed is less than the threshold, an image layout in which an image captured by a camera capturing a predetermined direction is displayed larger is selected. At this time, the predetermined direction is a backward direction of the vehicle. Thus, the image layout is selected based on the external signal input at the same time. According to this aspect, when the magnitude of the speed is equal to or higher than the threshold, the driver can visually recognize the passenger waiting at the bus stop when the bus arrives at the bus stop. Further, when the magnitude of the speed is less than the threshold, the driver can visually recognize the danger that the following vehicle will collide with the bus that decelerates toward the bus stop.

  Next, another mode in which different external signals are input at the same time will be described. FIG. 8 is a flowchart showing another display operation procedure when different external signals are inputted at the same time. When the position coordinates of the vehicle are calculated based on the input position signal (step S801), it is determined whether or not the position coordinates are within a predetermined range (step S802). At this time, the predetermined range is an intersection where accidents frequently occur. When it is determined that the calculated position coordinates are within a predetermined range (step S802, YES), the direction of speed is calculated based on the input speed signal (step S803). Then, among the cameras 20, 20a, 20b, 20c, and 20d, an image layout that displays a larger image captured by the camera capturing the direction of the speed is selected (step S804). At this time, it is further determined whether or not the magnitude of the speed calculated based on the input speed signal is greater than or equal to a threshold value (step S805), and if the magnitude of the speed is greater than or equal to the threshold value (step S805). (S805, YES), an image layout that displays a larger image captured by the camera capturing the direction of the speed may be selected (step S804). Further, at this time, an alarm sound may be output (step S806). According to this aspect, when traveling toward an intersection where accidents frequently occur, it is possible to call attention to the intersection.

  Thus, according to the form in which signals such as an acceleration signal, a speed signal, or a position contention signal are input at the same time as external signals, an image layout that more easily informs the situation where the vehicle is placed. It can be visually recognized by the driver. In addition, this invention is applied also to situations other than the situation where the vehicle mentioned above is put.

  Further, different types of external signals may be those in which different screen layouts and camera selection information are included in the external signals. In this case, the drive recorder can preferentially select the screen layout and the camera based on the selection information included in the external signal.

  Further, the screen layout is not limited to the above. For example, among multiple cameras set as expression cameras, monitor output is selected in the middle so that a screen layout having the same number of screens as the number of cameras that output image signals that are actually displayed on the monitor is selected. The setting may be changed. That is, the monitor output setting may be changed again after YES in step S4 of FIG.

  Further, there may be a case where an image arranged at a predetermined position in a certain image layout cannot be narrowed down to an image from one camera. In this case, based on a predetermined priority order for each of the cameras 20, 20a, 20b, 20c, and 20d, an image from a higher-order camera is arranged at a predetermined position in the image layout. You can also. Alternatively, it is also possible to preferentially place an image of a camera that has been placed (or after) at a predetermined position in the image layout and place it at that position.

  INDUSTRIAL APPLICATION When displaying the image image | photographed with the camera on a display apparatus, this invention can perform the display suitable for the condition etc. and can improve visibility and is useful.

DESCRIPTION OF SYMBOLS 1 Display system 5 Vehicle 10 Drive recorder 10a, 10b Function 11 CPU
11a Video processing unit 11b Layout storage unit 11c Camera setting unit 12 Memory card 12a Card connection unit 13 SDRAM
14 Monitor output unit 15, 16, 17, 18, 19 Interface (I / F)
20, 20a, 20b, 20c, 20d Camera 21 G sensor 23 GPS receiving unit 24 Speed sensor 25 External signal input unit 27, 28 Cable 30 Monitor (display device)
31, 31a, 31b, 31c Screen 60 Arrangement table 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72 Screen layout

Claims (4)

A display system comprising: a plurality of cameras that capture images; a display device that displays images on a screen; and a display control device that displays images captured by the camera on the display device,
The display control device includes:
An input unit for inputting different types of external signals;
A holding unit for holding screen layout information corresponding to the external signal;
When the external signal is input to the input unit, the screen layout corresponding to the external signal whose information is held in the holding unit is selected and the external signal is selected from the plurality of cameras. A selection unit for selecting a camera on which an image is displayed on the display device,
The display control device causes the display device to display an image captured by the camera selected by the selection unit according to the screen layout selected by the selection unit,
The selection unit selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
The display control device simultaneously displays a current image taken by the same camera and an image of a predetermined time before this ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection unit determines that the position of the vehicle is within the predetermined range, and based on the determination that the traveling speed of the vehicle is equal to or greater than a threshold value, a camera that photographs the left direction of the vehicle Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value And a display system that selects an image layout in which an image captured by a camera that captures a rearward direction of the vehicle is displayed. The display system according to claim 1,
The display system is characterized in that the selection unit selects the number and combination of cameras corresponding to the external signal from the plurality of cameras. A display control device that is connected to a plurality of cameras that capture images and a display device that displays images on a screen, and that causes the display device to display images captured by the camera,
An input unit for inputting different types of external signals;
A holding unit for holding screen layout information corresponding to the external signal;
When the external signal is input to the input unit, the screen layout corresponding to the external signal whose information is held in the holding unit is selected and the external signal is selected from the plurality of cameras. A selection unit for selecting a camera whose image is displayed on the display device;
With
The image taken by the camera selected by the selection unit is displayed on the display device according to the screen layout selected by the selection unit,
The selection unit selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
Display the current image taken with the same camera and the image before the specified time at the same time ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection unit determines that the position of the vehicle is within the predetermined range, and based on the determination that the traveling speed of the vehicle is equal to or greater than a threshold value, a camera that photographs the left direction of the vehicle Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value A display control device that selects an image layout in which an image captured by a camera capturing a rearward direction of the vehicle is displayed based on the image . A display control method in which a display control device displays images taken by a plurality of cameras on a screen of a display device,
An input step for inputting different types of external signals;
When the external signal is input in the input step, a screen layout corresponding to the external signal is selected, and an image is displayed on the display device corresponding to the external signal from the plurality of cameras. A selection step to select a camera;
A display step of causing the display device to display an image taken by the camera selected in the selection step according to the screen layout selected in the selection step;
Have
The selection step selects a screen layout obtained by dividing the screen into a number larger than the number of cameras whose images are displayed on the display device,
In the display step, a current image taken by the same camera and an image of a predetermined time earlier are simultaneously displayed ,
The external signal includes a speed signal indicating a traveling speed of the vehicle, and a position contention signal for identifying whether the position of the vehicle has entered a predetermined range,
The selection step includes determining that the position of the vehicle is within the predetermined range and shooting a leftward direction of the vehicle based on determining that the traveling speed of the vehicle is equal to or greater than a threshold value. Selecting an image layout in which an image captured in is displayed larger, determining that the position of the vehicle is within the predetermined range, and determining that the traveling speed of the vehicle is less than the threshold value A display control method comprising: selecting an image layout in which an image captured by a camera capturing a rearward direction of the vehicle is displayed based on the image .

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