JP2016052814A - Vehicle periphery recognition support system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change an image which is transmitted to a display-incorporated room mirror while keeping a position and a posture of an on-vehicle camera in a fixed state, in a vehicle periphery recognition support system.SOLUTION: A vehicle periphery recognition support system comprises: an on-vehicle camera 16; a display-incorporated room mirror 20; a posture variable part 30 which can change a posture of the display-incorporated room mirror 20 to a posture between a normal posture and an inclined posture which is downwardly inclined rather than the normal posture; a posture detection part 40 which detects a posture state of the display-incorporated room mirror 20; and an indication range image forming part which forms images in different ranges out of imaged images as indication range images 62, 64 according to a difference of states of postures of the display-incorporated room mirror 20 with an image in a range which is obtained by imaging a scene within an imaging angle by the on-vehicle camera 16 as the imaged image 60, and transmits the images to a display 26.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle periphery recognition support system, and more particularly, to a vehicle periphery recognition support system using a room mirror with a built-in display.

  When driving a vehicle, it is necessary to pay attention not only to the front of the vehicle but also to the side of the vehicle and the rear of the vehicle. In addition, when the vehicle is put in a parking lot or the like in the back, attention must be paid to the road surface on the rear end side of the vehicle. Since recognition of the surroundings of the vehicle is important in this way, an imaging camera is attached to the rear end side of the vehicle body, and the vehicle periphery recognition support is made so that the image captured by the imaging camera can be observed from the driver's seat on a monitor in the vehicle interior The system is known.

  For example, in Patent Document 1, as a vehicle periphery recognition support device, a camera that starts imaging when a shift position sensor detects that the shift lever is set to reverse and is used for parking assistance, and a captured scene are described. A monitor to display is described. In addition, a mirror mirror provided above the driver's seat functions as a mirror and reflects a mirror surface portion of a half mirror that reflects a scene behind the vehicle, and a liquid crystal display that can display at least part of a display image similar to a monitor. It is stated that it is configured.

  Further, in Patent Document 2, as an image display device, an image that is arranged at a predetermined position in a vehicle interior and has a reflecting surface constituted by a half mirror, and displays an image behind the half mirror so as to be observable from the front side of the half mirror. A room mirror provided with a display for display is described. Here, the position and orientation of the room mirror in the coordinate system fixed to the vehicle is detected by an inclination sensor or the like.

JP 2010-128794 A JP 2005-335410 A

  When the room mirror with built-in display is used in the vehicle periphery recognition support system, the driver changes the position and posture of the room mirror with built-in display so that the display on the display is easy to see. When using a mirror with built-in display as a general mirror, you can change the position and posture of the mirror with built-in display so that the scene behind the driver can be seen well.

  When the built-in room mirror is used as a display to display an image captured by an in-vehicle camera, the driver wants to see the scene behind the vehicle to some extent during normal driving of the vehicle. I want to see the road surface condition near the rear end of my vehicle. However, since the vehicle-mounted camera is generally fixed to the vehicle, it is difficult to change its position and posture. In Patent Document 2, a dedicated camera is provided for parking assistance.

  If the image displayed on the built-in room mirror can be changed without changing the position and orientation of the in-vehicle camera, it is convenient as a vehicle periphery recognition support system.

  An object of the present invention is to provide a vehicle periphery recognition support system that can change an image transmitted to a display built-in room mirror while fixing the position and posture of a vehicle-mounted camera.

  The vehicle periphery recognition support system according to the present invention includes an in-vehicle camera that captures a scene outside the vehicle, a mirror surface portion that reflects the scene outside the vehicle, and an image captured by the in-vehicle camera that reflects the scene outside the vehicle. And a display built-in room mirror that is mounted at a predetermined mounting position in the vehicle interior, and a tilted posture in which the display built-in room mirror with respect to the predetermined mounting position is tilted downward from the normal position and the normal position. A posture changer that can be changed between the camera, a posture detection unit that detects the posture of the room mirror with built-in display, and a room with a built-in display as an image of the range in which the in-vehicle camera captures a scene within the shooting angle of view. Depending on the difference in the mirror position, a different range of captured images is formed as a display range image and And display range image forming unit to be transmitted to Lee, characterized in that it comprises a.

  In the vehicle periphery recognition support system according to the present invention, it is preferable that the mirror surface portion of the display-equipped room mirror projects a scene behind the vehicle, and the in-vehicle camera images the scene behind the vehicle.

  Further, in the vehicle periphery recognition support system according to the present invention, the display image range image forming unit is configured to detect a range of a scene on the far side along the road surface behind the vehicle when the posture of the room mirror with a built-in display is a normal posture. When the image is a display range image and the state of the display built-in room mirror is in the tilted posture, it is preferable that the image of the scene range on the road surface near the rear end of the vehicle behind the vehicle is the display range image.

  The vehicle periphery recognition support system configured as described above detects that the attitude of the display-equipped room mirror has been changed, and has a different range of captured images captured by the in-vehicle camera according to the difference in the detected attitude state. An image is formed as a display range image, which is transferred to a display for display. In this manner, the image transmitted to the display built-in room mirror can be changed while the position and orientation of the in-vehicle camera are fixed.

  In the vehicle periphery recognition support system, the mirror part of the built-in display rear view mirror displays the scene behind the vehicle, and the in-vehicle camera images the scene behind the vehicle. The image transmitted to the display built-in room mirror can be changed while the position and orientation of the in-vehicle camera are fixed.

  Also, in the vehicle periphery recognition support system, when the posture of the rearview mirror with built-in display is in the normal posture, the image of the far side of the scene is displayed on the display, and when the posture of the rearview mirror with built-in display is in the tilted posture Causes the display to display an image of the range of the scene on the road surface near the rear end of the vehicle behind the vehicle. In this way, with the position and orientation of the in-vehicle camera fixed, the images transmitted to the display built-in room mirror are the images of the far side scene range and the scene range on the road surface near the rear end of the vehicle. You can change between images.

It is a figure which shows the structure of the vehicle periphery recognition assistance system of embodiment which concerns on this invention. FIG. 1A is an overall view, FIG. 1B is a detailed view related to a display built-in room mirror, and FIG. 1C is a diagram showing different display range images displayed on the display. It is a figure which shows the structure of an attitude | position detection part in the vehicle periphery recognition assistance system of embodiment which concerns on this invention. It is a figure which shows the structure of another attitude | position detection part. It is a figure which shows the example of another display built-in room mirror. It is a figure which shows the effect | action of the vehicle periphery recognition assistance system of embodiment which concerns on this invention. FIG. 5 (a) is a diagram showing that an image of a distant scene range is displayed in the normal posture, and FIG. 5 (b) is on the road surface near the rear end of the vehicle behind the vehicle in the inclined posture. It is a figure which shows that the image of the range of a scene is displayed.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. The angle ranges, dimensions, shapes, materials, and the like described below are examples for explanation, and can be appropriately changed according to the specifications of the vehicle periphery recognition support system. In the following, a general passenger car is described as a vehicle. However, this is an example for explanation, and other than this, it is necessary to recognize the periphery of a vehicle such as a large vehicle such as a bus or a working vehicle such as an excavator. Any vehicle can be used. In addition, although the in-vehicle camera is provided at the rear end of the vehicle as a single unit, it may be provided at the front or side of the vehicle depending on the specification of the vehicle. The number of units may be plural depending on the case. In that case, it is preferable to provide a function of switching the target camera to be displayed on the display built-in room mirror.

  In the following, in all the drawings, one and the corresponding elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a configuration diagram of a vehicle periphery recognition support system 10. The vehicle periphery recognition support system 10 includes a vehicle 12, a vehicle-mounted camera 16 mounted on the vehicle 12, a display-equipped room mirror 20, and a control device 50. FIG. 1A is an overall view of the vehicle 12 as viewed from the side, FIG. 1B is a detailed view related to the display built-in room mirror 20, and FIG. It is a figure which shows a different display range image. The vehicle 12 is a four-seater sedan type passenger car. In FIG. 1, drivers, passengers, and the like in the passenger compartment 14 are shown.

  The in-vehicle camera 16 is an imaging device that is fixedly provided at the rear end of the vehicle 12 and images a scene around the outside of the vehicle 12. The imaged data is transmitted to the control device 50 through the signal line 44.

  The fixed location may be a location where the structure of the own vehicle does not come within the imaging angle of view 17 that is a solid angle of the imaging range so that the rear of the vehicle 12 can be imaged in a wide range. In FIG. 1, it is provided at a portion called a rear gate around the license plate at the rear end of the vehicle 12. In addition to this, it may be provided in the rear window upper portion of the vehicle 12, in the rear spoiler, or the like. Here, “fixed” means that the imaging direction is fixed with respect to the vehicle 12 and the imaging angle of view 17 is fixed. That is, once the vehicle-mounted camera 16 is installed in the vehicle 12, the imaging direction is fixed with respect to the vehicle 12 and the imaging field angle 17 is fixed in that state.

  As the vehicle-mounted camera 16, a camera with a wide imaging viewing angle is used. FIG. 1 (c) shows an example of an imaging screen, and a screen having a specification capable of imaging a wide range with a fish-eye like this imaging screen is used. As an image sensor of the in-vehicle camera 16, a CCD (Charge Coupled Device) type or a CMOS (Complementary Metal Oxide Semiconductor) type can be used.

  The display built-in room mirror 20 has a liquid crystal display arranged on the back side of a normal mirror. Hereinafter, unless otherwise specified, the display built-in room mirror 20 is referred to as a room mirror 20. The room mirror 20 functions as a normal mirror when the liquid crystal display is not lit, and reflects the scene behind the vehicle 12 and the rear of the vehicle 12 that can be seen through the rear window. When the liquid crystal display is lit, the display on the liquid crystal display becomes brighter than the brightness of the scene reflected by the mirror, so that the display screen of the liquid crystal display can be seen.

  The vehicle periphery recognition support system 10 includes a liquid crystal display in addition to a mere mirror room mirror, for example, when a passenger is in the rear seat in the passenger compartment 14 or when luggage is placed between the rear seat and the rear window. This is because the scene behind the vehicle 12 through the rear window is not reflected well with a simple mirror, and it is inconvenient for driving. Since the scene behind the vehicle can be captured by the in-vehicle camera 16 that is provided outside the vehicle 12 and whose field of view is not obstructed depending on the own vehicle, it can be viewed with a display monitor device such as a liquid crystal display. The space in the vehicle compartment 14 can be used more effectively when the display monitor device is integrated with the room mirror than when the display monitor device is separated from the room mirror. Thus, the display built-in room mirror 20 is effective for vehicle periphery recognition support.

  FIG. 1B shows a cross-sectional view of the room mirror 20. The room mirror 20 includes a housing 22, a mirror surface part 24, a display 26, and a circuit board 28. The circuit board 28 is connected to the control device 50 by a signal line 46.

  The housing 22 is a case body that forms the outer shape of the room mirror 20, and has a wide front surface on which a surface transparent plate of the mirror surface portion 24 is disposed. On the rear surface, the posture changing unit 30 is attached so that the posture of the room mirror 20 can be changed. Here, the front side is the side facing the driver and the front side, and the back side is the opposite side of the front side and the back side. Here, since the end portion of the posture changing unit 30 is attached to a mounting member 18 provided at a predetermined position of the vehicle body in the vehicle compartment 14 of the vehicle 12, the room mirror 20 is connected to the vehicle compartment 14 via the posture changing unit 30. It is attached at a predetermined attachment position.

  The rear-view mirror 20 is disposed in a limited space in the passenger compartment 14 in front of the driver's seat and in the rear of the windshield, and the front of the vehicle 12 is not obstructed when viewed from the driver. Attached to. Therefore, the casing 22 has a horizontally long shape with a small vertical dimension and a long width dimension extending in the horizontal direction so as not to obstruct the driver's visual field. The vertical dimension is set to a size that allows the driver or the like to change the posture of the rearview mirror 20 by hand. As an example, the vertical dimension is 5 to 10 cm and the width dimension is 15 to 30 cm.

  The casing 22 can be made of a plastic material having appropriate weather resistance and strength and molded into a predetermined shape.

  The mirror surface portion 24 is a half mirror, and acts like a normal mirror when the display 26 is not turned on but turned off and the back is dark. The display 26 is a full-color liquid crystal display and is disposed behind the mirror surface portion 24. The circuit board 28 is a wiring board on which a drive circuit for the display 26 is mounted. A backlight for illuminating the display 26 is mounted on the circuit board 28. The circuit board 28 is supplied with a liquid crystal driving signal, a power source, and the like necessary for the display function of the display 26 from the control device 50 side through the signal line 46.

  Whether the mirror surface 24 or the display 26 is used for the display of the room mirror 20 is determined by, for example, providing a mode switching button in the room mirror 20 and using the mirror surface 24 without turning on the display 26 by the operation. Switching between the mirror mode and the display mode in which the display 26 is turned on and the display 26 is used can be performed.

  The posture varying unit 30 has a function as a room mirror holding unit that is attached to the rear surface of the rearview mirror 20 on one side and attached to the attachment member 18 at a predetermined attachment position in the passenger compartment 14 on the other side. It has a function as a posture changing mechanism that allows the posture of the rearview mirror 20 to be freely changed by hand.

  The posture changing unit 30 is a ball joint mechanism including a base member 32, a lid member 34, a ball 36 disposed therebetween, and an arm 38 protruding from the ball 36. Here, the posture detection unit 40 disposed between the base member 32 and the lid member 34 is illustrated as a plate material having a predetermined plate thickness. In the structure of the posture changing unit 30, the posture detecting unit 40 may be considered as a substrate having a predetermined plate thickness having a hole slightly larger than the maximum outer diameter of the ball 36.

  The base member 32 is a member having a bottom surface that is connected and fixed to the back surface of the rearview mirror 20 and a top surface that includes a ball seat surface that is recessed in a hemispherical shape to receive the spherical outer shape of the ball 36. The lid member 34 is a member having a bottom surface having a ball seat surface recessed in a hemispherical shape for receiving the spherical outer shape of the ball 36 and an upper surface including an opening through which the arm 38 passes. When the upper surface of the base member 32 and the bottom surface of the lid member 34 are aligned with the posture detection unit 40 shown as a plate material having a predetermined plate thickness, the ball seating surface of the base member 32, the hole of the substrate, and the bottom surface of the lid member 34. With this ball bearing surface, a ball joint mechanism is provided for holding the ball 36 rotatably.

  The radius of curvature of the ball seat surface of the base member 32, the hole diameter of the hole in the substrate, and the radius of curvature of the ball seat surface on the bottom surface of the lid member 34 are set so that the ball 36 can rotate smoothly. As the base member 32, the lid member 34, and the ball 36, a metal material having high wear resistance or a hard plastic material processed into a predetermined shape can be used. It is preferable to perform an appropriate surface treatment on the ball bearing surface and the ball 36 so as to achieve smooth rotation characteristics.

  The arm 38 is a rod-shaped member having one end fixed to the ball 36 and the other end fixed to the mounting member 18. If necessary, an appropriate shape is formed by bending or the like between one end side and the other end side. The connection between the one end side of the arm 38 and the ball 36 is integrated with a screw structure, a welded structure, or the like. Alternatively, a material obtained by integrally molding the arm 38 and the ball 36 using an appropriate hard plastic material may be used.

  The attachment member 18 is a member for attaching the rearview mirror 20 to a predetermined attachment position in the passenger compartment 14 via the posture changing unit 30. The predetermined mounting position in the passenger compartment 14 can be an appropriate position on the vehicle body ceiling member of the vehicle 12 as shown in FIG. Instead of this, an appropriate position on the windshield may be used.

  In this way, by attaching the rearview mirror 20 to the attachment member 18 in the passenger compartment 14 via the posture changing unit 30 having the ball joint mechanism, the driver holds the outer shape of the rearview mirror 20 with his / her hand. 20 postures can be freely changed. For example, the posture of the room mirror can be continuously changed between a normal posture and an inclined posture that is inclined downward from the normal posture.

  The posture detection unit 40 is a unit that detects the posture state of the room mirror 20 that can be changed by the function of the posture variable unit 30. The detected posture state is detected by the size of the three-dimensional rotation angle of the ball 36 or the like. Typically, the posture can be indicated by an inclination angle Δθ (see FIG. 5 described later) with respect to the floor surface of the vehicle on the front surface which is the display surface of the rearview mirror 20. The detected posture state is transmitted to the control device 50 via the signal line 46.

  FIG. 2 is a structural diagram of the posture detection unit 40. The posture detection unit 40 includes a substrate 68 and two encoders 70. The board | substrate 68 is corresponded to the board | plate material which has the predetermined board thickness demonstrated in the attitude | position variable part 30 of FIG.1 (b). The board 68 is a circuit board that has a hole that is slightly larger than the maximum outer diameter of the ball 36 at the center, and two encoders 70 are attached and arranged around the hole.

Each encoder 70 is disposed at two maximum outer diameters of the ball 36 that are orthogonal to each other. Each encoder 70 includes a detection bar 72 that contacts the maximum outer diameter of the ball 36 and rotates according to the rotation of the ball 36, a disc 74 that is attached to the detection bar 72 and has a plurality of detection holes, and a disc 74. The angle detection sensor 76 includes a light-emitting element and a light-receiving element that are respectively disposed on both sides of the image sensor. The plurality of detection holes provided in the circular plate 74 are arranged on the outer peripheral side of the circular plate 74 along the circumferential direction at a predetermined angular interval θ ₀ . The angle detection sensor 76 detects the rotation state of the detection bar 72 by detecting when the light emitted from the light emitting element passes through the hole of the disk 74 with the light receiving element.

When the ball 36 rotates two-dimensionally, the detection bars 72 of the two encoders 70 rotate according to the rotation angles that rotate around each of the two orthogonal rotation axes, and the light from the light emitting element is rotated by the rotation. Intermittently reaches the light receiving element through the hole. Therefore, the light receiving element outputs a pulse signal. By counting the number of pulses from when the ball 36 is at the reference position, the rotation angle Δθ from the reference position is {Δθ = (number of pulses) × (angular interval of holes arranged circumferentially on the disc 74). θ ₀ )}. Although FIG. 2 shows the case of two-dimensional rotation angle detection, three-dimensional rotation angles can be detected by arranging the three encoders 70 corresponding to three axes orthogonal to each other.

  Returning to FIG. 1A, the control device 50 is a vehicle control device that controls the entire operation of the vehicle 12 such as when it travels. Here, the vehicle periphery recognition support includes a display range image forming unit 52 that changes an image displayed on the display 26 of the room mirror 20 among the images captured by the vehicle-mounted camera 16 according to the attitude of the room mirror 20. Consists of.

  The display range image forming unit 52 is based on the data from the in-vehicle camera 16 transmitted through the signal line 44 and the detection data from the attitude detection unit 40 transmitted through the signal line 46. An image to be displayed on the display 26 is formed, and the formed result is transmitted to the display 26 of the room mirror 20 via the signal line 46.

  Here, an image in a range in which the in-vehicle camera 16 images a scene in the imaging angle of view 17 is set as a captured image. A captured image 60 is shown in FIG. The captured image 60 is a wide-angle captured image and is an image including a wide range from a distance behind the vehicle 12 to a road surface at the rear end of the vehicle 12. And according to the difference in the state of the posture of the room mirror 20, an image in a different range among the captured images is formed as a display range image.

  FIG. 1C shows two display range images 62 and 64. The display range image 62 is applied when the inclination angle of the rearview mirror 20 is 0 degree, and is an image of a far-side scene range along the road surface behind the vehicle. The posture state when the inclination angle is 0 degree is a state in which the driver or the like is assumed to take the posture of the room mirror 20 when the vehicle 12 is in a steady traveling state when the room mirror 20 is a mirror. Is called a normal posture. The display range image 62 is a display range image transmitted to the display 26 when the room mirror 20 is in the normal posture (see FIG. 5).

  The display range image 64 is applied when the inclination angle is not Δ0 but Δθ as the state of the rearview mirror 20, and is an image of a scene range on the road surface near the rear end of the vehicle 12 behind the vehicle. It is. The posture state of the inclination angle = Δθ is a state of the posture of the rearview mirror 20 that is considered to be taken to show the road surface near the rear end of the vehicle 12 when the driver makes the vehicle 12 back. This is called an inclined posture. The display range image 64 is a display range image transmitted to the display 26 when the room mirror 20 is in the tilted posture (see FIG. 5).

  In the above description, the encoder 70 is used as the posture detection unit 40, but a three-dimensional acceleration sensor may be used instead. Since the three-dimensional acceleration sensor can detect the three-dimensional direction of gravity, the inclination angle of the room mirror 20 with respect to the direction of gravity can be detected by arranging the acceleration sensor as a fixed position with respect to the housing 22 of the room mirror 20.

  FIG. 3 is a diagram illustrating the configuration of the room mirror 20 and the posture changing unit 30 when the acceleration sensor 42 is used. Since the acceleration sensor 42 is a small electronic component, it can be mounted on the circuit board 28 and disposed. In this case, the posture detecting unit 40 in the posture varying unit 30 can be omitted.

  In the above description, the display range image forming unit 52 is a function of the control device 50 that is a vehicle control device. This function may be an independent control IC. FIG. 4 is a diagram illustrating a configuration example of the room mirror 80 in which the control IC 82 having the display range image forming unit 52 is arranged inside the room mirror with a built-in display. Since the control IC 82 is a small electronic component, it can be mounted on the circuit board 28 and disposed. As a result, the room mirror 80 electrically communicates with the outside by supplying power via the signal line 84 and the data signal from the in-vehicle camera 16 via the signal line 86, and can be configured as an independent electrical device. become.

  The operation of the above configuration is shown in FIG. FIG. 5A is a diagram showing the room mirror 20 in a normal posture with an inclination angle = 0 degree. In the normal posture, the display range image 62 that is an image of the far-side scene range is transmitted to the display 26 of the rear-view mirror 20, so that the driver can view the far-side scene of the vehicle 12 in the rear-view mirror 20. A range of images can be seen. Thus, even when there is a passenger or the like in the passenger compartment 14 and the rear-view mirror 20 in the mirror state cannot see the scene behind the vehicle 12, the display on the rear-view mirror 20 is switched to the display mode. The vehicle periphery recognition is supported by the image displayed on the screen.

  FIG. 5B is a diagram showing the room mirror 20 in an inclined posture with an inclination angle = Δθ. When the vehicle is tilted, a display range image 64 that is an image of a scene range on the road surface near the rear end of the vehicle 12 behind the vehicle is transmitted to the display 26 of the rearview mirror 20, so that the driver can When the vehicle is backed, the scene of the road surface backed by the room mirror 20 can be accurately seen. In this way, vehicle periphery recognition is supported.

  Since the inclination angle = Δθ is a continuous value, the scene on the road surface closer to the rear end of the vehicle 12 can be displayed as the inclination angle = Δθ is increased.

  According to the above configuration, the display range image displayed on the display 26 of the room mirror 20 can be changed in the captured image 60 of the in-vehicle camera 16 without a mechanism for moving the in-vehicle camera 16. In addition, as shown in FIG. 1C, since the image of the scene close to the vehicle 12 is enlarged as compared with the image of the distant scene, the range that the driver wants to watch when the vehicle 12 is backed. Can be displayed large on the display 26. The display range image can be changed by changing the posture state of the room mirror 20, and the posture state can be changed on a daily basis by a driver with respect to a general room mirror composed of a mirror. Therefore, the operation is intuitive and easy for the driver to understand.

  DESCRIPTION OF SYMBOLS 10 Vehicle periphery recognition support system, 12 Vehicle, 14 Car compartment, 16 Car-mounted camera, 17 Imaging angle of view, 18 Mounting member, 20, 80 (Built-in display) Room mirror, 22 Case, 24 Mirror surface part, 26 Display, 28 Circuit board, 30 posture variable portion, 32 base member, 34 lid member, 36 ball, 38 arm, 40 posture detection portion, 42 acceleration sensor, 44, 46, 84, 86 signal line, 50 control device, 52 display range image formation Part, 60 captured image, 62, 64 display range image, 68 substrate, 70 encoder, 72 detection bar, 74 disc, 76 angle detection sensor.

Claims (3)

An in-vehicle camera that captures a scene outside the vehicle;
A display built-in room having a mirror surface portion that reflects a scene outside the vehicle and a display that displays at least a part of an image captured by a vehicle-mounted camera that reflects the scene outside the vehicle, and is attached to a predetermined mounting position in the vehicle interior Mirror,
A posture variable unit capable of changing the display built-in room mirror posture with respect to a predetermined mounting position between a normal posture and an inclined posture inclined downward from the normal posture;
An attitude detection unit for detecting the attitude state of the display built-in room mirror;
An image in a range where the in-vehicle camera captures a scene within the imaging angle of view is used as a captured image, and an image in a different range among the captured images is formed as a display range image in accordance with the difference in the posture state of the display built-in room mirror. A display range image forming unit to be transmitted to the display;
A vehicle periphery recognition support system comprising: In the vehicle periphery recognition support system according to claim 1,
The mirror part of the display built-in room mirror reflects the scene behind the vehicle,
The on-vehicle camera captures a scene behind the vehicle and is a vehicle periphery recognition support system. In the vehicle periphery recognition support system according to claim 2,
The display image range image forming unit
When the state of the built-in display rearview mirror is the normal posture, the image of the range of the far side scene along the road surface behind the vehicle is used as the display range image,
A vehicle periphery recognition support system characterized in that, when the state of the display built-in room mirror is an inclined posture, an image of a scene range on the road surface near the rear end of the vehicle is used as a display range image behind the vehicle.

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