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US 2023/0412756 A1Published application
Image synthesis device for electronic mirror and method thereof
AssigneeKabushiki Kaisha Toshiba
InventorHideyuki TSUTSUMITAKE
Life of this patent
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Abstract
According to one embodiment, an image synthesis device for an electronic mirror includes a rear camera which obtains a first image from a first position, and a side camera which obtains a second image of the same direction with a view of the rear camera from a second position. The second image includes a view obstruction. When a part of the first image is connected as a complementary image to the view obstruction of the second image, an image processing device converts an image of the view obstruction into a translucent image, superimposes the complementary image on the translucent image, and obtains a third image which remains an outline of the complementary image.
Claims12
An image synthesis device for an electronic mirror, the device comprising:
- a rear camera which obtains a first image of a first view from a first position of a vehicle, as a rear view of the vehicle, by a first field of view;
- a side camera which obtains a second image from a second position on a more front side than the first position, by a second field of view including a view obstruction as a side part of the vehicle, in a direction of the first view;
- a translucent image processor which converts an image of the view obstruction included in the second image into a translucent image;
- an image synthesizer which obtains a third image by synthesizing a projective transformation image, as a part of the first image, subjected to projective transformation into a view position of the side camera and corresponding to a part of the translucent image of the second image;
- and
- a recording/reproducing device being connected to the image synthesis device, and an image signal being able to record in the recording/reproducing device in response to a traveling speed, vibration or sound set in particular, wherein
- the projective transformation image includes
- a first projective transformation image obtained by subjecting an image of a viewpoint of the rear camera to projective transformation into an image of a view position of the side camera, based on a far plan position on the rear side of the vehicle, by a first image processor, and
- a second projective transformation image obtained by subjecting an image of a viewpoint of the rear camera to projective transformation into an image of a viewpoint of the side camera based on a ground position closer to a capture position of the side camera than the far plan position, by a second image processor;
- and
- in the first projective transformation image or the second projective transformation image, the far plan position or the ground position is adjusted by a setting made in accordance with a speed of the vehicle.
8 more elements
An image synthesis method of an electronic mirror, the method using:
- in an electronic mirror mounted on a vehicle to display an image of a rear side of the vehicle,
- a rear camera which obtains a first image of a first view from a first position, as a rear view of the vehicle, by a first field of view;
- a side camera which obtains a second image from a second position on a more front side than the first position, by a second field of view including a view obstruction as a side part of the vehicle, in a direction of the first view;
- an image processor which proceeds the first image and the second image from the rear and side cameras, and
- a recording/reproducing device being connected to the image synthesis device, and an image signal being able to record in the recording/reproducing device in response to a traveling speed, vibration or sound set in particular,
- the method comprising:
- converting an image of the view obstruction included in the second image into a translucent image;
- adding a line to an outline of the translucent image in the second image;
- and
- obtaining a third image by synthesizing a projective transformation image, as a part of the first image, subjected to projective transformation into a view position of the side camera and corresponding to a part of the translucent image of the second image, wherein
- when the projective transformation image is generated,
- a first projective transformation image obtained by subjecting an image of a viewpoint of the rear camera to projective transformation into an image of a view position of the side camera, based on a far plan position on the rear side of the vehicle, is generated by a first image processor,
- a second projective transformation image obtained by subjecting an image of a viewpoint of the side camera to projective transformation into an image of a viewpoint of the rear camera based on a ground position closer to a capture position of the side camera than the far plan position, is generated by a second image processor, and
- in the first projective transformation image or the second projective transformation image, the far plan position or the ground position is adjusted by a setting made in accordance with a speed of the vehicle.
11 more elements
Dependencies are inferred from the claim text.