Image synthesis display method and apparatus for vehicle camera
First Claim
1. An image synthesis display method for a vehicle camera comprising the steps of:
- obtaining images from a plurality of vehicle cameras shooting the periphery of a local vehicle;
compensating the images obtained from the plurality of vehicle cameras to reduce differences between pixel data of the images of the plurality of vehicle cameras based on a flag table;
superimposing the images to form a synthesized image;
displaying the synthesized image on a screen of a display device,wherein the flag table defines pixel areas in the images obtained from adjacent vehicle cameras as pixel areas for the compensation process, the pixel areas corresponding to a common portion between the images obtained from the adjacent vehicle cameras; and
wherein the images obtained from the plurality of vehicle cameras are compensated on the basis of pixel data of the images which correspond to the pixel areas defined by the flag table.
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Abstract
When multiple cameras (CAM1) to (CAM8) for shooting the periphery of a local vehicle are mounted on the vehicle, and when obtained camera images are to be synthesized to display a synthesized image on the screen of a display device (16), the pixel data for the camera images constituting the synthesized image are compensated for, so that differences in the pixel data for adjacent camera images is reduced. For example, the pixel data are corrected so their values equal the average values of the pixel data for the adjacent camera images. Therefore, an easily viewed image, produced by synthesizing the images obtained by the multiple vehicle cameras, can be displayed on the monitor device (16).
76 Citations
14 Claims
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1. An image synthesis display method for a vehicle camera comprising the steps of:
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obtaining images from a plurality of vehicle cameras shooting the periphery of a local vehicle; compensating the images obtained from the plurality of vehicle cameras to reduce differences between pixel data of the images of the plurality of vehicle cameras based on a flag table; superimposing the images to form a synthesized image; displaying the synthesized image on a screen of a display device, wherein the flag table defines pixel areas in the images obtained from adjacent vehicle cameras as pixel areas for the compensation process, the pixel areas corresponding to a common portion between the images obtained from the adjacent vehicle cameras; and wherein the images obtained from the plurality of vehicle cameras are compensated on the basis of pixel data of the images which correspond to the pixel areas defined by the flag table. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14)
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10. An image synthesis display method for a vehicle camera comprising the steps of:
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synthesizing images obtained by a plurality of vehicle cameras shooting the periphery of a local vehicle; displaying a synthesized image on the screen of a display device, wherein the synthesized image of the plurality of vehicle cameras is displayed on the screen by performing a compensation to reduce differences between pixel data of the adjacent camera images of the plurality of vehicle cameras, wherein, when three or more vehicle cameras are prepared, a camera image whose average value is nearest the average value for pixel data for all the camera images is regarded as a reference image, wherein the compensation of the image data of the adjacent camera images are performed to adjust to the average value for the reference image.
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Specification