Image generation device and method for vehicle
First Claim
1. An image generation device for a vehicle having at least one camera and a monitor that displays an image derived from images generated by the at least one camera, the image generation device comprising:
- an input frame buffer operable to receive pixel data representing images generated by at least one camera;
a rearrangement table that describes rules for rearrangement of the pixel data;
an error-correction table that describes rules for adjusting the pixel data to correct an installation error of the at least one camera;
an output frame buffer for receiving rearranged pixel data for display as an image on the monitor; and
a controller operable to read the pixel data from the input frame buffer, to rearrange the pixel data based on at least one of the rearrangement table and the error-correction table and to store the rearranged pixel data in the output frame buffer.
1 Assignment
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Accused Products
Abstract
A device and method for easy correction of camera installation errors in a vehicle. A device comprises an input frame buffer receiving pixel data representing camera-generated images, a rearrangement table describing rules for rearrangement of the pixel data, an error-correction table describing rules for adjusting the pixel data to correct an installation error of the cameras, an output frame buffer receiving rearranged pixel data for display and a controller reading the pixel data from the input frame buffer, rearranging the pixel data based on the rearrangement and/or the error-correction table and storing rearranged pixel data in the output frame buffer. The method includes preparing plural error-correction tables corresponding to a magnitude of an installation error, displaying the composite image and correcting the installation error using at least one of the error-correction tables as a reference for a respective image used to create the composite image.
22 Citations
18 Claims
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1. An image generation device for a vehicle having at least one camera and a monitor that displays an image derived from images generated by the at least one camera, the image generation device comprising:
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an input frame buffer operable to receive pixel data representing images generated by at least one camera; a rearrangement table that describes rules for rearrangement of the pixel data; an error-correction table that describes rules for adjusting the pixel data to correct an installation error of the at least one camera; an output frame buffer for receiving rearranged pixel data for display as an image on the monitor; and a controller operable to read the pixel data from the input frame buffer, to rearrange the pixel data based on at least one of the rearrangement table and the error-correction table and to store the rearranged pixel data in the output frame buffer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An image generation method for a vehicle incorporating an image generation device that receives pixel data representing images of surroundings of the vehicle from at least one camera and displays a composite image to the driver, the method comprising:
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receiving plural error-correction tables corresponding to a magnitude of an installation error of the at least one camera; reading the pixel data of a respective camera; correcting the installation error of the respective camera by rearranging the pixel data of a respective image used to create the composite image using at least one of a rearrangement table describing rules for rearrangement of the pixel data and at least one of the plural error-correction tables; and displaying the composite image using the rearranged pixel data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification