Color and geometry distortion correction system and method
AssigneeSilicon Optix Inc.
InventorsZorawar S. Bassi, Vladimir Lachine
Life of this patent
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Abstract
Systems and methods for correcting color and geometry in an image are disclosed. In one example, image data are received in one format and are then converted to another format to perform color correction. In another example, geometric corrections are first applied to each color component of an image data to correct for different distortions including lateral chromatic aberrations. Next, color distortion corrections are performed to correct for each color component of the image data independently. In one particular exemplary embodiment, color distortion corrections are applied using surface function representation of a grid data transformation relating uncorrected values to corrected values.
Claims33
A method for correcting color distortions in an image, said method comprising:
- (a) obtaining input image data in a first format color space;
- (b) converting the input image data from the first format color space into a second format color space;
- (c) correcting color distortions in the converted image data for each color component independently in the second format color space and thereby generating color distortion corrected data;
- such that a displayed image based on the color distortion corrected data is visually free of color distortions.
A method for correcting color distortions in an image having color data points, said method comprising:
- (a) obtaining grid transformation data relating distorted color data points to corrected color data points, said grid transformation data spanning color space and image coordinate space,
- (b) representing the grid transformation data using surface functionals,
- (c) applying the surface functionals in an image for each color component independently to correct for color distortions in the image data.
A method for correcting an image having color components, in an image display system having geometric and color distortions, said method comprising:
- (a) obtaining image data for each of said color components;
- (b) correcting for geometric distortions in the image display system for each color component independently and thereby generating geometrically corrected image data,
- (c) correcting for color distortions in the geometric corrected image data for each color component separately to generate geometric distortion corrected and color distortion corrected image data,
- such that a displayed image based on the geometric distortion corrected and color distortion corrected image data is visually geometric distortion free and color distortion free.
An electronic system for correcting color distortions in an image, said system compromising:
- (a) an interface adapted to obtain image data in a first format color space;
- (b) conversion means adapted to convert the input image data from the first format color space into a second format color space;
- (c) color correction means adapted to correct color distortions in the image data for each color component independently in the second format color space and thereby generating color distortion corrected data;
- such that a displayed image based on the color distortion corrected data is visually free of color distortions.
Dependencies are inferred from the claim text.