Method for false color suppression
AssigneeRealtek Semiconductor Corp.
InventorPo-Wei Chao
Life of this patent
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Abstract
A false-color suppression method corrects a pixel value of a pixel in a target location of a target frame while de-interlacing video data. The video data includes consecutive first, second and third fields, and the target frame corresponds to the third field. The method records an interpolation type of a first pixel with respect to the target location of a previous frame corresponding to the second field, and corrects the pixel value of the pixel in the target location of the target frame using a pixel value of a reference pixel if the interpolation type of the first pixel is an inter-field interpolation.
Claims20
A false-color suppression method for correcting a pixel value of a pixel in a target location of a target frame while de-interlacing video data including consecutive first, second, and third fields, wherein the target frame corresponds to the third field, the method comprising:
- (a) recording an interpolation type of a first pixel with respect to the target location of a previous frame corresponding to the second field;
- and
- (b) correcting the pixel value of the pixel in the target location of the target frame using a pixel value of a reference pixel if the interpolation type of the first pixel is an inter-field interpolation.
A false-color suppression method for correcting a pixel value of a pixel in a target location of a target frame generated from video data, the video data including consecutive first, second and third fields, wherein the target frame corresponds to the third field, the method comprising:
- (a) generating a first pixel value for the target location of an output frame corresponding to the second field;
- and
- (b) correcting the pixel value of the pixel in the target location of the target frame using a pixel value of a reference pixel if the first pixel is generated through an inter-field interpolation.
A video processing method comprising:
- when de-interlacing video data, selecting one of a plurality of interpolation types for each pixel location to be processed so as to calculate a corresponding pixel value for each pixel location;
- recording the selected interpolation type of each pixel location to be processed;
- and
- determining whether to perform a false-color suppression operation for a calculated pixel value according to the corresponding recorded interpolation type.
A video processing method for processing video data having a plurality of input image fields to generate a plurality of output image frames, the method comprising:
- for each pixel location of at least a portion of a frame among the output image frames, determining a type of interpolation operation;
- for each said pixel location, performing a de-interlacing operation by performing interpolation on a plurality of pixel values of the input image fields according to the determined type of interpolation operation, to generate a pixel value of each said pixel location;
- and
- for a first pixel location of said portion, determining whether to perform a false-color suppression operation according to the determined types of interpolation operation of a plurality of pixel locations of said portion, to correct the pixel value of said pixel location.
Dependencies are inferred from the claim text.