Comb filter system and method
AssigneePixelworks, Inc.
InventorNeil D. Woodall
Life of this patent
Estimating the term…
Abstract
I describe and claim a temporal comb filtering system and method. The temporal comb filter system includes a comb filter to temporally process separated luminance and chrominance components from an image field responsive to image data from at least one other image field and a panel to display the processed components. The comb filter includes a cross-chroma detector to detect luminance information within chrominance data from a first image field responsive to chrominance data from at least one other image field and a cross-luma detector to detect chrominance information within the luminance data from the first image field responsive to the luminance data from at least one other image field.
Claims20
A system comprising:
- a Y/C separator operable to separate an image field into luminance and chrominance components;
- a comb filter operable to temporally process the separated luminance and chrominance components from the image field responsive to image data from at least one other image field, where the comb filter comprises:
- a cross-chroma detector operable to detect luminance information within the chrominance components from the image field responsive to the image data from the at least one other image field, where the cross-chroma detector is further operable to reduce the chrominance components from the image field responsive to the detected luminance information;
- a cross-luma detector operable to detect chrominance information within the luminance components from the image field based on the image data from the at least one other image field;
- and
- a cross-luma demodulator operable to demodulate the chrominance information and to combine the demodulated chrominance information with the reduced chrominance components;
- and
- a non-volatile memory operable to store the image field and the at least one other image field.
A system comprising:
- a Y/C separator operable to separate an image field into luminance and chrominance components;
- a comb filter operable to temporally process the separated luminance and chrominance components from the image field responsive to image data from at least one other image field, where the comb filter comprises:
- a cross-chroma detector operable to detect luminance information within the chrominance components from the image field responsive to the image data from the at least one other image field;
- a cross-luma detector operable to detect chrominance information within the luminance components from the image field responsive to the image data from the at least one other image field, where the cross-luma detector is further operable to reduce the luminance components from the image field based on the detected chrominance information;
- and
- a cross-chroma modulator operable to modulate the luminance information and to combine the modulated luminance information with the reduced luminance components;
- and
- a non-volatile memory operable to store the image field and the at least one other image field.
Dependencies are inferred from the claim text.