Video decoder system and method with video enhancement using direct contrast enhancement in the spatial domain
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United States of America Patent
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Oct 16, 2012
Grant Date -
Aug 6, 2009
app pub date -
May 6, 2008
filing date -
Jan 31, 2008
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Abstract
Video decoding with video enhancement using direct contrast enhancement in the spatial domain including transforming the decoded intramacroblock output to a matrix of spatial domain coefficients; multiplying the spatial domain coefficients with the corresponding intramacroblock enhancement matrix elements of an intramacroblock enhancement matrix to provide enhanced spatial coefficients; transforming said enhanced spatial coefficients to the temporal domain to generate an enhanced decoded intramacroblock; multiplying the spatial domain intermacroblock coefficients from the entropy decoder of the video decoder with the corresponding intermacroblock enhancement matrix elements of an intermacroblock enhancement matrix to provide enhanced spatial coefficients, and transforming the enhanced spatial coefficients to generate enhanced decoded residual coefficients.
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