发明授权
US08290056B2 Video decoder system and method with video enhancement using direct contrast enhancement in the spatial domain
有权
视频解码系统和视频增强方法在空间域中使用直接对比度增强
- 专利标题： Video decoder system and method with video enhancement using direct contrast enhancement in the spatial domain
- 专利标题（中）： 视频解码系统和视频增强方法在空间域中使用直接对比度增强
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申请号： US12151382申请日： 2008-05-06
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公开(公告)号： US08290056B2公开(公告)日： 2012-10-16
- 发明人: Yosef Stein , Hazarathaiah Malepati
- 申请人： Yosef Stein , Hazarathaiah Malepati
- 申请人地址： US MA Norwood
- 专利权人： Analog Devices, Inc.
- 当前专利权人： Analog Devices, Inc.
- 当前专利权人地址： US MA Norwood
- 代理机构： Kenyon & Kenyon LLP
- 主分类号： H04N7/12
- IPC分类号： H04N7/12
摘要：
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.