Invention Grant
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
- Patent Title: Video decoder system and method with video enhancement using direct contrast enhancement in the spatial domain
- Patent Title (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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Application No.: US12151382Application Date: 2008-05-06
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Publication No.: US08290056B2Publication Date: 2012-10-16
- Inventor: Yosef Stein , Hazarathaiah Malepati
- Applicant: Yosef Stein , Hazarathaiah Malepati
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Kenyon & Kenyon LLP
- Main IPC: H04N7/12
- IPC: H04N7/12
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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