Invention Grant
US07903731B2 Methods and transcoders that estimate an output macroblock and motion vector for video transcoding
有权
估计输出宏块和视频转码运动矢量的方法和代码转换器
- Patent Title: Methods and transcoders that estimate an output macroblock and motion vector for video transcoding
- Patent Title (中): 估计输出宏块和视频转码运动矢量的方法和代码转换器
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Application No.: US11238567Application Date: 2005-09-29
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Publication No.: US07903731B2Publication Date: 2011-03-08
- Inventor: Jin-Soo Cho , Jong-Woo Bae , Dong-Wan Seo , Yoon-Sik Choe
- Applicant: Jin-Soo Cho , Jong-Woo Bae , Dong-Wan Seo , Yoon-Sik Choe
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Myers Bigel Sibley & Sajovec, P.A.
- Priority: KR10-2004-0078529 20041002
- Main IPC: H04N7/12
- IPC: H04N7/12
Abstract:
Methods and transcoders are disclosed for video transcoding input macroblocks to an output macroblock. One of the methods estimates an output macroblock mode for the video transcoding. A spatial weight is determined based on size of overlapping areas of each of the input macroblocks with a correlation area that is correlated with the output macroblock. A discrete cosine transform (DCT) weight is determined based on a number of zero DCT coefficients of each of the input macroblocks that overlap the correlation area. The output macroblock mode is estimated based on the spatial weight and the DCT weight.
Public/Granted literature
- US20060072665A1 Methods and transcoders that estimate an output macroblock and motion vector for video transcoding Public/Granted day:2006-04-06
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