发明授权
US5920359A Video encoding method, system and computer program product for
optimizing center of picture quality
失效
视频编码方法,系统和计算机程序产品,用于优化图像质量中心
- 专利标题: Video encoding method, system and computer program product for optimizing center of picture quality
- 专利标题(中): 视频编码方法,系统和计算机程序产品,用于优化图像质量中心
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申请号: US858831申请日: 1997-05-19
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公开(公告)号: US5920359A公开(公告)日: 1999-07-06
- 发明人: Lawrence David Curley , Charles John Stein , Everett George Vail, III
- 申请人: Lawrence David Curley , Charles John Stein , Everett George Vail, III
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: H04N7/30
- IPC分类号: H04N7/30 ; H04N7/26 ; H04N7/32 ; H04N7/36 ; H04N7/50
摘要:
A digital video encoding method, apparatus and computer program product are described with enhanced encoding of a picture having a plurality of macroblocks. The approach is to partition the picture into at least two regions and then to set or adjust at least one encoding parameter for each macroblock of the picture based upon the region of the picture within which the macroblock is located. As one specific implementation, the picture is partitioned into a center region and at least one outer region and the at least one encoding parameter is set to enhance picture quality in the center region at the expense of picture quality in the at least one outer region. The encoding parameter can, for example, be a motion estimation parameter, a quantization value, or a target bits per macroblock.
公开/授权文献
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