发明名称 |
Motion vector estimation method and encoding mode determining method |
摘要 |
A motion vector estimation method and an encoding mode determining method for converting an input moving picture image into a compressed moving picture image suitable for a desired frame rate by re-determining a motion vector and a motion-compensated block type when the frame rate of the input moving picture image needs to be reduced. A method of estimating a motion vector of a motion vector of a macroblock of a current frame in a transcoder includes determining whether the motion vector of the macroblock of the current frame is created with reference to a macroblock of a dropped frame and estimating the motion vector of the macroblock of the current frame by tracing back a reference frame until an undropped frame is found, if the motion vector of the macroblock of the current frame is created with reference to the macroblock of the dropped frame.
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申请公布号 |
US7848426(B2) |
申请公布日期 |
2010.12.07 |
申请号 |
US20040015277 |
申请日期 |
2004.12.20 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;SEJONG INDUSTRY-ACADEMY COOPERATION FOUNDATION |
发明人 |
LEE YUNG-IYUL;SHIN IL-HONG |
分类号 |
H04N7/12;H04N7/32;H04N7/26;H04N7/36;H04N7/50;H04N11/02;H04N11/04 |
主分类号 |
H04N7/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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