APPARATUS OF MOTION ESTIMATION AND MODE DECISION AND METHOD THEREOF

Japanese Patent JP3908633

B2

PROBLEM TO BE SOLVED: To provide an apparatus and method for motion estimation and mode decision which is capable of improving coding speed while maintaining the same re-compression efficiency in scanning format conversion.
SOLUTION: The apparatus and method of motion estimation and mode decision of this invention includes a candidate vector group generation unit generating a candidate vector group including a motion vector of an adjacent image crossing a first macro block, where the first macro block is a macro block of an image before scaling, and the first macro block and the adjacent image exist in a same sub-group of a picture. A motion vector estimation unit estimates a base vector of a second macro block from the motion vector and the candidate vector group of the first macro block overlapped with the second macro block, where the second macro block is a macro block of an image after scaling. A mode decision unit determines a mode of the second macro block from the estimated motion vector and a mode of the first macro block.

Song Song

JP2002263307A

April 25, 2007

September 09, 2002

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Samsung Electronics Co.,Ltd.

H04N19/50; H03M7/36; H04N7/01; H04N19/105; H04N19/114; H04N19/134; H04N19/139; H04N19/159; H04N19/189; H04N19/196; H04N19/40; H04N19/503; H04N19/51; H04N19/513; H04N19/577; (IPC1-7): H04N7/32; H03M7/36; H04N7/01

JP2001204027A

WO2001095633A1

Susie,J W.,et al,Field-to-frame Transcoding with Spatial and Temporal Downsampling,Proc.of IEEE Int. Conf. on Image Processing,1999年,Vol.4,P.271-275
Shen,G., et al,Transcoder with arbitrarily resizing capability,Proc.of Int. Symp. on Circuits and Systems 2001,2001年,Vol.5,P.25-28

Masatake Shiga
Takashi Watanabe

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