Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-08-30
2005-08-30
Rao, Andy (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240140, C375S240160
Reexamination Certificate
active
06937656
ABSTRACT:
A method of coding a moving picture includes dividing a picture into a plurality of blocks, and selectively performing one of global motion compensation processing and local motion compensation processing on each of the blocks to obtain predictive errors for the block, orthogonally transforming the predictive errors to obtain orthogonal transform coefficients, and quantizing the orthogonal transform coefficients using a quantizing parameter. Which type of motion compensation processing is performed for each block is determined based on a result of comparing evaluation values for the two types of motion compensation processings with each other. The evaluation values are calculated based on (1) a sum of absolute values of predictive errors for the block obtained when the type of compensation processing is performed on the block and (2) a value determined by the quantizing parameter.
REFERENCES:
patent: 5235419 (1993-08-01), Krause
patent: 5392073 (1995-02-01), Jeong
patent: 5473379 (1995-12-01), Horne
patent: 5510834 (1996-04-01), Weiss et al.
patent: 5592228 (1997-01-01), Dachiku et al.
patent: 5657087 (1997-08-01), Jeong et al.
patent: 5790206 (1998-08-01), Ju
patent: 5801778 (1998-09-01), Ju
patent: 5812197 (1998-09-01), Chan et al.
patent: 6008852 (1999-12-01), Nakaya
patent: 6014181 (2000-01-01), Sun
patent: 6205177 (2001-03-01), Girod et al.
patent: 6735253 (2004-05-01), Chang et al.
patent: 6-237454 (1994-08-01), None
Kamikura et al., “Global Motion Compensation Method in Video Coding”, B-1 (the transaction of the Institute of Electronics; Information and Communication Engineers B-I) vol. No. 12, pp. 944-952, Dec. 1993, including English Abstract and translation of section 3 (p. 947).
K. Kamikura, et al., “Global Motion Compensation Method in Video Coding”,Transactions of the Institute of Electronics, Information and Communication Engineers of Japan, vol., J76-B-1, No. 12, Dec. 1993, pp. 944-952 (in Japanese).
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