Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-07-31
2007-07-31
An, Shawn S. (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240130, C375S240140, C375S240120, C375S240150, C348S699000, C382S238000
Reexamination Certificate
active
10214310
ABSTRACT:
An apparatus and method of motion estimation and mode decision 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 (sub-GOP). 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 base vector and a mode of the first macro block.
REFERENCES:
patent: 5311310 (1994-05-01), Jozawa et al.
patent: 5528300 (1996-06-01), Kim
patent: 5557341 (1996-09-01), Weiss et al.
patent: 6671319 (2003-12-01), Chang et al.
An Shawn S.
Staas & Halsey , LLP
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