Segmented motion estimation with no search for small block...

Details Segmented motion estimation with no search for small block... Segmented motion estimation with no search for small block...

2003-03-26

2008-12-30

Dastouri, Mehrdad (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240240

Reexamination Certificate

active

07471725

ABSTRACT:
An apparatus including a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate a plurality of first motion vectors and first error scores in response to a search of a macroblock of an image. The search generally includes a range of motion vectors of the macroblock. The second circuit may be configured to generate a plurality of second motion vectors and second error scores for a plurality of sub-blocks of the macroblock in response to a set of discrete candidate motion vectors selected from the plurality of first motion vectors. The third circuit may be configured to segment the macroblock in response to (i) the plurality of first motion vectors and first error scores and (ii) the plurality of second motion vectors and second error scores.

REFERENCES:
patent: 5594504 (1997-01-01), Ebrahimi
patent: 5748247 (1998-05-01), Hu
patent: 2004/0028282 (2004-02-01), Kato et al.
International Standardization Working Document ITU-T SG16 VCEG-M81, “H.26L” Test Model Long Term No. 7 (TML-7), May 3, 2001 pp. 14 and 24-27.
“Unified Coding Style for the H.26L Reference Software”, Suhring, Karsten, Sep. 2002, Heinrich Hertz Institute, pp. 1-5.

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