Method of scalable fractional motion estimation for...

Details Method of scalable fractional motion estimation for... Method of scalable fractional motion estimation for...

2007-06-15

2011-12-20

Barron, Jr., Gilberto (Department: 2432)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

08081681

ABSTRACT:
A multimedia coding system has different picture qualities with different coding characteristics. It is done through a scaleable fractional motion estimation (FME) in H.264 and a block size trend prediction FME. Three quality levels are thus obtained. The first level processes a complete calculation and obtains a best picture; the second level, fewer calculation with a low power consumption and an acceptable picture quality; and the third level, fewest calculation with a fastest speed. And the present invention is suitable for hardware design to obtain a high efficiency, a low cost and a high performance.

REFERENCES:
patent: 2006/0002474 (2006-01-01), Au et al.
patent: 2007/0217515 (2007-09-01), Wang et al.
Lee et al. “Variable block size motion estimation algorithm and its hardware architecture for H.264/AVC ,” IEEE, pp. 741-744, May 2004.
Chen et al. “Fast ingeter-pel and fractional-pel motion estimation for H.264/AVC,” Science Direct, pp. 264-290.
Chang et al. “A 7mW-to-183mW Dynamic Quality-Scalable H.264 Video Encoder Chip,” IEEE, pp. 280-281, 603. Feb. 2007.

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