Method and apparatus for improved video coding using a center-bi

Details Method and apparatus for improved video coding using a center-bi Method and apparatus for improved video coding using a center-bi

1996-11-27

1999-07-20

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348407, 348420, H04N 1102

Patent

active

059262214

ABSTRACT:
A video encoder optimized so as to be implemented using general purpose DSPs or as software executable on a general purpose microprocessor includes a modified motion detector module (50) which classifies blocks in the currently processing image as moving or stationary. Blocks classified as moving are then processed by an modified motion compensation module (52) which uses a center-biased orthogonal searching procedure to match the block with a previously processed image. A zero block detector module (54) determines whether the block will generate a zero-valued block after being processed by a transform module 18 and a quantization module 20. If a zero-valued block is predicted, the transformation module 18 and the quantization module 20 are bypassed.

REFERENCES:
patent: 4691230 (1987-09-01), Kaneko et al.
patent: 5130797 (1992-07-01), Murakami et al.
patent: 5173772 (1992-12-01), Choi
patent: 5226093 (1993-07-01), Iwase
patent: 5475433 (1995-12-01), Jeong
patent: 5477272 (1995-12-01), Zhang et al.
patent: 5485279 (1996-01-01), Yonemitsu et al.
patent: 5512939 (1996-04-01), Zhou
patent: 5557341 (1996-09-01), Weiss et al.
patent: 5612751 (1997-03-01), Kondo
Puri, et al., "An Efficient Block-Matching Algorithm For Motion-Compensated Coding", Proc. IEEE 1987, pp. 1063-1066.
"Video Coding for Narrow Telecommunication Channels at, 64 kbit/s", International Telecommunication Union, Draft H. 263, Apr. 7, 1995, pp. 1-51.

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