Method for encoding motion image and apparatus therefor

Details Method for encoding motion image and apparatus therefor Method for encoding motion image and apparatus therefor

1995-11-30

1997-10-07

Au, Amelia

Television

Bandwidth reduction system

Data rate reduction

348420, H04N 736

Patent

active

056753861

ABSTRACT:
A method for encoding a motion image and an apparatus therefor includes first and second buffers, a motion estimator/compensator, an MC error generator/divider, first and second quadtree processors, a multiplexer, a quantizer, a variable length coder, a bit rate controller, an inverse quantizer, first and second inverse quadtree processors, and an adder/filter. Here, MC errors generated after motion compensation are divided into accumulated and compensation errors according to the characteristics, and then encoded. Thus, bit generation can be reduced compared with the conventional method, picture quality can be improved, and a process structure can be simplified.

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Liou, "Visual Telephony as an ISDN Application", IEEE Communication Magazine, vol. 28(2), pp. 30-38, Feb. 1990.
Strobach, "Tree-Structured Scene Adaptive Coder", IEEE Transactions on Communications, vol. 38, No. 4, pp. 477-485, Apr. 1990.

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