Motion compensated prediction interframe coding system

Details Motion compensated prediction interframe coding system Motion compensated prediction interframe coding system

1990-10-12

1992-09-01

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, 358138, 358105, H04N 7133, H04N 7137

Patent

active

051444267

ABSTRACT:
A motion compensated prediction interframe coding system which first measures characteristics regarding the fineness of a pattern or texture of a picture, which is represented by an input television signal and is divided into a group of continuous blocks each quantized by using a quantization step size, and changes the quantization step size into a smaller one if quantizes a block having a picture pattern or texture finer than patterns of the other blocks. Thereby, an amount of generated codes can be limited but a motion compensated prediction frame coding operation can be performed without degrading the fineness of the texture of the original input picture.

REFERENCES:
patent: 4517596 (1985-05-01), Suzuki
patent: 4821119 (1989-04-01), Gharaui
Multidimensional Signal Processing of TV Picture, Nikkan Kogyo Shinbun Company, Chapter 7 "Efficient Coding", pp. 213-291 (Nov. 15, 1988).
CCITT(Comite Consultatif Internationale Telegraphique et Telephonique) SGXV Document #525: Description of Ref. Model 8 (RM 8), Working Party XV/4 Specialist Group on Coding for Visual Telephony (Jun. 9, 1989).

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