Interframe motion predicting method and picture signal coding/de

Details Interframe motion predicting method and picture signal coding/de Interframe motion predicting method and picture signal coding/de

1992-11-05

1995-01-31

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348412, 348413, 348415, 348416, H04N 7133, H04N 7137

Patent

active

053862341

ABSTRACT:
An interframe motion predicting method for prediction of the motion in a bidirectionally predictive-coded frame from an intra-coded frame and a predictive-coded frame, predicts the motion in another bidirectionally predictive-coded frame from the preceding bidirectionally predictive-coded frame and the predictive-coded frame. A picture signal coding apparatus executes orthogonal transformation of a picture signal, then quantizes the transformed data, and codes the data thus quantized. The apparatus includes a local decoder for the quantized data; first and second memories for storing the decoded picture data of an intra-coded or bidirectionally predictive-coded frame, and a predictive-coded frame respectively; a predictive picture generator for generating a predictive picture of a second bidirectionally predictive-coded frame; and a difference calculator for calculating the difference between the predictive picture and the original picture signal corresponding thereto. A picture signal decoding apparatus includes inverse multiplexer for separating the coded data into interframe predictive error data and vector coded data; a decoder for generating decoded picture data on the basis of such error data; first and second memories for storing the decoded picture data of the intra-coded frame and the predictive-coded frame respectively; a predictive picture generator for generating a predicted picture of a second bidirectionally predictive-coded frame; and a frame switching selector for selectively rearranging the decoded picture data in the order of reproduction.

REFERENCES:
patent: 4651206 (1987-03-01), Ohki
patent: 4837618 (1989-06-01), Hatori
patent: 4853780 (1989-08-01), Kojima et al.
patent: 4985768 (1991-01-01), Sugiyama
patent: 4987490 (1991-01-01), Ohta
patent: 4999705 (1991-03-01), Puri
patent: 5038209 (1991-08-01), Hang
patent: 5057918 (1991-10-01), Dennoyelle et al.
patent: 5079630 (1992-01-01), Golin et al.
patent: 5089888 (1992-02-01), Zdepski et al.
patent: 5089889 (1992-02-01), Sugiyama
patent: 5111294 (1992-05-01), Asai et al.
patent: 5134478 (1992-07-01), Golin
patent: 5136378 (1992-08-01), Tsurube
patent: 5144426 (1992-09-01), Tanaka et al.
patent: 5150432 (1992-09-01), Ueno et al.
patent: 5155593 (1992-10-01), Yonemitsu et al.
Coded Representation of Picture and Audio Information 1991, Nov., Toshinori Odaka, Hideyuki Ueno et al.

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