Apparatus and method of coding/decoding video data

Details Apparatus and method of coding/decoding video data Apparatus and method of coding/decoding video data

1993-06-18

1995-11-14

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

348415, H03M 700, H04N 712

Patent

active

054670861

ABSTRACT:
A method and apparatus for coding and decoding video data including a still image or active image on an intraframe basis. The coding system defines a search area composed of reconstructed data blocks and determines which one of the blocks within the search area has a pattern similar to a present data block that is in the process of being coded. The system then computes the amount of displacement between the present data block and the reconstructed data block from the search area that has a pattern very similar to that of the present data block. The coded data is then stored in memory or transmitted. The decoding system implements a reverse process of the coding system to decode the coded data based on the displacement vector.

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patent: 4999704 (1991-03-01), Ando
patent: 5315326 (1994-05-01), Sugiyama
patent: 5337086 (1994-08-01), Fujinami

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