Television – Bandwidth reduction system – Data rate reduction
Patent
1994-12-07
1998-02-17
Au, Amelia
Television
Bandwidth reduction system
Data rate reduction
348699, H04N 736
Patent
active
057196303
ABSTRACT:
In a moving picture coding device including a memory for storing a referenced picture, a motion vector search device comprises a primary predictive evaluation section and a subsidiary predictive evaluation section. Supplied with an input picture and connected to the memory, the primary predictive evaluation section carries out a primary motion vector search by generating primary predicted pictures using the input picture and the referenced picture to produce primary prediction error evaluated values. Connected to the primary predictive evaluation section, the subsidiary predictive evaluation section carries out a subsidiary motion vector search to estimate at least one subsidiary prediction error evaluated value using the primary prediction error evaluated values. The subsidiary predictive evaluation section therefore carries out the subsidiary motion vector search without generation of subsidiary predicted pictures.
REFERENCES:
patent: 4937666 (1990-06-01), Yang
patent: 5489949 (1996-02-01), Jeong et al.
Telecommunication Standardization Sector Study Group 15, . . . (Raporteur's Group on Part of Q.2/15), in Document AVC-491b, Version 2, Apr., 1993, pp. 1-119.
Au Amelia
NEC Corporation
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