Television – Image signal processing circuitry specific to television – Motion vector generation
Patent
1997-09-25
1999-11-02
Britton, Howard
Television
Image signal processing circuitry specific to television
Motion vector generation
348402, 348413, 348416, H04N 732
Patent
active
059780487
ABSTRACT:
A current motion vector is encoded based on reference motion vectors. First, the number of valid reference motion vectors is counted. According to the number of the valid reference motion vectors, a predictor for the current motion vector is determined. That is, the predictor is determined with a horizontal and a vertical components representing medians of the horizontal and the vertical components of the valid reference motion vectors, or most precedent components of the horizontal and vertical components of the valid reference motion vectors, or 0's. The current motion vector is encoded based on the predictor by using the differential pulse coding technique and the variable length coding scheme.
REFERENCES:
patent: 5767911 (1998-06-01), Boon
patent: 5805221 (1998-09-01), Lee
patent: 5812787 (1998-09-01), Astle
patent: 5818531 (1998-10-01), Yamaguchi
Britton Howard
Daewoo Electronics Co., Inc.
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