Method and apparatus for detecting motion vectors in a frame dec

Details Method and apparatus for detecting motion vectors in a frame dec Method and apparatus for detecting motion vectors in a frame dec

1994-07-18

1995-09-26

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348416, H04N 724, H04N 736

Patent

active

054538017

ABSTRACT:
An improved motion estimating method serves to determine a set of target motion vectors between a current and its previous selected frames, wherein N number of frames are skipped between the current and the previous selected frames, the N being a positive integer inclusive of 1. This method is implemented through the use of all frames, i.e., the current and the previous selected frames and the N number of skipped frames in order to obtain a series of motion vectors for one of the search blocks within the current selected frame. The series of motion vectors is then summed up to define a target motion vector representing the displacement between the one of the search blocks and the corresponding best matching block in the previous selected frame. The process is repeated until the set of target motion vectors for all of the search blocks contained in the current selected frame are detected.

REFERENCES:
patent: 5134464 (1992-07-01), Basile et al.
patent: 5161001 (1992-11-01), Pele et al.
patent: 5173773 (1992-12-01), Ueda et al.
patent: 5191414 (1993-03-01), Sugiyama
patent: 5253054 (1993-10-01), Fujiwara
Min-Kyu Kim, et al, "A Motion Adaptive Hybrid Coding for HDTV Signals" Siganl Processing of HDTV, 3., 6 Sep. 1991, pp. 448-454.

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