Method and apparatus for detecting motion vectors

Details Method and apparatus for detecting motion vectors Method and apparatus for detecting motion vectors

1993-06-08

1994-07-05

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348699, H04N 7133, H04N 7137

Patent

active

053272323

ABSTRACT:
Motion vectors are obtained, using a known block matching technique which is based on a block-by-block processing between a current and a preceding frames. Whenever an equivalent value to the minimum absolute value of difference which has the earliest priority is found during the block matching, the closer of the two vectors derived therefrom to a predetermined motion vector is chosen. The closest vector which has survived the process of matching the search block from the current frame against its corresponding search region in the preceding frame is assigned as the motion vector of the given block and stored in a vector memory as a predetermined motion vector to repeat the search process for a subsequent block in the current frame.

REFERENCES:
patent: 4992870 (1991-02-01), Samad
patent: 5173771 (1992-12-01), Kitazato
patent: 5200820 (1993-04-01), Gharavi
patent: 5210605 (1993-05-01), Zaccarin et al.

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