Device and method for detecting a motion vector of an image

Details Device and method for detecting a motion vector of an image Device and method for detecting a motion vector of an image

1996-09-13

1998-11-03

Mancuso, Joseph

Image analysis

Applications

Motion or velocity measuring

348416, 382278, G06K 900

Patent

active

058321012

ABSTRACT:
A device and method for detecting a motion vector of an image. The device comprises a horizontal edge extractor, a one-line accumulator, a delay register, a vertical line memory, a sign decision memory, a vertical correlation arithmetic unit, a horizontal edge extractor, a first horizontal line memory, a second horizontal line memory, a comparator, and a horizontal correlation arithmetic unit. Directional edges are used to enhance the accuracy of a motion vector. Since correlation values are calculated as soon as a scan is completed for a field image, it is possible to detect a motion vector at high speed. The device realizes a simple circuit by economizing memory.

REFERENCES:
patent: 4884136 (1989-11-01), Ninomiya et al.
patent: 5111511 (1992-05-01), Ishii et al.
patent: 5157742 (1992-10-01), Niihara
patent: 5172226 (1992-12-01), Morimura et al.
patent: 5184216 (1993-02-01), Kobayashi
patent: 5317685 (1994-05-01), Morimura et al.

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