Method and apparatus for determining a motion vector

Details Method and apparatus for determining a motion vector Method and apparatus for determining a motion vector

1995-06-21

1997-10-28

Couso, Jose L.

Image analysis

Applications

Motion or velocity measuring

382236, 348413, 348416, G06K 936, H04N 712

Patent

active

056824386

ABSTRACT:
In order to detect a motion vector representing a movement of an objective area in a first image of a plurality of successive images, first, a plurality of comparison areas are determined in a second image before or after the first image. Subsequently, a difference total sum between the objective area and each of the comparison areas is obtained with respect to the plurality of comparison areas, thereby obtaining a distribution of the difference total sums. The resultant distribution of the difference total sums is approximately expressed in the form of a predetermined polynomial. By using this polynomial, the position is obtained where the difference total sums become minimum. By treating the resultant position of the area as the position before or after the movement of the objective area, the motion vector representing the movement of the objective area is detected.

REFERENCES:
patent: 5057919 (1991-10-01), De Haan et al.
patent: 5179383 (1993-01-01), Raney et al.
patent: 5355168 (1994-10-01), Sugiyama
patent: 5436674 (1995-07-01), Hirabayashi et al.
patent: 5446806 (1995-08-01), Ran et al.

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