Method of and device for estimating motion in an image

Details Method of and device for estimating motion in an image Method of and device for estimating motion in an image

1993-09-21

1994-12-20

Kostak, Victor R.

Television

Format conversion

Line doublers type

348702, H04N 701

Patent

active

053749596

ABSTRACT:
For obtaining motion information by using a conventional motion estimator, a composite signal obtained from both the luminance signal and the chrominance signal is applied to this motion estimator. Based on the signals (Cb, Cr) of the two chrominance components (U, V), the contour of the colored elements of the image is extracted by means of Sobel filters (9, 10), i.e. high-pass two-dimensional filters, and the output signals of these filters are added to the luminance signal (2) in an adder (14), the resultant signal (3) being applied to the motion estimator.

REFERENCES:
patent: 4651211 (1987-03-01), Wackenbrock et al.
patent: 4811092 (1989-03-01), Achiha et al.
patent: 5047849 (1991-09-01), Hara
patent: 5103295 (1992-04-01), Uwabata et al.
patent: 5257102 (1993-10-01), Wilkinson

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