Image processing method and apparatus

Details Image processing method and apparatus Image processing method and apparatus

1992-01-30

2000-09-19

Kelley, Christopher S.

Image analysis

Pattern recognition

Template matching

G06K 900

Patent

active

061224014

ABSTRACT:
An image processing method and apparatus in the form of a sampling mask that enables slight image variations to be absorbed and improves the accuracy of image matching based on a comparison of characteristic quantities such as by the template matching method. A multi-dimensional image is divided into regions that overlap each other. The pixels in each of the regions are weighted in accordance with a predetermined function whereby the weighting is largest at the center of a region and decreases as the distance from the center increases. The characteristic sums of the weighted pixel values are extracted as the mask output for absorbing local image variation.

REFERENCES:
patent: 4550437 (1985-10-01), Kobayashi et al.
patent: 4589140 (1986-05-01), Bishop et al.
patent: 4745633 (1988-05-01), Waksman et al.
patent: 4748679 (1988-05-01), Gold et al.
patent: 4805225 (1989-02-01), Clark

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