Small-object location utilizing centroid accumulation

Details Small-object location utilizing centroid accumulation Small-object location utilizing centroid accumulation

1982-03-29

1985-02-12

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

364554, 382 27, 382 48, 382 54, G06K 952

Patent

active

044995970

ABSTRACT:
In the disclosed image-analysis scheme, a processing window of M by N pixels is successively scanned in single-pixel steps over a sensed image, with the centroid of the image data contained in each window position then being determined. When a pixel-by-pixel tabulation is made of the number of times each pixel has been determined to be the windowed-data centroid, those pixels having the higher tabulated centroid counts will tend to be the intra-image locations of any objects which are smaller than about M/2 by N/2 pixels.

REFERENCES:
patent: 3274549 (1966-09-01), Moskowitz
patent: 3292148 (1966-12-01), Giuliano et al.
patent: 4398256 (1983-08-01), Nussmeier et al.

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