Scan-in polygonal extraction of video images

Image analysis – Histogram processing – For setting a threshold

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358 75, 358318, 382 21, 382 60, G06K 948

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052147185

ABSTRACT:
A video image is extracted and stored as a geometric figure by generating a binary pixel map of the image. The binary pixel map contains one bit for each pixel in the image, representative of the value of a characteristic feature of that pixel relative to a threshold range. A crack following algorithm locates the border of a group of contiguous pixels all having the same binary value. This border defines the boundaries of the scanned image. It is smoothed by a recursive adaption technique to generate one or more polygons related to the shape of the image.

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