Defect judgement method

Details Defect judgement method Defect judgement method

1992-01-21

1993-12-07

Razavi, Michael T.

Image analysis

Histogram processing

For setting a threshold

358106, 358107, 364564, G06K 900

Patent

active

052689689

ABSTRACT:
A video image is obtained of an object and divided into a matrix of horizontal and vertical zones. The matrix is scanned sequentially and those zones determined to have defects stored. The position of each of the stored zones are determined by the distance horizontally and vertically from a base comprising the zone indicated preceding in the scan.

REFERENCES:
patent: 4700224 (1987-10-01), Miyasaka et al.
patent: 5046115 (1991-09-01), Maruyama et al.

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