Pattern data processing method and apparatus to practice...

Details Pattern data processing method and apparatus to practice... Pattern data processing method and apparatus to practice...

G - Physics

06

K

354/57

G06K 9/00 (2006.01) G06K 9/52 (2006.01)

Patent

CA 1123956

ABSTRACT OF THE DISCLOSURE A screen is formed of a plurality of picture elements arranged in horizontal and vertical direction. The screen is consecutively scanned by a photo sensor while a pattern to be recognized is projected onto the screen, or is placed therein. The screen is divided into small picture frames containing at least two each horizontal and vertical neighboring picture elements which total a minimum of 2 x 2 = 4 picture elements. The output of the photo sensor is supplied to a delay means which is controlled so that the data of the plurality of small picture frames is obtained, and then processed for segregation by difference of type so that the peculiar data corresponding to the pattern projected or placed onto the screen is obtained.

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