Recognition method and apparatus

Details Recognition method and apparatus Recognition method and apparatus

1981-06-10

1984-05-22

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

356375, 356399, 358101, 364490, 382 25, 382 44, 382 48, G06K 932

Patent

active

044505795

ABSTRACT:
A recognition apparatus comprising an image sensor sensing an image of a pad pattern on an IC chip pattern, a pre-treatment circuit for converting the outputs of the image sensor into binary-coded signals in accordance with at least two slice levels, and a pattern detecting section for detecting the position and inclination of the pad pattern based on the images of the pad and chip patterns corresponding to the data stored in a memory; that is, the binary-coded signals generated in accordance with two slice levels. Two image sensors may be used for sensing the chip and pad data respectively.

REFERENCES:
patent: 3711831 (1973-01-01), Kaneko et al.
patent: 3898617 (1975-08-01), Kashioka et al.
patent: 3899634 (1975-08-01), Montone et al.
patent: 4021778 (1977-05-01), Ueda et al.
patent: 4163212 (1979-07-01), Buerger et al.
patent: 4213117 (1980-07-01), Kembo et al.
patent: 4233625 (1980-11-01), Altman
patent: 4238780 (1980-12-01), Doemens
patent: 4334241 (1982-06-01), Kashioka et al.
patent: 4352125 (1982-09-01), Guth

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