Method and apparatus for simultaneous matching of displaced imag

Details Method and apparatus for simultaneous matching of displaced imag Method and apparatus for simultaneous matching of displaced imag

1992-07-13

1994-03-29

Moore, David K.

Image analysis

Histogram processing

For setting a threshold

382 48, G06K 900

Patent

active

052992705

ABSTRACT:
A pattern matching apparatus comprises a camera for observing an object to be detected, an image memory for storing data of a plurality of pixels input to the camera as unit date by deviating, or shifting overlapping unit data by one unit pixel in successive addresses, a reference pattern memory for storing data of a plurality of pixels of a reference pattern as unit data in successive addresses, and a matching circuit for simultaneously matching the unit data stored in the image memory to the unit data stored in the reference pattern memory. The unit data of addresses of the image memory are matched to the unit data of corresponding addresses of the reference pattern memory by the matching circuit.

REFERENCES:
patent: 4119946 (1978-10-01), Taylor
patent: 4244029 (1981-01-01), Hogan et al.
patent: 4641350 (1987-02-01), Bunn
patent: 4803734 (1989-02-01), Orishi et al.
patent: 4864629 (1989-09-01), Deering

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