Pattern recognition apparatus

Details Pattern recognition apparatus Pattern recognition apparatus

1992-01-23

1996-10-22

Boudreau, Leo

Image analysis

Pattern recognition

Template matching

382160, G06K 962

Patent

active

055685684

ABSTRACT:
A pattern recognition system is disclosed that uses a predetermined minimal number of comparison pixels in a pattern recognition process for input image recognition. For each pixel within a prescribed frame, a probability of the existence of a reference pattern is calculated by a probability calculation means. These probability values are used by a entropy calculation means to calculate pixel entropy values. Pixels with a high entropy value are then extracted and designated as comparison pixels for the pattern recognition operation. Comparison means compares these comparison pixels with corresponding pixels of an image pattern, and determines which of the reference patterns has a highest probability of being the image pattern.

REFERENCES:
patent: 3539994 (1970-11-01), Clapper
patent: 3588823 (1971-06-01), Chow et al.
patent: 3609686 (1971-09-01), Savory et al.
patent: 3626368 (1971-12-01), Lee
patent: 4599692 (1986-07-01), Tan et al.
patent: 4932065 (1990-07-01), Feldgajer
patent: 5067164 (1991-11-01), Denker et al.

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