Paper
1 June 1994 Hybrid optical correlator for character recognition
Yansong Chen, Dehuan Li
Author Affiliations +
Abstract
A hybrid character recognition system is described. It is composed to two parts, the feature extractor and the inner- product correlator. Ten Arabic characters from 0 to 9 are tested for their recognition by the system. The experimental results show that all the printing characters are perfectly recognized with rotational invariance of 15 degree(s) angle, and the recognized ratio for hand-writing characters is over sixty percent.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yansong Chen and Dehuan Li "Hybrid optical correlator for character recognition", Proc. SPIE 2238, Hybrid Image and Signal Processing IV, (1 June 1994); https://doi.org/10.1117/12.177728
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KEYWORDS
Image processing

Optical correlators

Optical character recognition

Printing

Binary data

CCD cameras

Critical dimension metrology

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