| Autor: |
Masayasu Nakazawa, Kiyotaka Tanaka, Shun ichi Kamemaru |
| Rok vydání: |
1995 |
| Předmět: |
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| Zdroj: |
Optical Implementation of Information Processing. |
| ISSN: |
0277-786X |
| Popis: |
In most pattern recognition systems, many target patterns should be recognized at one time by fewer reference patterns when the system uses a matched spatial filter. In this paper, two approaches are described for reducing the number of reference patterns in matched spatial filtering called universal pattern recognition which means a recognition technique of various shapes of patterns not depending on a target shapes. One approach is based on very simple bar patterns for the reference object for a matched filter according to a concept that every pattern or symbol is synthesized by many line components with various directions. By also using correlation diagrams with such reference patterns, 26 English alphabets were fairly recognized. Another technique is based on the algorithm to find automatically the unique and proper reference patterns of the matched spatial filter for recognition of the desired target sets. By the algorithm, unique and minimum numbers of reference patterns are selected and 26 English alphabets and 10 digits were recognized.© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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