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Proceedings Paper

Computer-generated hologram for rotation-invariant pattern recognition
Author(s): Ching-Piao Hu; Smile Yeh
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Paper Abstract

A traditional MSF only possesses the discriminating ability of shift invariance of patterns when it is used for pattern recognition and can't recognize patterns with rotation. To overcome this problem, a target pattern was replaced by one of its circular harmonic components when we select the reference pattern, i.e., the MSF should be made from the conjugate of the Fourier spectrum of its circular harmonic components.

Paper Details

Date Published: 1 May 1990
PDF: 7 pages
Proc. SPIE 1211, Computer and Optically Formed Holographic Optics, (1 May 1990); doi: 10.1117/12.17943
Show Author Affiliations
Ching-Piao Hu, National Taiwan Univ. (Taiwan)
Smile Yeh, National Taiwan Univ. (Taiwan)

Published in SPIE Proceedings Vol. 1211:
Computer and Optically Formed Holographic Optics
Ivan Cindrich; Sing H. Lee, Editor(s)

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