1 January 1987 A New Technique For Pattern Recognition Using VFHF In White-Light Lensless Optical System
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Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967308
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada
Abstract
The advance in pattern recognition is achieved by the uses of Fresnel holographic filter (FHF) and extended source in a lensless correlator 1). This technique gains several advantages such as little effects of a displacement error in the alignment of the FRP and nonsensitivity to changes in scale and rotation of the detected object. In this paper, we present an improved technique by which the optical pattern recognition can be performed with white-light source and a volume Fresnel holographic filter (VFHF) in a lensless intensity correlator. The VFHF serves three functions: phase transformation, reconstructed wavelength selection as well as spatial filtering.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mu Guoguang, Mu Guoguang, Wang Zhaoqi, Wang Zhaoqi, Wang Kemei, Wang Kemei, Wang Xuming, Wang Xuming, } "A New Technique For Pattern Recognition Using VFHF In White-Light Lensless Optical System", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967308; https://doi.org/10.1117/12.967308
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