Multichannel wavelet correlators by the use of associative storage in a photorefractive material

被引：17
|
作者：
Feng, WY [1 ]
Huang, GG [1 ]
Yan, YB [1 ]
Jin, GF [1 ]
Wu, MX [1 ]
机构：
[1] Tsing Hua Univ, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
来源：
PHOTOREFRACTIVE MATERIALS: PHENOMENA AND RELATED APPLICATIONS II | 1998年 / 3554卷
关键词：
volume holographic storage; optical wavelet transform; multichannel correlation; fingerprint identification;
D O I：
10.1117/12.318115
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The theory of wavelet correlation and the associative characteristic of volume holographic storage in a photorefractive crystal were introduced to construct a novel multichannel wavelet correlator. With a spherical wave as the reference beam, the system was more compact and easy to be miniaturized and utilized. It's application in fingerprint identification was studied, and experimental results were given.
引用
收藏
页码：149 / 154
页数：6
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