Optical Haar wavelet for extracting edge features along arbitrary directions

被引：3
|
作者：
Honma, M [1 ]
Nose, T [1 ]
Sato, S [1 ]
机构：
[1] Akita Univ, Dept Elect & Elect Engn, Akita 0108502, Japan
来源：
OPTICAL REVIEW | 2000年 / 7卷 / 01期
关键词：
wavelet transform; Haar wavelet; optical computing; feature extraction; polarization converting device;
D O I：
10.1007/s10043-000-0009-x
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel circular Haar wavelet (CHW), which is obtained by a radially distributed polarization state, is proposed. Optical wavelet transforms using the proposed CHW are implemented by computer simulations. The proposed CHW is shown to have remarkable features: (1) it is useful for detecting outlines of input images; (2) one polarization component is available for extracting an edge feature along a required direction; and (3) unlike the previously proposed CHW (Z. He and S. Sate: Opt. Lett. 19 (1994) 686), this one can be applied to a multi-resolution edge extraction (Y. Sheng, D. Roberge and H. H. Szu: Opt. Eng. 31 (1992) 1840).
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页码：9 / 13
页数：5
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