Effect of input image size and elastic factor on 2D Morlet wavelet transform

SHI Wei-hua; SONG Yi-zhang; CHEN He-ming

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Effect of input image size and elastic factor on 2D Morlet wavelet transform

更新时间：2020-08-12

- Effect of input image size and elastic factor on 2D Morlet wavelet transform
- Optics and Precision Engineering Vol. 11, Issue 5, Pages: 531-536(2003)
- 作者机构：
  
  1. 南京邮电学院, 光信息技术系,江苏南京,210003
  2. 北京信威公司, 深圳研究所,广东深圳,518067
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391.41
- Received：09 April 2003，
  
  Revised：25 July 2003，
  
  Published Online：15 October 2003，
  
  Published：15 October 2003
- 稿件说明：
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施伟华, 宋义章, 陈鹤鸣. 输入图像尺寸和伸缩因子对二维Morlet子波变换的影响[J]. 光学精密工程, 2003,(5): 531-536

SHI Wei-hua, SONG Yi-zhang, CHEN He-ming. Effect of input image size and elastic factor on 2D Morlet wavelet transform[J]. Editorial Office of Optics and Precision Engineering, 2003,(5): 531-536
施伟华, 宋义章, 陈鹤鸣. 输入图像尺寸和伸缩因子对二维Morlet子波变换的影响[J]. 光学精密工程, 2003,(5): 531-536 DOI：

SHI Wei-hua, SONG Yi-zhang, CHEN He-ming. Effect of input image size and elastic factor on 2D Morlet wavelet transform[J]. Editorial Office of Optics and Precision Engineering, 2003,(5): 531-536 DOI：

摘要

简述了二维光学子波变换理论

用计算机模拟方法研究了伸缩因子对子波变换的影响

发现伸缩因子过大会使变换后的图像的边缘变模糊。得出了合适的伸缩因子值

用计算机模拟和光学实现方法研究了输入图像尺寸对子波变换的影响

实验结果与计算机模拟相一致

认为合适的输入图像尺寸应保证输入图像的频谱范围与子波匹配滤波器的频谱范围相一致

才能使二维Morlet子波变换提取清晰的图像边缘特征。

Abstract

For a given size of 2D Morlet wavelet matched filter

both input image size and elastic factor have significant effect on experimental results. The study of the effect of elastic factor on wavelet transform through computer simulation shows that an excessively large elastic factor blurs the edge of transformed image

and the study of the effect of input image size on wavelet transform through computer simulation and optical means shows that experimental results are in agreement with results of computer simulation

and 2D Morlet wavelet transform can extract clear image edge features only when a suitable input image size is chosen to ensure that the frequency spectrum of input image is in agreement with the frequency spectrum of wavelet matched filter.

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references

RIOUL O, VETTERLI M. Wavelets and signal processing[J]. IEEE Signal Proc Mag,1991,8(4):14-38.

吴晓波. 图像边缘特征分析[J].光学精密工程,1999,7(1):59-63.WU X B. Analysing of the characteristic of image edge[J].Optics and Precision Engineering,1999,7(1):59-63.(in Chinese)

MENDLOVIC D. Two-dimensional wavelet transform achieved by computer-generated multireference matched filter and dammann grating[J].Appl Opt,1995,34(12):8213-8219.

DAUGMAN J. Complete discrete 2-D Gabor transforms by neural networks for image analysis and compression[J].IEEE Trans Acoust Speech Signal Process,1988, 36(11): 1169-1179.

SZU H,CAULFIELD H J. Special section on wavelet transforms [J].Opt Eng, 1992, 31(9):1823-1916.

李正东.利用子波变换进行目标识别的方法研究[J].光学精密工程,2001,3:216-219.LI ZH D.Method of target recognition by wavelet transform[J].Optics and Precision Engineering,2001,3:216-219.(in Chinese)

SZU H,CAULFIELD H J.Wavelet transform[J]. Opt Eng, 1991, 31(9):1823-1824

XU J Y. Use of wavelet transform in image edge extraction[J].SPIE,1998,3391:596-601.

康辉.应用光折射全息匹配滤波器实现光学子波变换[J].中国激光,1996,23(8):741-744.KANG H. Optical wavelet transform with photorefractive holographic matched filtering[J]. Chinese Journal of Lasers,1996,23(8):741-744.(in Chinese)

倪明.光学子波变换的改进[J].中国激光,1997,A24(3):231-236.NI M. Improvement of an optical wavelet transform[J]. Chinese Journal of Lasers,1997,A24(3):231-236.(in Chinese)

陈鹤鸣,贾小兵,施伟华.应用计算全息制作的子波匹配滤波器实现光学子波变换的研究[J].光学学报,1998,18(8):1087-1090.CHEN H M, JIA X B , SHI W H.Optical wavelet transform using computer-generated wavelet matched filter[J]. Acta Optica Sinica,1998,18(8):1087-1090.(in Chinese)

陈鹤鸣,施伟华,贾小兵.用计算全息制作改进的Mexican-hat子波匹配滤波器实现二维光学子波变换[J].中国激光,1999,26(5):420-424.CHEN H M,SHI W H,JIA X B. Optical improved Mexican-hat wavelet transform using computer-generated wavelet matched filter[J]. Chinese Journal of Lasers,1999,26(5):420-424.(in Chinese)

YUN L S. Optical wavelet transform[J]. Optical Engineering, 1992(9): 1840-1845.

OUZIELI I,MENDLOVIC D.Two-dimensional wavelet processor[J].Appl Opt,1996,35(29): 5839-5846.

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