同态非局部滤波在激光主动成像散斑抑制中的应用研究

王灿进; 石宁宁; 孙涛

doi:10.3788/YJYXS20163102.0193

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同态非局部滤波在激光主动成像散斑抑制中的应用研究

显示与图像 | 更新时间：2020-08-12

- 同态非局部滤波在激光主动成像散斑抑制中的应用研究
- Application of homomorphic non-local filters in speckle noise suppression for laser active imaging
- 液晶与显示 2016年31卷第2期页码：193-200
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室,吉林长春,130033
  2. 北京航天自动控制研究所北京,100049
- 作者简介：
- 基金信息：
  
  吉林省科技发展计划(No.20126015)()
- DOI：10.3788/YJYXS20163102.0193
  中图分类号： TN957.52;TP391.4
- 收稿日期：2015-03-24，
  
  修回日期：2015-05-18，
  
  网络出版日期：2015-05-18，
  
  纸质出版日期：2016-02-05
- 稿件说明：
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王灿进, 石宁宁, 孙涛. 同态非局部滤波在激光主动成像散斑抑制中的应用研究[J]. 液晶与显示, 2016,31(2): 193-200

WANG Can-jin, SHI Ning-ning, SUN Tao. Application of homomorphic non-local filters in speckle noise suppression for laser active imaging[J]. , 2016,31(2): 193-200
王灿进, 石宁宁, 孙涛. 同态非局部滤波在激光主动成像散斑抑制中的应用研究[J]. 液晶与显示, 2016,31(2): 193-200 DOI： 10.3788/YJYXS20163102.0193.

WANG Can-jin, SHI Ning-ning, SUN Tao. Application of homomorphic non-local filters in speckle noise suppression for laser active imaging[J]. , 2016,31(2): 193-200 DOI： 10.3788/YJYXS20163102.0193.

摘要

传统的激光主动成像散斑抑制方法中

局部单像素滤波和变换域滤波难以取得良好的抑制效果

同时容易导致边缘展宽

对图像信息造成破坏。鉴于非局部滤波对加性噪声的优异去噪性能

本文研究了三种具有代表性的非局部滤波方法

并使用半导体泵浦固体脉冲激光器搭建主动成像系统

进行散斑噪声抑制性能的比较。实验表明

采用同态FM-PatchGP不仅能够有效抑制散斑噪声

而且能很好地保持边缘信息

同时满足实时性处理的要求

在激光主动照明系统中具有良好的应用前景。

Abstract

Its difficult for traditional speckle suppression methods such as local single pixel filters and transform -domain filters to obtain good suppression effects in laser active imaging. Meanwhile

these methods would broaden edges

so as to damage the information of the image. In view of the excellent suppression performance of non-local filters for additive noise

three representative nonlocal filtering methods are introduced into laser active imaging. An active imaging system was built up to compare the performance of these three methods in speckle noise suppression using a diode-pumped solid-state pulsed laser. Experimental results indicated that homomorphic FM-PatchGP can not only suppress speckle noise effectively

but also preserve edge information while satisfies the real-time requirement

which leads to a good application prospect in laser active lighting systems.

关键词

Keywords

references

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