基于光纹特征的激光主动照明图像去模糊

王灿进; 石宁宁; 孙涛; 王锐

doi:10.3788/OPE.20162405.1159

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基于光纹特征的激光主动照明图像去模糊

信息科学 | 更新时间：2020-08-13

- 基于光纹特征的激光主动照明图像去模糊
- Image deblurring for laser active illumination based on light vein features
- 光学精密工程 2016年24卷第5期页码：1159-1167
- 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宇航智能控制国家重点实验室北京,100039
- 作者简介：
- 基金信息：
  
  长春市科技计划资助项目(No.2013270)()
- DOI：10.3788/OPE.20162405.1159
  中图分类号： TP391;TN957.52
- 收稿日期：2015-06-30，
  
  修回日期：2015-08-28，
  
  纸质出版日期：2016-05-25
- 稿件说明：
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王灿进, 石宁宁, 孙涛等. 基于光纹特征的激光主动照明图像去模糊[J]. 光学精密工程, 2016,24(5): 1159-1167

WANG Can-Jin, SHI Ning-ning, SUN Tao etc. Image deblurring for laser active illumination based on light vein features[J]. Editorial Office of Optics and Precision Engineering, 2016,24(5): 1159-1167
王灿进, 石宁宁, 孙涛等. 基于光纹特征的激光主动照明图像去模糊[J]. 光学精密工程, 2016,24(5): 1159-1167 DOI： 10.3788/OPE.20162405.1159.

WANG Can-Jin, SHI Ning-ning, SUN Tao etc. Image deblurring for laser active illumination based on light vein features[J]. Editorial Office of Optics and Precision Engineering, 2016,24(5): 1159-1167 DOI： 10.3788/OPE.20162405.1159.

摘要

受光学系统离焦、大气扰动、平台振动的影响

激光主动照明系统捕获的图像容易被模糊

而传统的去模糊方法难以取得良好的复原效果

故本文提出基于光纹特征的盲解卷积复原方法来实现图像去模糊。首先将模糊图像降采样

建立尺度金字塔

在尺度空间查找光纹特征图像块。随后基于激光主动照明图像饱和像素较多的特点

提出新的图像退化模型。最后针对模糊核估计、光纹参数更新、清晰图像复原3个步骤

提出适用的能量函数

迭代复原出无噪清晰图像。搭建了主动照明系统

在捕获的激光主动照明图像上进行了实验

并与现有方法进行了对比。结果表明:本文方法不仅能够复原出清晰图像

而且能有效抑制振铃效应

其客观评价指标峰值信噪比(PSNR)优于已有的其他算法。

Abstract

The images captured by a laser active illumination system are easily blurred by optical system defocus

atmospheric disturbance and platform vibration

and traditional deblurring methods can not achieve good image restoration. Therefore

this paper proposes a blind deconvolution restoration method based on light vein features to implement the image deblurring. Firstly

the blurred images were down-sampled

a scale pyramid was established

and the light vein patches were searched along a scale space. Then

according to the laser illumination imaging characterized by more saturated pixels

a new nonlinear image degradation model was proposed. Finally

to implement the three steps

blurred kernel estimation

light vein patch renewal and the image restoration

the proper energy function was proposed and the latent image without noise was iterated and recovered. A laser active illumination system was established and the experiments were performed on the images captured by the system and compared with state-of-art deblurred methods

The experiment results indicate that the proposed method not only obtains more clear images

but also availably suppresses ringing artifacts

and its Peak Signal to Noise Ratio (PSNR) is superior to that of other algorithms.

关键词

Keywords

references

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杨亚威,李俊山,张士杰,等. 基于视觉对比敏感度与恰可察觉失真感知的图像复原[J]. 光学精密工程, 2014, 22(2):459-466. YANG Y W, LI J SH, ZHANG SH J, et al.. Image restoration based on visual contrast sensitivity and just noticeable distortion perception[J]. Opt. Precision Eng., 2014, 22(2):459-466. (in Chinese)

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