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双相机相位差异散斑成像技术
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Phase-diverse speckle imaging with two cameras

摘    要
开展了用相位差异散斑技术实现图像采集和图像恢复的实验,在实验室环境下设计了针对扩展目标的相位差异散斑成像双相机实验平台。用两台外触发模式的相机同步采集焦面和指定离焦面上的短曝光图像,用变形镜构造光学系统误差,用强力热吹风机模拟大气湍流。分析了用多台相机与单台相机相比引入的不同问题,给出了多通道之间相面旋转问题的处理方法和多通道之间读出噪声不一致时的相位差异散斑法的目标函数;验证了相位差异散斑法提高图像分辨率的能力。分别用采集到的单帧,3帧,10帧图像进行PDS运算并分析结果,与基本的相位差异法相比,多帧相位差异散斑成像所恢复的图像质量有很大的提高。
标    签 相位差异   散斑成像   波前探测   图像恢复   相位估计   Phase-diverse Speckle(PDS)   wave-front aberration   image restoration   phase estimation  
 
Abstract
Image capaturing and image restoration implentmented by Phase-diverse Speckle(PDS) were researched in this paper.A PDS experimental platform with two cameras was designed for the extended object in our lab. Two cameras were taken to capture the short-expose images in focus and defocus simultaneously and a deformable mirror was used to construct optics system error.Then an electrical dryer was used to simulate the atmosphere turbulence. The problems from the two cameras were compared with that from single camera. Furthermore, the PD destination function was derived when the two cameras have different readout noises and how to solve the image rotation between the multi-channels was given. Finally, the capability of PDS method for image resolution improvement was validated. The PDS processes by single frame, 3 frames and 10 frames were execussed, respectively, and results show that the PDS technique can generate images with highly improved quality compared with the traditional PD method.

中图分类号 TP391.4 O436.   DOI 10.3788/ope.20111906.1384

 
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所属栏目 双相机相位差异散斑成像技术

基金项目 国家863高技术研究发展计划资助项目(No.2009AA8080603)

收稿日期 2010/10/12

修改稿日期 2010/10/29

网络出版日期

作者单位点击查看


备注王斌(1980-),男,吉林省吉林市人,助理研究员, 2003年于长春光机学院获得学士学位,2006年于西安电子科技大学获得硕士学位,主要从事信息光学、数值分析、数学最优化以及图像处理与恢复等方面的研究。

引用该论文: WANG Bin,WANG Zong-yang,WANG Jian-li,ZHAO Jin-yu,WU Yuan-hao,ZHANG Shi-xue,DONG Lei,WEN Ming. Phase-diverse speckle imaging with two cameras[J]. Optics and Precision Engineering, 2011, 19(6): 1384~1390
王斌,汪宗洋,王建立,赵金宇,吴元昊,张世学,董磊,文明. 双相机相位差异散斑成像技术[J]. 光学 精密工程, 2011, 19(6): 1384~1390


被引情况:


【1】程强,闫锋,薛栋林,郑立功,张学军, "利用相位差异技术检测离轴三反光学系统的波前误差",中国激光 39, 1008001--1(2012)

【2】赵金宇,陈占芳,王斌,汪宗洋,张楠,王建立,吴元昊,张世学, "相位差异法目标函数的并行化改造",光学 精密工程 20, 431-438(2012)

【3】汪宗洋,王斌,吴元昊,孟浩然,刘欣悦,林旭东, "利用相位差异技术校准非共光路静态像差",光学学报 32, 701007--1(2012)

【4】赵金宇,吴元昊,贾建禄,乔兵,王斌,汪宗洋,马鑫雪, "基于实时波前信息的图像复原",光学 精密工程 20, 1350-1356(2012)

【5】王斌,汪宗洋,吴元昊,马鑫雪,卫沛锋,王建立,吕杰, "利用多通道相位差异波前探测法检测自适应光学系统非共光路像差",光学 精密工程 21, 1683-1692(2013)

【6】马鑫雪,王斌,李正炜, "相位差异法检测不理想环境下的非共光路像差",光学 精密工程 22, 3175-3182(2014)

【7】董志伟,郑立威,范国祥,樊荣伟,叶光超,陈德应,魏源, "回波信噪比对激光雷达测绘精度的影响",光学学报 34, 228002--1(2014)

【8】马鑫雪,王建立,王斌,汪宗洋, "相位恢复波前传感器测量精度的定量分析",光学学报 33, 1028001--1(2013)

【9】王锐,王挺峰,孙涛, "任意厚度随机相位屏激光大气传输特性仿真模型",中国激光 40, 813001--1(2013)



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