散射介质对多波长彩色物体关联成像的影响  

Effect of Scattering Medium on Multi-Wavelength Color Object Correlated Imaging

作　　者：周成[1,2,3] 刘兵[1,2] 黄贺艳 宋立军[1,2] 

机构地区：[1]长春大学理学院,吉林长春130022 [2]长春大学材料设计与量子模拟吉林省高校重点实验室,吉林长春130022 [3]长春理工大学理学院,吉林长春130022

出　　处：《激光与光电子学进展》2016年第10期97-102,共6页Laser & Optoelectronics Progress

基　　金：吉林省科技发展计划项目(20130521016JH;20140101187JC);长春市科技发展计划项目(2014217)

摘　　要：利用单路计算式关联成像技术,实现了光路中存在散射介质情况下彩色目标物体的图像恢复,研究了多波长彩色成像与全光谱白光成像随散射介质浓度的变化关系。实验结果表明:在采样次数3000次情况下,当散射介质浓度增加至6%时,多波长彩色成像的图像可见度由0.21下降至0.061,衬噪比由1.21降至0.33,成像质量随散射介质浓度的增加而降低。但散射介质浓度对全光谱白光成像的质量却影响较小,相同条件下,可见度为0.20.衬噪比为1.061。讨论了散射介质浓度与彩色物体关联成像质量之间的关系,对促进关联成像技术的实用化具有重要意义。The relationship of the multi-wavelength color imaging and full spectrum white light imaging versus the scattering medium concentration is studied by utilizing the single-beam correlated imaging technology, and the image restoration of color target objects is realized under the condition of scattering medium in the optical path. Experimental results demonstrate that under the condition of 3000 sampling number the imaging quality decreases with the increase of the scattering medium concentration. When the scattering medium concentration increases to 6%, the visibility of the multi-wavelength color image decreases from 0.21 to 0. 061 and the contrast-to-noise ratio decreases accordingly from 1.21 to 0.33. But for the full spectrum white light imaging, the scattering medium concentration has little effect. In the same case, the visibility and CNR are 0.20 and 1. 061, respectively. The relationship between the scattering medium concentration and the imaging quality of the color object correlated imaging is discussed in detail, which is crucial to the practicality of the correlated imaging.

关 键 词：成像系统 关联成像 散射介质 多波长成像 

分 类 号：O438[机械工程—光学工程]