激光与光电子学进展, 2020, 57 (24): 241015, 网络出版: 2020-12-02
散斑成像中散斑旋转去相关角的影响因素 
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Factors Influencing Speckle-Rotation Decorrelation Angle in Speckle Imaging
图 & 表
图 1. 散斑旋转实验原理图。(a)基于记忆效应的透过散射介质层的成像系统示意图;(b)散斑旋转示意图
Fig. 1. Schematic of speckle-rotation experiment principle. (a) Schematic of imaging system based on memory-effect through scattering layer; (b) schematic of speckle-rotation
图 4. 散斑面积对散斑旋转去相关角的影响。(a)不同散斑面积下散斑相关随旋转角的变化;(b)散斑旋转去相关角随散斑面积的变化;(c)不同散斑面积对应的散斑旋转示意图
Fig. 4. Effect of speckle area on speckle-rotation decorrelation angle. (a) Correlation of speckles varying with rotation angle under different speckle areas; (b) speckle-rotation decorrelation angle varying with speckle area; (c) schematic of speckle-rotation corresponding to different speckle areas
图 5. 散射介质到探测器的距离对散斑旋转去相关角的影响。(a)不同距离下散斑相关随旋转角的变化;(b)散斑旋转去相关角随距离的变化;(c)不同距离下探测散斑的原理示意图及对应散斑
Fig. 5. Effect of distance between camera and diffuser on speckle-rotation decorrelation angle. (a) Correlation of speckles varying with rotation angle under different distances; (b) speckle-rotation decorrelation angle varying with distance; (c) schematic of speckle detection principle at different distances and corresponding speckle
图 6. 横向平移探测器对散斑旋转去相关角的影响。(a)不同横向探测位置下散斑相关随旋转角的变化;(b)散斑旋转去相关角随横向位置的变化
Fig. 6. Effect of lateral displacement of camera on speckle-rotation decorrelation angle. (a) Correlation of speckles varying with rotation angle under different detection positions; (b) speckle-rotation decorrelation angle varying with lateral displacement
佘明, 施瑶瑶. 散斑成像中散斑旋转去相关角的影响因素[J]. 激光与光电子学进展, 2020, 57(24): 241015. Ming She, Yaoyao Shi. Factors Influencing Speckle-Rotation Decorrelation Angle in Speckle Imaging[J]. Laser & Optoelectronics Progress, 2020, 57(24): 241015.
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