Analysis of laser speckle severity, granularity, and anisotropy using the power spectral density in polar-coordinate representation

被引：9
|
作者：
Ong, Desmond C. [1 ]
Solanki, Sanjeev [1 ]
Liang, Xinan [1 ]
Xu, Xuewu [1 ]
机构：
[1] ASTAR, Data Storage Inst, Singapore 117608, Singapore
来源：
OPTICAL ENGINEERING | 2012年 / 51卷 / 05期
关键词：
speckle analysis; power spectral density; laser display; holographic display; REDUCTION; OBJECTS;
D O I：
10.1117/1.OE.51.5.054301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The conventional speckle contrast measures only speckle severity, and is unable to characterize granularity and anisotropy in displayed images, which are easily picked up by human observers. Here, we propose a comprehensive method based on the power spectral density which allows the simultaneous measurement of three components of laser speckle-severity, granularity and anisotropy-as a superior way to evaluate both speckle and speckle reduction techniques. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.5.054301]
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页数：7
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