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《Laser & Optoelectronics Progress》 2015-09
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Improved Three-Step Spatial Quasi-Phase-Shifting Technique for Single-Frame Fringe Analysis

Ma Xiao;Zhang Zibang;Zhong Jingang;Department of Optoelectronic Engineering, Jinan University;Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes;  
Three- step spatial quasi- phase- shifting technique is able to demodulate the phase from a single frame of fringe pattern. This technique is suitable for dynamic fringe analysis. An improved three- step spatial quasi- phase- shifting technique is presented in this paper. According to actual situation, the number of pixels and the size of neighborhood are able to be tuned arbitrarily to calculate the phase of each pixel. It is conducive to the noise isolation, the error-propagation prevention, and the accuracy improvement in phase demodulation for dynamic fringe analysis.
【Fund】: 国家自然科学基金(61475064 41206081);; 广东省科技计划项目(2013B060100001)
【CateGory Index】: TN911.3
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