Digital sinusoidal fringe pattern generation: Defocusing binary patterns VS focusing sinusoidal patterns
Digital sinusoidal fringe pattern generation: Defocusing binary patterns VS focusing sinusoidal patterns
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DOI：
10.1016/j.optlaseng.2009.12.002
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发表时间：
2010-05-01
影响因子：
4.6
通讯作者：
Zhang, Song
中科院分区：
文献类型：
--
作者：
Lei, Shuangyan;Zhang, Song
用数字光处理（DLP）投影仪产生正弦条纹图的方法有两种：散焦二值条纹图（DBP）和聚焦正弦条纹图（FSP）。本文将比较由以下因素引起的两种方法的潜在误差：（1）离焦程度，（2）曝光时间，（3）同步，（4）投影机的非线性伽玛。实验表明，在大多数情况下，DBP方法的误差小于FSP方法。因此，使用DBP方法生成正弦条纹图像似乎是有吸引力的。(C)2009爱思唯尔有限公司保留所有权利。
There are two approaches to generate sinusoidal fringe patterns with a digital-light-processing (DLP) projector: defocusing binary patterns (DBP), and focusing sinusoidal patterns (FSP). This paper will compare the potential errors for both methods induced by the following factors: (1) degree of defocusing, (2) exposure time, (3) synchronization, and (4) projector's nonlinear gamma. Experiments show that in most scenarios, the error for the DBP method is smaller than that of the FSP method. Therefore, generating a sinusoidal fringe image using a DBP method seems to be appealing. (C) 2009 Elsevier Ltd. All rights reserved.