An active imaging digital image correlation method for deformation measurement insensitive to ambient light
An active imaging digital image correlation method for deformation measurement insensitive to ambient light
复制标题
一种对环境光不敏感的变形测量主动成像数字图像相关方法
DOI：
10.1016/j.optlastec.2011.06.019
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发表时间：
2012-02-01
影响因子：
5
通讯作者：
Xia, Yong
中科院分区：
文献类型：
--
作者：
Pan, Bing;Wu, Dafang;Xia, Yong
在使用普通光学成像设备记录的图像中，变化的环境光可能会导致严重的去相关效应，这阻碍了数字图像相关(DIC)在实验室外的使用。本文描述了一种易于实现且有效的单色照明主动成像DIC方法，以获得适用于高保真变形测量的高质量图像。实验表明，在环境光发生严重变化的情况下，主动成像DIC方法能够提供可靠、准确的测量结果。主动成像DIC方法在实验室和非实验室环境下都有可能开发灵活、健壮的原位变形测量系统，因此应该有更多的潜在工程应用。(C)2011爱思唯尔有限公司。保留所有权利。
Varying ambient light may cause serious decorrelation effect in the images recorded using an ordinary optical imaging device, which prevent digital image correlation (DIC) from out-of-laboratory use. In this paper, we describe an easy-to-implement yet effective monochromatic light illuminated active imaging DIC method for obtaining high-quality images suitable for high fidelity deformation measurement. Experiments reveal that the active imaging DIC method is able to provide reliable and accurate measurements even though the ambient light has been seriously changed. The active imaging DIC method is promising for developing flexible and robust in situ deformation measurement systems for use in both laboratory and non-laboratory environment, and should therefore have more potential engineering applications. (C) 2011 Elsevier Ltd. All rights reserved.