Quiroga J A, González-Cano A
Departamento de Optica, Facultad de Ciencias Físicas, Universidad Complutense Cuidad Universitaria syn, 28040 Madrid, Spain.
Appl Opt. 2000 Jun 10;39(17):2931-40. doi: 10.1364/ao.39.002931.
We present the application of a regularization algorithm to the processing of photoelastic fringe patterns. The method used is a modified regularized phase-tracking (RPT) algorithm applied to phase-shifted images. In particular, we present an algorithm for isoclinic-isochromatic separation that uses only five images. In the case of isoclinics the method can deal with problems associated with modulation of isochromatics and with isotropic points by means of a modified cost functional. With respect to the isochromatics the problems associated with regions of high fringe density are solved in a robust way by the unmodified RPT algorithm by use of the modulation information. The performance of the method is discussed, and experimental results are presented.
我们介绍了一种正则化算法在光弹性条纹图案处理中的应用。所使用的方法是应用于相移图像的改进型正则化相位跟踪（RPT）算法。特别是，我们提出了一种仅使用五幅图像的等倾线 - 等色线分离算法。在等倾线的情况下，该方法可以通过修改后的代价函数处理与等色线调制和各向同性点相关的问题。对于等色线，未修改的RPT算法通过使用调制信息以稳健的方式解决了与高条纹密度区域相关的问题。讨论了该方法的性能，并给出了实验结果。
