Abstract
Fringe pattern analysis is widely used in moire, holographic and speckle interferometry for solving problems of nondestructive testing of objects. In the paper, the method of analysis of noisy fringe patterns and fringe phase retrieval is considered. The method is based on iterative evaluation of fringe amplitude, local fringe step (frequency) and local fringe orientation. High noise-immunity of the method proposed was verified experimentally when processing complicated fringe patterns with recovering full fringe phase.
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