Accurate Displacement Measurement for Landslide Prediction by Sampling Moiré Method
Sampling moiré method is useful to measure shape, displacement and strain distributions of multi-functional materials and structures. When a specimen grating pattern on an object is recorded by a digital camera, a moiré fringe pattern is obtained by sampling the digitized grating image with a constant pixel pitch. The method can analyze phase values from one image of a grating pattern. By using this sampling moiré method, the displacement measurement of land is analyzed to develop a landslide prediction system. The theory and the application for measuring the displacement of land are shown in this paper.
Yansheng Yin and Xin Wang
Y. Morimoto et al., "Accurate Displacement Measurement for Landslide Prediction by Sampling Moiré Method", Advanced Materials Research, Vols. 79-82, pp. 1731-1734, 2009