Generalized three-dimensional windowed Fourier transform for fringe analysis |
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| Authors: | Qian Kemao Fu Yu Liu Qi Seah Hock Soon Asundi Anand |
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| Institution: | School of Computer Engineering, Nanyang Technological University, Singapore. mkmqian@ntu.edu.sg |
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| Abstract: | A 3D windowed Fourier transform is proposed for fringe sequence analysis, which processes the joint spatial and temporal information of the fringe sequence simultaneously. The 2D windowed Fourier transform in the spatial domain and the 1D windowed Fourier transform in the temporal domain are two special cases of the proposed method. The principles of windowed Fourier filtering and windowed Fourier ridges are developed. Experimental verification shows encouraging results despite a longer processing time. |
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