A simple phase unwrapping approach based on filtering by windowed Fourier transform: The phase near edges |
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| Authors: | Qian Kemao |
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| Institution: | aSchool of Computer Engineering, Nanyang Technological University, Singapore 639798, Singapore |
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| Abstract: | A simple phase unwrapping approach based on windowed Fourier filtering (WFF) was proposed recently. In this paper, the effects of the WFF on edges are further investigated, which show that the phase near an edge remains unchanged and no special consideration is needed for the edges. This useful property will be theoretically proven and numerically verified. |
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| Keywords: | Phase unwrapping Windowed Fourier transform Edge effects |
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