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Appl Opt. 1992 May 10;31(14):2550-3. doi: 10.1364/AO.31.002550.

Three-dimensional image realization in interference microscopy.


We describe an efficient algorithm based on the Hilbert transform for reconstructing cross-sectional or three-dimensional images from the input images acquired by an interference microscope. First the design of this filter is presented, and cross-sectional images of an integrated circuit constructed with this algorithm are demonstrated. It is shown that this Hilbert transform algorithm can be easily implemented with a low-cost frame grabber so that the computation time required for image reconstruction is drastically reduced.

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