1. Articles from chander p. grover

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    1. Full-field optical coherence tomography and its application to multiple-layer information decoding

      A method of extracting a tomographic image of a layer within a body by optical coherence tomography, involves capturing three images, namely a non-interference background image, a first interference-fringe image of said layer, and a second interference-fringe image phase-shifted relative to the first interference-fringe image. The tomographic image is obtained by mathematically combining the three captured images. In a preferred embodiment random noise is removed by averaging and inter-layer effects are removed by applying a compensation function. This system is then used to extract the 2D cross-sectional images encoded in a multiple-layer information carrier.
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    1. (1 articles) National Research Council Canada
    2. (1 articles) Shoude Chang
    3. (1 articles) Harvard University
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