Optical correlator optimized for medical applications

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A compact optical correlator that can retrieve shape, color, and texture information was improved and optimized for medical applications. Some optical components of the optical correlator were changed to eliminate stray light. Tumor and normal cell images from rats can be clearly distinguished by using their color and luminance information. Here, the color and luminance data from the cell images were converted into two-dimensional patterns on the x-y chromaticity diagram and the luminance histogram, respectively. The tumor cell images were clearly distinguished from large numbers of cells by retrieving the color and luminance patterns. Based on these results, we have demonstrated that our optical correlator is an effective tool for retrieval of complicated large volume information, such as that of cell images.

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