[in Chinese], [in Chinese]. A new method to extrect identical and different parts of two images[J]. Chinese Journal of Lasers, 1993, 20(9): 696
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A new method to extract identical and different parts of two images is proposed. Two monchromatic beams modified by the processed images interfere to form a hologram from which the identical or different parts are reconstructed. In our method, multiplication of images and the Stokes principle are applied. The optical setup is simple and easy to align. Real-time processing can be achieved if photorefractive material is used. Experimental results are presented.