Optical Image Subtraction

作者: John F. Ebersole

DOI: 10.1117/12.7971809

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摘要: There are several methods for optically subtracting one image from another in order to detect differences between scenes or photographs of scenes. many applications such a technology, including earth resource studies, meteorology, automatic surveillance and/or inspection, pattern recognition, urban growth and bandwidth compression. This paper presents an overview techniques obtaining optical subtraction, holographic, interferometric, coding, positive-negative superposition methods. As part this review, table is presented summa-rizing comparing the characteristics more than twenty-five approaches. An extensive bibliography also given.

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