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Matched filter processing of raster-scanned images: analysis

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Abstract

The performance of the matched filter technique on TV raster-scanned images has been analyzed and simulated with two types of input object. The output correlation is a function of bandwidth used for the matched filter. For a Nyquist bandwidth-matched filter, the output correlation does not decrease substantially (only about 3–4%) as the object becomes smaller. If the matched filter bandwidth becomes large enough to cover the total object spectrum, the correlation starts to decrease substantially when the number of scan lines per resolved image element becomes less than four.

© 1976 Optical Society of America

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