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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/24298
New multiple matched filter: design and experimental realization
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A method of making a multiple matched filter which allows the recognition of different characters in successive planes in simple conditions is proposed. The generation of the filter is based on recording on the same plate the Fourier transforms of the different patterns to be recognized, each of which is affected by different spherical phase factors because the patterns have been placed at different distances from the lens. This is proved by means of experiments with a triple filter which allows satisfactory recognition of three characters.
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VALLMITJANA I RICO, Santiago, et al. New multiple matched filter: design and experimental realization. Applied Optics. 1986. Vol. 25, num. 23, pags. 4473-4475. ISSN 0003-6935. [consulted: 13 of June of 2026]. Available at: https://hdl.handle.net/2445/24298