Sampling theorem and the number of degrees of freedom of an image |
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| Authors: | V Blažek |
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| Institution: | TESLA-Popov Research Institute of Radiocommunications, 142 21 Praha 4 - Braník, Novodvorská 994, Czechoslovakia |
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| Abstract: | A sampling theorem in a form suitable for coherent optical signals transmitted by an optical system with circular aperture is presented. The theorem is used to calculate the degrees of freedom of an image if the optical system has a disk or a ring aperture. |
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