Expansion of two-dimensional imaging apertures for resolutionimprovement in long-wavelength holography
A method is described for improving resolution in long-wavelength holography by expanding the two-dimensional hologram aperture. Simulation results are presented to illustrate resolution improvements obtained when doubling the linear size of square apertures for imaging single-point, multiple-point...
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| Format: | article |
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1990
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| Online Access: | https://eprints.kfupm.edu.sa/id/eprint/14486/1/14486_1.pdf https://eprints.kfupm.edu.sa/id/eprint/14486/2/14486_2.doc |
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| Summary: | A method is described for improving resolution in long-wavelength holography by expanding the two-dimensional hologram aperture. Simulation results are presented to illustrate resolution improvements obtained when doubling the linear size of square apertures for imaging single-point, multiple-point and quasi-continuous objects in the presence of noise. A technique for improving the quality of images reconstructed from predicted holograms using a number of focus measures is described. Alternative strategies for reconstructing the two-dimensional holograms are discussed and their performance compared regarding prediction errors and noise. Data is supplied on CPU time usage for hologram expansion and reconstruction on a VAX-11/785 computer |
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