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Coded Aperture Imaging: A Comparison Between Fresnel Zone Apertures and Uniformly Redundant Array Apertures.

机译:编码孔径成像:菲涅耳区孔径与均匀冗余阵列孔径的比较。

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摘要

Using computer simulations,comparisons are made between a one-dimensional Fresnel zone aperture and a one dimensional uniformly redundant array aperture. In the former case,artifacts may produce severe distortions in the reconstructed image,and an iterative technique to remove these artifacts is described. In comparison to the Fresnel zone aperture,images reconstructed from uniformly redundant array apertures have few artifacts. A quantum noise analysis for the uniformly redundant array is presented to indicate the conditions under which a uniformly redundant array will produce a signal-to-noise advantage compared to an equivalent pinhole aperture. (ERA citation 04:014479)

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