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21 September 2015 Restoration of defocused images using quasi-point sources which are detected with coherent light
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Abstract
In this work, the concept of quasi-point source (qps) is used for the restoration of defocused images of extended objects detected with incoherent light. The method consists of the characterization of the optical system by a qps illuminated with coherent light, its defocused image is then introduced in the restoration process, which is a deconvolution performed with a Wiener filter. The results of the restored images are shown and compared with those images restored when the qps is illuminated with incoherent light. Finally, a numerical evaluation using the RMSD (root mean square deviation method) about the quality of the restoration was made for both cases.
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R. Ortiz-Sosa, L. R. Berriel-Valdos, and J. Félix Aguilar "Restoration of defocused images using quasi-point sources which are detected with coherent light", Proc. SPIE 9600, Image Reconstruction from Incomplete Data VIII, 960004 (21 September 2015); https://doi.org/10.1117/12.2188714
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