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Communications

Effect of the fill factor of CCD pixels on digital holograms: comment on the papers “Frequency analysis of digital holography” and “Frequency analysis of digital holography with reconstruction by convolution”

[+] Author Affiliations
Cheng-Shan Guo

Nanjing University, National Laboratory of Solid State Microstructures, Nanjing 210093, China and Shandong Normal University, Department of Physics, Jinan 250014, China

Li Zhang, Zhen-Yu Rong

Shandong Normal University, Department of Physics, Jinan 250014, China

Hui-Tian Wang

Nanjing University, National Laboratory of Solid State Microstructures, Nanjing 210093, China

Opt. Eng. 42(9), 2768-2771 (Sep 01, 2003). doi:10.1117/1.1599841
History: Received Feb. 6, 2003; Accepted Mar. 7, 2003; Online August 22, 2003
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In digital holography, holograms are digitally recorded by a CCD camera and stored in a computer’s memory. The reconstruction of the recorded wave field from the digitally stored hologram is realized numerically by the computer.123 This technique has found numerous applications, especially in 3-D microscopy,45 encryption,6 pattern recognition,7 and surface contouring.8 The process of digital holography by recording an interference pattern with a CCD array, and storing it in a computer to numerically reconstructing it can be interpreted as a coherent optical imaging system, which can be analyzed by Fourier optics and can be characterized by a point spread function (PSF). Such an analysis has been reported in recent publications written by Kreis.910 In this work, we indicate some shortages in Kreis’ analysis. At the same time we describe our new treatment and some new analytical results.

© 2003 Society of Photo-Optical Instrumentation Engineers

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Cheng-Shan Guo ; Li Zhang ; Zhen-Yu Rong and Hui-Tian Wang
"Effect of the fill factor of CCD pixels on digital holograms: comment on the papers “Frequency analysis of digital holography” and “Frequency analysis of digital holography with reconstruction by convolution”", Opt. Eng. 42(9), 2768-2771 (Sep 01, 2003). ; http://dx.doi.org/10.1117/1.1599841


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