Paper
20 January 1977 Comparisons Of Coded Aperture Imaging Using Various Apertures And Decoding Methods
Lee-Tzuu Chang, Burns Macdonald, Victor Perez-Mendez
Author Affiliations +
Abstract
The utility of coded aperture imaging of radioisotope distributions in Nuclear Medicine is in its ability to give depth information about a three dimensional source. We have calculated imaging with Fresnel zone plate and multiple pinhole apertures to produce coded shadows and reconstruction of these shadows using correlation, Fresnel diffraction, and Fourier transform deconvolution. Comparisons of the coded apertures and decoding methods are made by evaluating their point response functions both for in-focus and out-of-focus image planes. Background averages and standard deviations were calculated. In some cases, background subtraction was made using combinations of two complementary apertures. Results using deconvolution reconstruction for finite numbers of events are also given.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lee-Tzuu Chang, Burns Macdonald, and Victor Perez-Mendez "Comparisons Of Coded Aperture Imaging Using Various Apertures And Decoding Methods", Proc. SPIE 0089, Applications of Optics in Medicine and Biology, (20 January 1977); https://doi.org/10.1117/12.955025
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Cited by 2 scholarly publications.
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KEYWORDS
Zone plates

Coded aperture imaging

Coded apertures

Deconvolution

Sensors

Imaging systems

Composites

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