SVD-Based Evaluation of Multiplexing in Multipinhole SPECT Systems

<table>Comparison of reconstructed images in two-dimensional
simulation after (a) 1, (b) 9, (c) 17, and (d) 25 iterations. (e) The image reconstructed as <svg height="19.8125" id="M91" style="vertical-align:-2.79825pt" version="1.1" viewbox="0 0 55.049999 19.8125" width="55.049999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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<g transform="matrix(.017,-0,0,-.017,25.65,16.262)"><path d="M426 365v-1q86 -11 139.5 -59t53.5 -117q0 -84 -72 -136q-71 -52 -202 -52h-329v25q54 6 71 21t17 57v467q0 44 -18.5 60.5t-69.5 20.5v25h317q121 0 186.5 -41.5t65.5 -118.5q0 -60 -38 -97t-121 -54zM264 592v-219q92 0 123 30q33 30 33 106q0 137 -99 137
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<g transform="matrix(.012,-0,0,-.012,36.988,8.1)"><path d="M649 676l-22 -187l-33 -2q3 56 -12 94q-8 20 -31.5 26.5t-86.5 6.5h-74l-90 -491q-4 -23 -6 -36.5t1 -25t7 -16.5t18 -9t27 -5t41 -3l-6 -28h-286l4 28q68 5 84 18.5t28 76.5l94 491h-55q-74 0 -100.5 -6t-41.5 -23q-24 -29 -54 -98l-32 1q32 98 53 188h22q7 -18 15 -22
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</svg>. (f) The original phantom.</table>

International Journal of Biomedical Imaging

SVD-Based Evaluation of Multiplexing in Multipinhole SPECT Systems

Figure 6