11 March 2008 Simultaneous iterative reconstruction technique for diffuse optical tomography imaging: iteration criterion and image recognition
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Abstract
Diffuse optical tomography (DOT) is an emerging technique for biomedical imaging. The imaging quality of the DOT strongly depends on the reconstruction algorithm. In this paper, four inhomogeneities with various shapes of absorption distributions are simulated by a continues-wave DOT system. The DOT images are obtained based on the simultaneous iterative reconstruction technique (SIRT) method. To solve the trade-off problem between time consumption of reconstruction process and accuracy of reconstructed image, the iteration process needs a optimization criterion in algorithm. In this paper, the comparison between the root mean square error (RMSE) and the convergence rate (CR) in SIRT algorithm are demonstrated. From the simulation results, the CR reveals the information of global minimum in the iteration process. Based on the CR calculation, the SIRT can offer higher efficient image reconstructing in DOT system.
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Zong-Han Yu, Zong-Han Yu, Chun-Ming Wu, Chun-Ming Wu, Yo-Wei Lin, Yo-Wei Lin, Ming-Lung Chuang, Ming-Lung Chuang, Jui-che Tsai, Jui-che Tsai, Chia-Wei Sun, Chia-Wei Sun, "Simultaneous iterative reconstruction technique for diffuse optical tomography imaging: iteration criterion and image recognition", Proc. SPIE 6864, Biomedical Applications of Light Scattering II, 686414 (11 March 2008); doi: 10.1117/12.764559; https://doi.org/10.1117/12.764559
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