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• W2008807821 abstract "Diffuse optical tomography (DOT) allows tomographic (3D), non-invasive reconstructions of tissue optical properties for biomedical applications. Severe under-sampling is a common problem in DOT which leads to image artifacts. A large number of measurements is needed in order to minimize these artifacts. In this work, we introduce a compressed sensing (CS) framework for DOT which enables improved reconstructions with under-sampled data. The CS framework uses a sparsifying basis, ℓ1-regularization and random sampling to reduce the number of measurements that are needed to achieve a certain accuracy. We demonstrate the utility of the CS framework using numerical simulations. The CS results show improved DOT results in comparison to traditional linear reconstruction methods based on singular-value decomposition (SVD) with ℓ2-regularization and with regular and random sampling. Furthermore, CS is shown to be more robust against the reduction of measurements in comparison to the other methods. Potential benefits and shortcomings of the CS approach in the context of DOT are discussed." @default.
• W2008807821 created "2016-06-24" @default.
• W2008807821 creator A5026544654 @default.
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• W2008807821 date "2010-10-27" @default.
• W2008807821 modified "2023-10-17" @default.
• W2008807821 title "Compressed sensing in diffuse optical tomography" @default.
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• W2008807821 doi "https://doi.org/10.1364/oe.18.023676" @default.
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