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Regularized total least squares approach for nonconvolutional linear inverse problems
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DOI：10.1109/83.799895.png)
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摘要
En 中文
In this correspondence, a solution is developed for the regularized total least squares (RTLS) estimate in linear inverse problems where the linear operator is nonconvolutional. Our approach is based on a Rayleigh quotient (RQ) formulation of the TLS problem, and we accomplish regularization by modifying the RQ function to enforce a smooth solution. A conjugate gradient algorithm is used to minimize the modified RQ function. As an example, the proposed approach has been applied to the perturbation equation encountered in optical tomography. Simulation results show that this method provides more stable and accurate solutions than the regularized least squares and a previously reported total least squares approach, also based on the RQ formulation.
Keyword:
image reconstruction
image recovery
image restoration
inverse problems
optical tomography
regularization
tomographic imaging
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期刊
IF:
13.7
论文数:
1.0W
被引数:
8.4W
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