Modeling and reconstruction of diffuse optical tomography using adjoint method

Modeling and reconstruction of diffuse optical tomography using adjoint method
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使用伴随法对漫射光学断层扫描进行建模和重建

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
Ge Wang
Ge Wang
中科院分区:
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文献类型:
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作者:
Z. G. Wang;Lizhi Sun;L. Fajardo;Ge Wang

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提出了一种新的基于伴随方法的有限元算法,用于求解软组织频域扩散方程反问题。利用梯度的解析形式,将伴随方法推广到复域,实现了漫射光学层析成像中光学参数的精确高效重建。具体的数值模拟进行了比较,以验证所提出的算法。实验结果表明,该算法对光学参数的重建具有较好的稳定性和鲁棒性。版权所有© 2008约翰威利父子有限公司。
A new finite-element algorithm based on adjoint method is developed to solve the inverse problem of frequent-domain diffusion equation for soft tissues. With the analytical form of gradients, the adjoint method is expanded to complex domains for the reconstruction of optical parameters in diffuse optical tomography accurately and efficiently. Specific numerical simulations are carried out and compared to validate the proposed algorithm. The results demonstrate that the algorithm is stable and robust to reconstruct optical parameters. Copyright © 2008 John Wiley & Sons, Ltd.
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