...
首页> 外文期刊>Optical engineering >Penalty method for source reconstruction of multispectral bioluminescence tomography
【24h】

Penalty method for source reconstruction of multispectral bioluminescence tomography

机译:多光谱生物发光层析成像源重构的惩罚方法

获取原文
获取原文并翻译 | 示例
           

摘要

Bioluminescence tomography (BLT) is a promising optical molecular imaging technique in preclinical research. One key problem for BLT is how to deal with the severe ill-posedness and obtain accurate and stable reconstruction. We propose a penalty method for recovering bioluminescence sources, in which we transform reconstruction of BLT into an L_(1/2)-norm penalty problem and solve it via a nonmonotone proximal gradient method with a suitable penalty parameter update scheme. Simulations and phantom experiments based on multispectral measurements were designed to evaluate the proposed reconstruction method. The encouraging results show that the proposed method has better reconstruction accuracy and image quality than the comparative methods.
机译:生物发光层析成像(BLT)是临床前研究中一种有前途的光学分子成像技术。 BLT的关键问题之一是如何处理严重的不适,并获得准确,稳定的重建。我们提出了一种用于恢复生物发光源的惩罚方法,该方法将BLT的重构转化为L_(1/2)-范数惩罚问题,并通过具有合适惩罚参数更新方案的非单调近端梯度法对其进行求解。设计了基于多光谱测量的仿真和幻影实验,以评估所提出的重建方法。令人鼓舞的结果表明,与比较方法相比,该方法具有更好的重建精度和图像质量。

著录项

  • 来源
    《Optical engineering》 |2018年第8期|083104.1-083104.8|共8页
  • 作者单位

    Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China;

    Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China;

    Shaanxi Normal University, School of Physics and Information Technology, Xi'an, China;

    Northwest University, School of Information Sciences and Technology, Xi'an, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    tomography; image reconstruction techniques; medical and biological imaging; inverse problems;

    机译:断层扫描图像重建技术;医学和生物影像学;反问题;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号