首页> 外文会议>International Conference on Advanced Technologies for Signal and Image Processing >Partial volume effect correction in PET image using iterative deconvolution and shearlet transform
【24h】

Partial volume effect correction in PET image using iterative deconvolution and shearlet transform

机译:使用迭代反卷积和Slicelet变换校正PET图像中的部分体积效应

获取原文

摘要

The partial volume effect (PVE) is a degradation affected the positron emission tomography (PET) images. This limitation is due to the tissue fraction effect and the limited spatial resolution of the PET image. Here, we present a new correction method based on iterative deconvolution and shearlet transform. The purpose of this findig is to overcome the amplification of noise caused by the Lucy-Richardson deconvolution algorithm (LRD). A regularization step based on a shearlet transform was used in order to reduce the noise level generated by LRD. The method provided good SNR improvements and achieved a notable intensity recovery.
机译:部分体积效应(PVE)是受正电子发射断层扫描(PET)图像影响的退化。该限制是由于组织分数效应和PET图像有限的空间分辨率所致。在这里,我们提出了一种基于迭代反卷积和Sletletlet变换的新校正方法。该发现的目的是克服由露西-理查森反卷积算法(LRD)引起的噪声放大。为了减少LRD产生的噪声水平,使用了基于剪切波变换的正则化步骤。该方法提供了良好的SNR改善,并实现了明显的强度恢复。

著录项

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