A reconstruction approach to CT with Cauchy RBFs network | |
Zhang, JZ ; Li, HY ; Li HY(李海燕) | |
2004 | |
英文摘要 | A new reconstruction approach to computerized tomography(CT) with Cauchy Radial Basis Functions network is presented. The distribution of material parameters is represented by the weighting sum of Cauchy functions. The analytical formula of the line integral of Cauchy functions along any straight-line path is deduced, and the theoretical projection data along a bent ray is computed by optimization algorithm. The parameters in RBFs network are found by the learning rule based on the gradient decent method. The new reconstruction approach is suitable for the CT with a relatively small number of bent ray paths or projection dada, such as seismic tomography. Computer simulations show its good effects. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/62186] |
专题 | 化学化工-已发表论文 |
推荐引用方式 GB/T 7714 | Zhang, JZ,Li, HY,Li HY. A reconstruction approach to CT with Cauchy RBFs network[J],2004. |
APA | Zhang, JZ,Li, HY,&李海燕.(2004).A reconstruction approach to CT with Cauchy RBFs network.. |
MLA | Zhang, JZ,et al."A reconstruction approach to CT with Cauchy RBFs network".(2004). |
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