ERROR ANALYSIS OF TOMOGRAPHIC FILTERS .2. RESULTS

被引：36

作者：

MUNSHI, P ^{[1
]}

RATHORE, RKS ^{[1
]}

RAM, KS ^{[1
]}

KALRA, MS ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,KANPUR 208016,UTTAR PRADESH,INDIA

来源：

NDT & E INTERNATIONAL | 1993年 / 26卷 / 05期

关键词：

TOMOGRAPHY; FILTERS; CONVOLUTION BACKPROJECTION ALGORITHM;

D O I：

10.1016/0963-8695(93)90353-V

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The convolution backprojection algorithm (CBP) has been studied from the point-of-view of the already published error formula which relates the error in reconstructions, under certain ideal conditions, to the Fourier-space derivatives of the filter functions employed in CBP. The results, for simulated images representing a damaged nuclear reactor fuel assembly and a cross-section of human brain, indicate that the error pattern obtained is in concurrence with the theory. Experimental results for a pixel size of 20 mum are also included.

引用

页码：235 / 240

页数：6

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