Rotating polar-coordinate ART applied in industrial CT image reconstruction

被引：19

作者：

Li Jian ^{[1
]}

Li Litao ^{[1
]}

Cong Peng ^{[1
]}

Song Qi ^{[1
]}

Wu Zhifang ^{[1
]}

机构：

[1] Tsing Hua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

来源：

NDT & E INTERNATIONAL | 2007年 / 40卷 / 04期

关键词：

rotating polar-coordinate; image reconstruction; ART; PART;

D O I：

10.1016/j.ndteint.2006.11.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

With incomplete or noisy projections, algebraic reconstruction technique (ART) algorithms can get better image qualities than convolution back-projection (CBP) algorithm. But, it's too slow to meet the practical industrial requirements. Rotating polar-coordinate technique was introduced into ART in this paper, forming Polar-ART (PART) algorithm. PART is 2.7 times as fast as ART with nearly the same quantitative accuracy and it does not need as much memory as ART, which is proved by experiments on Co-60 container CT inspection system. A drawback of PART is the loss of resolution in reconstructed images. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：333 / 336

页数：4