AN EXPLANATION OF THE EFFECTS OF SQUASHING IN LIMITED ANGLE TOMOGRAPHY

被引：4

作者：

OLSON, T ^{[1
]}

JAFFE, JS ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG,MARINE PHYS LAB A005,LA JOLLA,CA 92093

来源：

IEEE TRANSACTIONS ON MEDICAL IMAGING | 1990年 / 9卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1109/42.57761

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper explains the effects of Squashing, an algorithm introduced by J. A. Reeds and L. A. Shepp |1]. It is proven that Squashing induces a weight function upon the projections. Intuitive and numerical evidence is presented which shows that this weight function is not desirable at limited angles. Finally, a method to counteract the effects of the weight function and extend the usefulness of the algorithm to 120 degrees is proposed. © 1990 IEEE

引用

页码：242 / 246

页数：5