Sampling in parallel-beam tomography

被引：0
|
作者：
Faridani, A [1 ]
机构：
[1] Oregon State Univ, Dept Math, Corvallis, OR 97331 USA
来源：
INVERSE PROBLEMS, TOMOGRAPHY, AND IMAGE PROCESSING | 1998年
关键词：
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
We present Shannon sampling theory for functions defined on T x R, where T denotes the circle group, prove a new estimate for the aliasing error, and apply the result to parallel-beam diffraction tomography. The class of admissible sampling lattices is characterized and general sampling conditions are derived which lead to the identification of new efficient sampling schemes. Corresponding results for x-ray tomography are obtained in the high-frequency limit.
引用
收藏
页码：33 / 53
页数：21
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