Image degradation and stroboscopic images caused by rotary motion of the object in x-ray computer tomography

被引：0

作者：

Sakamoto, Takashi ^{[1
]}

Sato, Shunsuke ^{[1
]}

机构：

[1] Osaka Univ, Toyonaka, Japan

来源：

Systems and Computers in Japan | 1993年 / 24卷 / 09期

关键词：

Computer simulation - Image processing - Image quality - Image reconstruction;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper analyzes the degradation of reconstructed images and artifacts due to the rotary motion of a rigid object. The degradation of a CT image caused by rotation of an arbitrarily shaped rigid object is formulated by using a point-spread function. The characteristics of blurred images of a rigid object due to its rotation in a CT and the shape of blurred images also are analyzed. The cause of stroboscopic images is explained by using line sources. The theories have been confirmed by computer simulation.

引用

页码：76 / 83

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