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
收藏
页码：76 / 83
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