The image error possibly from ct imageartifact was analyzed after scanning a self made phantom by ct.
对自制模体行ct扫描，分析CT图像伪影可能引起的图像误差。
2
Methods Imageartifact was classified two sorts such as regular artifact and irregular artifact by faults phenomenon.
方法根据故障现象，将图像伪影分为规则伪影和不规则伪影两大类。
3
To improve the clarity of CT image, and reduce the disadvantageous affect of the artifact, the article proposes a method of reducing CT imageartifact based on wavelet soft threshold.