Open AccessReduction of aliasing artifact in Micro CT
Author(s) -
Zhaoyang Luo,
Xiaoquan Yang,
Yue Meng,
Yong Deng
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8237
Subject(s) - artifact (error) , aliasing , computer science , image quality , artificial intelligence , computer vision , image resolution , image (mathematics) , filter (signal processing)
Micro CT system is a recently developed imaging technique for small animal, which have very high spatial resolution and sensitivity, and is widely used in drug development, cancer detection et al. But in Micro CT, the artifact, specially the aliasing artifact, become serious as the extremely high spatial resolution, which is the major degeneration of image quality. In this paper, we studied the cause of artifact, and simulated it in computer. Finally, we proposed an algorithm to reduce the artifact in CT slice, with artifact elimination rate of 70% or more, and the improved image contrase