2024-03-28T18:31:28Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02001979
2022-02-14T21:20:00Z
1642837622505:1642837855274:1642837875711
1642838403551:1642838406845
反復法によるURAトモグラフィックイメージの画質改善
Improvement of URA Tomographic Images Based on an Iterative Algorithm
北畠, 憲俊
陳, 延偉
仲尾, 善勝
Kitabatake, Noritoshi
Chen, Yen-Wei
Nakao, Zensho
URA Coded aperture imaging
Tomographic imaging
Iterative algorithm
A single-pinhole camera is usually used for X-rey imaging. In URA coded aperture camera, the pinhole is replaced by multi-pinhole arrays arranged in m-sequences. Since the URA camera can view the object with a large solid angle, it can also provide some tomographic resolution for three-dimensional objects. But a reconstructed image is blurred by defocus artifact. In this paper, we propose a new iterative algorithm to remove the defocus artifact. We show that the reconstructed image can be improved by using the proposed iterative algorithm.
紀要論文
http://purl.org/coar/resource_type/c_6501
琉球大学工学部
VoR
http://hdl.handle.net/20.500.12000/1961
0389-102X
AN0025048X
琉球大学工学部紀要
58
78
73
jpn
open access