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No. 58 (1999/09) >

 
Title :反復法によるURAトモグラフィックイメージの画質改善
Title alternative :Improvement of URA Tomographic Images Based on an Iterative Algorithm
Authors :北畠, 憲俊
陳, 延偉
仲尾, 善勝
Authors alternative :Kitabatake, Noritoshi
Chen, Yen-Wei
Nakao, Zensho
Issue Date :Sep-1999
Abstract :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.
Type Local :紀要論文
ISSN :0389-102X
Publisher :琉球大学工学部
URI :http://hdl.handle.net/20.500.12000/1961
Citation :琉球大学工学部紀要 no.58 p.73 -78
Appears in Collections:No. 58 (1999/09)

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