@inproceedings{9a9c81db677246bcb5bc363ac69deeac,
title = "An improved backprojection algorithm for spiral cone-beam CT with an improved ray traverse algorithm",
abstract = "The first theoretically exact reconstruction algorithm for spiral cone-beam CT was proposed in 2002 by Katsevich. One bottleneck of the algorithm is that each projection memory space has to be read for more than once. If there are N voxels on each Π-line and there are S Π-line cover source positions s, then the memory will be accessed up to O(N×S) times. In this paper, we propose an improved backprojection algorithm for Katsevich's formula accompanied with an improved ray traverse algorithm. The proposed ray-driven based algorithm reduces the time read memory down to only once.",
keywords = "Medical image reconstruction, Ray traverse algorithm, Spiral cone-beam CT",
author = "Guowei Xue and Yan Zhang and Jia Li",
year = "2009",
doi = "10.1145/1655925.1656069",
language = "英语",
isbn = "9781605587103",
series = "ACM International Conference Proceeding Series",
pages = "790--795",
booktitle = "Proceedings of 2nd International Conference on Interaction Sciences",
note = "2nd International Conference on Interaction Sciences: Information Technology, Culture and Human, ICIS 2009 ; Conference date: 24-11-2009 Through 26-11-2009",
}