NDLI: Fast Katsevich Algorithm Based on GPU for Helical Cone-Beam Computed Tomography

Content Provider	IEEE Xplore Digital Library
Author	Guorui Yan Jie Tian Shouping Zhu Chenghu Qin Yakang Dai Fei Yang Di Dong Ping Wu
Copyright Year	1997
Abstract	Katsevich reconstruction algorithm represents a breakthrough for helical cone-beam computed tomography (CT) reconstruction, because it is the first exact cone-beam reconstruction algorithm of filtered backprojection (FBP) type with 1-D shift-invariant filtering. Although FBP-type reconstruction algorithm is effective, 3-D CT reconstruction is time-consuming, and the accelerations of Katsevich algorithm on CPU or cluster have been widely studied. In this paper, Katsevich algorithm is accelerated by using graphics processing unit, including flat-detector and curved-detector geometry in the case of helical orbit. An overscan formula is derived, which helps to avoid unnecessary overscan in practical CT scanning. Based on the overscan formula, a volume-blocking method in device memory is proposed. One advantage of the blocking method is that it can reconstruct large volume with high speed.
Sponsorship	IEEE Engineering in Medicine and Biology Society IEEE Computer Society
Page Count	9
File Size	632318
Starting Page	1053
Ending Page	1061
File Format	PDF
ISSN	10897771
Volume Number	14
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computed tomography Acceleration Reconstruction algorithms Image reconstruction Clustering algorithms Graphics Content addressable storage Central Processing Unit Biomedical image processing Automation overscan Computed tomography (CT) graphics processing unit (GPU) Katsevich algorithm
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications Biotechnology

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