NDLI: Polynomial accelerated algorithm base on minimizing TV for computerized tomographic image reconstruction

Content Provider	IEEE Xplore Digital Library
Author	Hui Kang Gao, H. Yueming Hu
Copyright Year	2012
Description	Author affiliation: Engineering Research Center for Precision Electronic Manufacturing Equipments of Ministry of Education, College of Automation Science and Engineering, South China University of Technology, GuangZhou, China (Hui Kang; Gao, H.; Yueming Hu)
Abstract	Based on total variation minimization (TV) algorithm and the theory of polynomial acceleration, we prompted a modified algorithm, which is called P-TV in this paper. This new algorithm has a better noise immunity and fewer iteration numbers than the traditional TV algorithm. P-TV algorithm can be divided into four steps. Compared to the traditional TV algorithm, the P-TV algorithm applies the theory of polynomials to ART iteration step to enforce data consistency with the projection data and applies the positivity constraint after the GRAD-step too, which accelerate convergence of image reconstruction. Simulation results prove that when the iteration number is the same, the quality of reconstructed image from P-TV algorithm is better than traditional TV algorithm. When the quality of image reconstructed by both algorithms is nearly the same, the iteration number of P-TV algorithm is much less than the number of traditional TV algorithm. At last we applied the two algorithms to CT image reconstruction from the noisy data. All results show that the P-TV algorithm is effective.
Starting Page	821
Ending Page	824
File Size	967555
Page Count	4
File Format	PDF
ISBN	9781467315593
e-ISBN	9781467315609
e-ISBN	9781467315586
DOI	10.1109/CONTROL.2012.6334737
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-03
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	CT TV Computed tomography Polynomial acceleration algorithm Few-views Educational institutions Polynomials Acceleration TV algorithm Image reconstruction Convergence
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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