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DOI:	10.1371/journal.pone.0106090
论文题名:	A Multiresolution Approach to Discrete Tomography Using DART
作者:	Andrei Dabravolski; Kees Joost Batenburg; Jan Sijbers
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-9-5
卷:	9, 期:9
语种:	英语
英文关键词:	Algorithms ; Tomography ; Computed axial tomography ; Corals ; Jaw ; Micro-computed tomography ; Imaging techniques ; Magnetic resonance imaging
英文摘要:	In discrete tomography, a scanned object is assumed to consist of only a few different materials. This prior knowledge can be effectively exploited by a specialized discrete reconstruction algorithm such as the Discrete Algebraic Reconstruction Technique (DART), which is capable of providing more accurate reconstructions from limited data compared to conventional reconstruction algorithms. However, like most iterative reconstruction algorithms, DART suffers from long computation times. To increase the computational efficiency as well as the reconstruction quality of DART, a multiresolution version of DART (MDART) is proposed, in which the reconstruction starts on a coarse grid with big pixel (voxel) size. The resulting reconstruction is then resampled on a finer grid and used as an initial point for a subsequent DART reconstruction. This process continues until the target pixel size is reached. Experiments show that MDART can provide a significant speed-up, reduce missing wedge artefacts and improve feature reconstruction in the object compared with DART within the same time, making its use with large datasets more feasible.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0106090&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19213
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0106090.PDF（2122KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

iMinds-Vision lab, University of Antwerp, Antwerp, Belgium;iMinds-Vision lab, University of Antwerp, Antwerp, Belgium;Centrum Wiskunde & Informatica (CWI), Amsterdam, The Netherlands;Mathematical Institute, Leiden University, Leiden, The Netherlands;iMinds-Vision lab, University of Antwerp, Antwerp, Belgium

Recommended Citation:

Andrei Dabravolski,Kees Joost Batenburg,Jan Sijbers. A Multiresolution Approach to Discrete Tomography Using DART[J]. PLOS ONE,2014-01-01,9(9)

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