Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Low-dose CT reconstruction via L1 dictionary learning regularization using iteratively reweighted least-squares | |
Zhang, C.; T. Zhang; M. Li; C. T. Peng; Z. B. Liu and J. Zheng | |
2016 | |
发表期刊 | Biomedical Engineering Online |
卷号 | 15 |
摘要 | We propose a novel three-dimensional (3D) ghost imaging method using unfocused ultrasonic transducer, where the transducer is used as the bucket detector to collect the total photoacoustic signal intensity from spherical surfaces with different radius circling the transducer. This collected signal is a time sequence corresponding to the optic absorption information on the spherical surfaces, and the values at the same moments in all the sequences are used as the bucket signals to restore the corresponding spherical images, which are assembled as the object 3D reconstruction. Numerical experiments show this method can effectively accomplish the 3D reconstruction and by adding up each sequence on time domain as a bucket signal it can also realize two dimensional (2D) ghost imaging. The influence of the measurement times on the 3D and 2D reconstruction is analyzed with Peak Signal to Noise Ratio (PSNR) as the yardstick, and the transducer as a bucket detector is also discussed. (C) 2016 Elsevier B.V. All rights reserved. |
文章类型 | 期刊 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | BMC:10.1186/s12938-016-0193-y |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/57401 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Zhang, C.,T. Zhang,M. Li,et al. Low-dose CT reconstruction via L1 dictionary learning regularization using iteratively reweighted least-squares[J]. Biomedical Engineering Online,2016,15. |
APA | Zhang, C.,T. Zhang,M. Li,C. T. Peng,&Z. B. Liu and J. Zheng.(2016).Low-dose CT reconstruction via L1 dictionary learning regularization using iteratively reweighted least-squares.Biomedical Engineering Online,15. |
MLA | Zhang, C.,et al."Low-dose CT reconstruction via L1 dictionary learning regularization using iteratively reweighted least-squares".Biomedical Engineering Online 15(2016). |
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Low-dose CT reconstr(3509KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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