Improved total variation minimization method for few-view computed tomography image reconstruction

	Improved total variation minimization method for few-view computed tomography image reconstruction
	Zhanli Hu; Hairong Zheng
刊名	BIOMEDICAL ENGINEERING ONLINE
	2014
英文摘要	Background: Due to the harmful radiation dose effects for patients, minimizing the x-ray exposure risk has been an area of active research in medical computed tomography (CT) imaging. In CT, reducing the number of projection views is an effective means for reducing dose. The use of fewer projection views can also lead to a reduced imaging time and minimizing potential motion artifacts. However, conventional CT image reconstruction methods will appears prominent streak artifacts for few-view data. Inspired by the compressive sampling (CS) theory, iterative CT reconstruction algorithms have been developed and generated impressive results. Method: In this paper, we propose a few-view adaptive prior image total variation (API-TV) algorithm for CT image reconstruction. The prior image reconstructed by a conventional analytic algorithm such as filtered backprojection (FBP) algorithm from densely angular-sampled projections. Results: To validate and evaluate the performance of the proposed algorithm, we carried out quantitative evaluation studies in computer simulation and physical experiment. Conclusion: The results show that the API-TV algorithm can yield images with quality comparable to that obtained with existing algorithms.
收录类别	SCI
原文出处	http://www.biomedical-engineering-online.com/content/13/1/70
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/5723]
专题	深圳先进技术研究院_医工所
作者单位	BIOMEDICAL ENGINEERING ONLINE
推荐引用方式 GB/T 7714	Zhanli Hu,Hairong Zheng. Improved total variation minimization method for few-view computed tomography image reconstruction[J]. BIOMEDICAL ENGINEERING ONLINE,2014.
APA	Zhanli Hu,&Hairong Zheng.(2014).Improved total variation minimization method for few-view computed tomography image reconstruction.BIOMEDICAL ENGINEERING ONLINE.
MLA	Zhanli Hu,et al."Improved total variation minimization method for few-view computed tomography image reconstruction".BIOMEDICAL ENGINEERING ONLINE (2014).