南方科技大学知识苑(SUSTech KC): Image reconstruction based on nonlinear diffusion model for limited-angle computed tomography

题名	Image reconstruction based on nonlinear diffusion model for limited-angle computed tomography
作者	Zhao，Xuying 1; Jiang，Wenjin 1; Zhang，Xinting 1; Guo，Wenxiu 1; Zhao，Yunsong 1,2,3; Zhao，Xing 1,2,3
通讯作者	Zhao，Yunsong
发表日期	2024-04-01
DOI	10.1088/1361-6420/ad2695
发表期刊	Inverse Problems 影响因子和分区
ISSN	0266-5611
EISSN	1361-6420
卷号	40 期号:4
摘要	The problem of limited-angle computed tomography (CT) imaging reconstruction has a wide range of practical applications. Due to various factors such as high x-ray absorption, structural characteristics of the scanned object, and equipment limitations, it is often impractical to obtain a complete angular scan, resulting in limited-angle scan data. In this paper, we propose an iterative image reconstruction algorithm for limited-angle CT. The algorithm carries out a traditional CT reconstruction and a nonlinear diffusion process alternatively. Specifically, a subtle partial differential equation is constructed to guide the nonlinear diffusion process to eliminate limited-angle artifacts in the reconstructed image. Numerical experiments on both analytic data and real data validate the efficacy of the proposed nonlinear diffusion reconstruction algorithm. Furthermore, a linear diffusion reconstruction algorithm which combines a traditional CT reconstruction algorithm and a linear diffusion process is also presented in the paper.
关键词	image reconstruction iterative method limited-angle CT nonlinear diffusion
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	通讯
ESI学科分类	PHYSICS
Scopus记录号	2-s2.0-85186385112
来源库	Scopus
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/729098
专题	南方科技大学
作者单位	1.School of Mathematical Sciences,Capital Normal University,Beijing,100048,China 2.Beijing Advanced Innovation Center for Imaging Technology,Capital Normal University,Beijing,100048,China 3.Shenzhen National Applied Mathematics Center,Southern University of Science and Technology,Shenzhen,518055,China
通讯作者单位	南方科技大学
推荐引用方式 GB/T 7714	Zhao，Xuying,Jiang，Wenjin,Zhang，Xinting,et al. Image reconstruction based on nonlinear diffusion model for limited-angle computed tomography[J]. Inverse Problems,2024,40(4).
APA	Zhao，Xuying,Jiang，Wenjin,Zhang，Xinting,Guo，Wenxiu,Zhao，Yunsong,&Zhao，Xing.(2024).Image reconstruction based on nonlinear diffusion model for limited-angle computed tomography.Inverse Problems,40(4).
MLA	Zhao，Xuying,et al."Image reconstruction based on nonlinear diffusion model for limited-angle computed tomography".Inverse Problems 40.4(2024).