He Guo
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Alma Mater:大连理工大学
Degree:Master's Degree
School/Department:软件学院、国际信息与软件学院
Contact Information:guohe@dlut.edu.cn
E-Mail:guohe@dlut.edu.cn
Hits:
Indexed by:期刊论文
Date of Publication:2014-09-01
Journal:MAGNETIC RESONANCE IMAGING
Included Journals:SCIE、PubMed、Scopus
Volume:32
Issue:7
Page Number:924-933
ISSN No.:0730-725X
Key Words:MRI; Compressed Sensing; l1-SPIRiT; Walsh transform
Abstract:l1-SPIRiT is a fast magnetic resonance imaging (MRI) method which combines parallel imaging (PI) with compressed sensing (CS) by performing a joint l1-norm and l2-norm optimization procedure. The original l1-SPIRiT method uses two-dimensional (2D) Wavelet transform to exploit the intra-coil data redundancies and a joint sparsity model to exploit the inter-coil data redundancies. In this work, we propose to stack all the coil images into a three-dimensional (3D) matrix, and then a novel 3D Walsh transform-based sparsity basis is applied to simultaneously reduce the intra-coil and inter-coil data redundancies. Both the 2D Wavelet transform-based and the proposed 3D Walsh transform-based sparsity bases were investigated in the l1-SPIRiT method. The experimental results show that the proposed 3D Walsh transform-based l1-SPIRiT method outperformed the original l1-SPIRiT in terms of image quality and computational efficiency. (C) 2014 Elsevier Inc. All rights reserved.
教育背景:
学士学位:吉林大学计算机系,1982
硕士学位:大连理工大学计算机系,1989
科研与工作经历:
1986年10月—1987年10月,新西兰Progeni Company,访问学者
1990年10月—1992年12月,德国PDI Karlsruhe University计算机系,访问学者
1992年12月—2007年12月,大连理工大学计算机系,副教授
1995年3月—1996年6月,大连市金卡工程系统,总工程师
2008年1月—今,大连理工大学软件学院,教授
2020年4月 退休
教学工作:
1992年—2007年,计算机导论,计算机组织与结构,计算机系统结构
2009年—2019年,存储技术,计算机系统结构,并行计算
科研:
研究兴趣:并行与分布式计算。