Title
A High-Quality Photon-Counting Ct Technique Based On Weight Adaptive Total-Variation And Image-Spectral Tensor Factorization For Small Animals Imaging
Abstract
Photon-counting X-ray computed tomography (CT) has been attracting great attention in tissue characterization, material discrimination, and so on. The emitting X-ray energy spectrum cutting into several energy bins that can result in only a part of X-ray photons can be collected within each narrow bin. This can compromise the image quality. In this case, how to obtain high-quality tomography is a big challenge. In this study, to overcome these issues, we mainly focus on developing an advanced imaging software based on the latest photon-counting CT system (MARS scanner). Specifically, we first design a weight adaptive total variation (TV) using compressed sensing theory. Then, combining the weight adaptive TV and nonlocal low-rank tensor factorization to formulate a new weight adaptive total-variation and image-spectral tensor factorization (WATITF) model for high-quality imaging. Finally, the optimization model is performed to obtain its solution. The studies including the numerical and preclinical mice are performed to validate and evaluate its outperformance.
Year
DOI
Venue
2021
10.1109/TIM.2020.3026804
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Keywords
DocType
Volume
Imaging, photon-counting computed tomography (CT), tensor factorization, total variation (TV), small animals
Journal
70
ISSN
Citations 
PageRank 
0018-9456
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Weiwen Wu152.54
Dianlin Hu254.17
Kang An393.45
Shaoyu Wang400.68
Fulin Luo5345.85