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- Title
Low-Dose CT Image Post-Processing Based on Learn-Type Sparse Transform.
- Authors
Zheng, Wenfeng; Yang, Bo; Xiao, Ye; Tian, Jiawei; Liu, Shan; Yin, Lirong
- Abstract
As a detection method, X-ray Computed Tomography (CT) technology has the advantages of clear imaging, short detection time, and low detection cost. This makes it more widely used in clinical disease screening, detection, and disease tracking. This study exploits the ability of sparse representation to learn sparse transformations of information and combines it with image decomposition theory. The structural information of low-dose CT images is separated from noise and artifact information, and the sparse expression of sparse transformation is used to improve the imaging effect. In this paper, two different learned sparse transformations are used. The first covers more organizational information about the scanned object. The other can cover more noise artifacts. Both methods can improve the ability to learn sparse transformations to express various image information. Experimental results show that the algorithm is effective.
- Subjects
COMPUTED tomography; MEDICAL screening; X-ray detection; LEARNING ability
- Publication
Sensors (14248220), 2022, Vol 22, Issue 8, pN.PAG
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s22082883