Gamma regularization based reconstruction for low dose CT. (7th September 2015)
- Record Type:
- Journal Article
- Title:
- Gamma regularization based reconstruction for low dose CT. (7th September 2015)
- Main Title:
- Gamma regularization based reconstruction for low dose CT
- Authors:
- Zhang, Junfeng
Chen, Yang
Hu, Yining
Luo, Limin
Shu, Huazhong
Li, Bicao
Liu, Jin
Coatrieux, Jean-Louis - Abstract:
- <abstract> <title>Abstract</title> <p>Reducing the radiation in computerized tomography is today a major concern in radiology. Low dose computerized tomography (LDCT) offers a sound way to deal with this problem. However, more severe noise in the reconstructed CT images is observed under low dose scan protocols (e.g. lowered tube current or voltage values). In this paper we propose a Gamma regularization based algorithm for LDCT image reconstruction. This solution is flexible and provides a good balance between the regularizations based on <italic>l</italic><sub>0</sub>-norm and <italic>l</italic><sub>1</sub>-norm. We evaluate the proposed approach using the projection data from simulated phantoms and scanned Catphan phantoms. Qualitative and quantitative results show that the Gamma regularization based reconstruction can perform better in both edge-preserving and noise suppression when compared with other norms.</p> </abstract>
- Is Part Of:
- Physics in medicine & biology. Volume 60:Number 17(2015:Sep.)
- Journal:
- Physics in medicine & biology
- Issue:
- Volume 60:Number 17(2015:Sep.)
- Issue Display:
- Volume 60, Issue 17 (2015)
- Year:
- 2015
- Volume:
- 60
- Issue:
- 17
- Issue Sort Value:
- 2015-0060-0017-0000
- Page Start:
- 6901
- Page End:
- 6921
- Publication Date:
- 2015-09-07
- Subjects:
- Biophysics -- Periodicals
Medical physics -- Periodicals
610.153 - Journal URLs:
- http://ioppublishing.org/ ↗
http://iopscience.iop.org/0031-9155 ↗ - DOI:
- 10.1088/0031-9155/60/17/6901 ↗
- Languages:
- English
- ISSNs:
- 0031-9155
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 3916.xml