Sonkar, Munnu and Sastry, Challa Subrahmanya
(2015)
On the roles of sparsity and sparsifying transforms in Computerized Tomography.
Masters thesis, Indian Institute of Technology Hyderabad.
Abstract
X-ray computed tomography (CT) is one of the most widely used imaging modalities for diagnostic tasks in the clinical application. As X-ray dosage given to the patient has potential to induce undesirable clinical consequences, there is a need for reduction in dosage while maintaining good quality in reconstruction.
This report explores the roles of concept of sparsity and sparsifying trans-forms via Frames, Wavelets etc. and their relevance to low-dose tomography. After giving detailed descriptions of basics of Computed Tomography, Frames/Wavelets and Compressive Sensing Theory, the report proposes a TV-norm based method for the reconstruction of Tomography. Finally, the report ends with some discussion on simulation results.
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| IITH Creators: |
| IITH Creators | ORCiD |
|---|
| Sastry, Challa Subrahmanya | UNSPECIFIED |
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| Item Type: |
Thesis
(Masters)
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| Uncontrolled Keywords: |
Wavelets, computed tomography, Frames, TD399 |
| Subjects: |
?? sub3.8 ?? |
| Divisions: |
Department of Mathematics |
| Depositing User: |
Library Staff
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| Date Deposited: |
14 Jul 2015 05:39 |
| Last Modified: |
21 May 2019 10:44 |
| URI: |
http://raiithold.iith.ac.in/id/eprint/1697 |
| Publisher URL: |
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| Related URLs: |
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