Graduate (Archived)
Major
Mathematics (M.S.)
Research Presentation Abstract
Computed tomography (CT) is image reconstruction of objects using computer processed transmission or reflection data, usually referred to as projection data, from x-ray scanning. This projection data is often modeled using line integrals, but x-rays are of finite width in reality, so the accuracy of the projection data can be improved if an area based approach is used instead. In addition emitter beam shapes affect the reconstruction effectiveness and data collection efficiency, with the two main types of beam choice for 2-D scanning being fan beam and parallel beam. Fan beam scanning offers some advantages over parallel beam, such as faster data collection. This presentation presents an area based fan beam projection model for CT and discusses its effectiveness based on numerical image reconstruction experiments using the proposed model, and several different reconstruction algorithms.
Keywords
Computed Tomography, Fan Beam, Projection models
Publication Type and Release Option
Presentation (Open Access)
Copyright
This work is archived and distributed under the repository's Standard Copyright and Reuse License (opens in new tab). End users may copy, store, and distribute this work without restriction. For all other uses, permission must be obtained from the copyright owners or their authorized agents.
Principal Faculty Mentor
Jiehua Zhu
Principal Faculty Mentor Email
jzhu@georgiasouthern.edu
Principal Faculty Mentor’s Department
Mathematical Sciences (COSM)
Recommended Citation
Stevens, Phillip J., "Area Based Fan Beam Projection Model for Computed Tomography" (2014). Phi Kappa Phi Research Symposium (Archived). 1.
https://digitalcommons.georgiasouthern.edu/pkp/2014/Graduate/1
Archived Content
This record and associated content is retained solely for reference, research, or recordkeeping as part of an archived collection. This content is not actively developed, disseminated, or promoted as part of any ongoing University program, service, or activity. Learn more about archived collections (opens in new tab).
To request an accessible version of any item in this archived collection, complete this form (opens in new tab) or email digitalcommons@georgiasouthern.edu.
Included in
Area Based Fan Beam Projection Model for Computed Tomography
Computed tomography (CT) is image reconstruction of objects using computer processed transmission or reflection data, usually referred to as projection data, from x-ray scanning. This projection data is often modeled using line integrals, but x-rays are of finite width in reality, so the accuracy of the projection data can be improved if an area based approach is used instead. In addition emitter beam shapes affect the reconstruction effectiveness and data collection efficiency, with the two main types of beam choice for 2-D scanning being fan beam and parallel beam. Fan beam scanning offers some advantages over parallel beam, such as faster data collection. This presentation presents an area based fan beam projection model for CT and discusses its effectiveness based on numerical image reconstruction experiments using the proposed model, and several different reconstruction algorithms.