Type
Text
Type
Thesis
Advisor
De, Pradipta | Mueller, Klaus | Yoon, Ilchul.
Date
2014-12-01
Keywords
Bi-directional Ray-tracing, Compton Scattering, CT, General-Purpose GPU, X-ray Photons | Computer science
Department
Department of Computer Science.
Language
en_US
Source
This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree.
Identifier
http://hdl.handle.net/11401/77307
Publisher
The Graduate School, Stony Brook University: Stony Brook, NY.
Format
application/pdf
Abstract
Computed Tomography is widely used in numerous fields. To facilitate the development of an algorithm while avoiding additional radiation dose to the patient, the simulation of the CT imaging process is required. The scattering effect of X-ray photons impact on quality of output images. Thus, modeling the scattering is an important task to predict and eliminate the effects on energy. However, the simulation has been challenging task. Two approaches, deterministic and Monte Carlo method has been widely used, but both methods have to undergo trade-off between speed and sampling rate. In this research, the new algorithm which exploits Bi-directional ray tracing technique, is suggested and implemented. The experimental program is focused specifically on parallelism on general-purpose GPUs. With the optimization, the result shows promising mark. | 36 pages
Recommended Citation
Pi, Jaewoo, "GPU-Acceleration of X-ray Photon Scattering Simulation" (2014). Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions). 3128.
https://commons.library.stonybrook.edu/stony-brook-theses-and-dissertations-collection/3128