Title :
Synthetic CT noise emulation in the raw data domain
Author :
Benson, Thomas M. ; De Man, Bruno K B
Author_Institution :
GE Global Res., Niskayuna, NY, USA
fDate :
Oct. 30 2010-Nov. 6 2010
Abstract :
Synthetic CT noise emulation in the raw data domain is reported. A method that synthetically adds noise directly in the raw data domain (i.e., before the negative log and associated pre processing) is presented. Initial results are obtained for a noise simulation method that lowers the effective tube current for a CT data set while considering quantum noise, electronic noise, bowtie filtration, and kVp. Focus is on simulation results where the control is more on the parameters generating many realizations.
Keywords :
computerised tomography; data analysis; filtering theory; image reconstruction; medical image processing; quantum noise; CT data set; X-ray computed tomography scans; bowtie filtration; electronic noise; image reconstruction; quantum noise; raw data domain; synthetic CT noise emulation; Approximation methods; Computed tomography; Data models; Electron tubes; Emulation; Noise; Photonics;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-9106-3
DOI :
10.1109/NSSMIC.2010.5874386
