Title :
Effect of the data constraint on few-view, fan-beam CT image reconstruction by TV minimization
Author :
Sidky, Emil Y. ; Kao, Chien-Min ; Pan, Xiaochuan
Author_Institution :
Dept. of Radiol., Chicago Univ., IL
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
Application of the total variation (TV) minimization algorithm is applied to image reconstruction in few-view fan-beam computed tomography (CT). In particular, the impact of noise is investigated for different levels of tolerance on the data error. The artifacts due to noise are seen to vary dramatically in spatial frequency as the data error tolerance changes.
Keywords :
computerised tomography; image reconstruction; medical image processing; minimisation; CT image reconstruction; TV minimization; artifacts; data constraint; data error tolerance; few-view fan-beam computed tomography; total variation minimization algorithm; Biomedical imaging; Computed tomography; Frequency; Image reconstruction; Imaging phantoms; Minimization methods; Noise level; Nuclear and plasma sciences; Pixel; TV;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.354372
