TY - GEN
T1 - CT reconstruction based on improved total variation minimization
AU - Xu, Qiong
AU - Mou, Xuanqin
AU - Tang, Shaojie
AU - Zhang, Yanbo
PY - 2010
Y1 - 2010
N2 - Reconstruction algorithm based on total variation (TV) minimization has become a hot topic in CT field. In order to make a better balance between suppressing noise and preserving edge, an improved variation is proposed in this paper. An anisotropic strategy is developed to effectively preserve the edges of imaging objects. Simultaneously, the unity weight in the original variation is substituted by an amplitude dependent weight to suppress the smaller variations, which arise from noise effect with a higher possibility. Numerical simulations validated that the CT reconstruction based on the improved variation has a better reconstruction performance as compared to its original counterpart.
AB - Reconstruction algorithm based on total variation (TV) minimization has become a hot topic in CT field. In order to make a better balance between suppressing noise and preserving edge, an improved variation is proposed in this paper. An anisotropic strategy is developed to effectively preserve the edges of imaging objects. Simultaneously, the unity weight in the original variation is substituted by an amplitude dependent weight to suppress the smaller variations, which arise from noise effect with a higher possibility. Numerical simulations validated that the CT reconstruction based on the improved variation has a better reconstruction performance as compared to its original counterpart.
UR - https://www.scopus.com/pages/publications/79960288926
U2 - 10.1109/NSSMIC.2010.5874403
DO - 10.1109/NSSMIC.2010.5874403
M3 - 会议稿件
AN - SCOPUS:79960288926
SN - 9781424491063
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 3241
EP - 3244
BT - IEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010
T2 - 2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010
Y2 - 30 October 2010 through 6 November 2010
ER -