TY - GEN
T1 - Towards a high-resolution local tomography using statistical iterative reconstruction
AU - Rashed, Essam A.
AU - Toda, Hiroyuki
AU - Sera, Toshihiro
AU - Tsuchiyama, Akira
AU - Nakano, Tsukasa
AU - Uesugi, Kentaro
AU - Kudo, Hiroyuki
PY - 2011/1/1
Y1 - 2011/1/1
N2 - Synchrotron radiation (SR) x-ray micro-CT is an effective method for high-resolution imaging of small objects with several applications in biology and industry. However, the detector field of view is tiny, which limits the sample size to a few millimeters. When the sample size is larger than the limited field of view, reconstructed images, using conventional methods, known to suffer from DC-shift and low-frequency artifacts. This problem is known as local tomography or interior problem. In this paper we introduce a statistical iterative image reconstruction method to eliminate image artifacts produced from local tomography. The proposed method can be used in several SR imaging applications to enable a high resolution of the scanned object while preserving the image quality from artifacts produced due to the local tomography problem.
AB - Synchrotron radiation (SR) x-ray micro-CT is an effective method for high-resolution imaging of small objects with several applications in biology and industry. However, the detector field of view is tiny, which limits the sample size to a few millimeters. When the sample size is larger than the limited field of view, reconstructed images, using conventional methods, known to suffer from DC-shift and low-frequency artifacts. This problem is known as local tomography or interior problem. In this paper we introduce a statistical iterative image reconstruction method to eliminate image artifacts produced from local tomography. The proposed method can be used in several SR imaging applications to enable a high resolution of the scanned object while preserving the image quality from artifacts produced due to the local tomography problem.
UR - http://www.scopus.com/inward/record.url?scp=84858638319&partnerID=8YFLogxK
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U2 - 10.1109/NSSMIC.2011.6153816
DO - 10.1109/NSSMIC.2011.6153816
M3 - Conference contribution
SN - 9781467301183
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 4253
EP - 4256
BT - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2011
Y2 - 23 October 2011 through 29 October 2011
ER -