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PR
2007
91views more  PR 2007»
13 years 11 months ago
Image reconstruction from limited range projections using orthogonal moments
A set of orthonormal polynomials is proposed for image reconstruction from projection data. The relationship between the projection moments and image moments is discussed in detai...
Huazhong Shu, Jian Zhou, Guo-Niu Han, Limin Luo, J...
TMI
1998
175views more  TMI 1998»
13 years 11 months ago
A Harmonic Decomposition Reconstruction Algorithm for Spatially-Varying Focal Length Collimators
—Spatially varying focal length fan-beam collimators can be used in single photon emission computed tomography to improve detection efficiency and to reduce reconstruction artif...
Jiangsheng You, Zhengrong Liang, Shanglian Bao
SIAMSC
2008
113views more  SIAMSC 2008»
13 years 11 months ago
Limited Data X-Ray Tomography Using Nonlinear Evolution Equations
A novel approach to the X-ray tomography problem with sparse projection data is proposed. Non-negativity of the X-ray attenuation coefficient is enforced by modelling it as max{(x)...
Ville Kolehmainen, Matti Lassas, Samuli Siltanen
WSCG
2004
148views more  WSCG 2004»
14 years 28 days ago
Ultrasonic Refractive Index Tomography
Ultrasonic computed tomography (UCT) is one of the methods capable of tissue characterization. It is expected to provide not only a quantitative image but also diagnostic informat...
Chuchart Pintavirooj, Adisak Romputtal, Akkapob Ng...