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» Approximate Volumetric Reconstruction from Projected Images
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TMI
2008
142views more  TMI 2008»
15 years 4 months ago
Wavelet Based Noise Reduction in CT-Images Using Correlation Analysis
Abstract-- The projection data measured in computed tomography (CT) and, consequently, the slices reconstructed from these data are noisy. We present a new wavelet based structurep...
Anja Borsdorf, Rainer Raupach, Thomas Flohr, Joach...
ISBI
2006
IEEE
16 years 5 months ago
Atlas-assisted tomography: registration of a deformable atlas to compensate for limited-angle cone-beam trajectory
We present a method to improve the quality of cone-beam tomographic images computed from an intra-operative C-arm scan by adding information from an anatomical atlas. Limited rang...
Ofri Sadowsky, Krishnakumar Ramamurthi, Lotta Mari...
AMFG
2003
IEEE
122views Biometrics» more  AMFG 2003»
15 years 9 months ago
Is Face Recognition in Pictures Affected by the Center of Projection?
Recognition of unfamiliar faces can be severely impaired when two pictures of a face are taken from different camera distances. This effect of perspective transformation may be pr...
Chang Hong Liu
BILDMED
2007
141views Algorithms» more  BILDMED 2007»
15 years 5 months ago
Angiographic Assessment of Myocardial Perfusion Using Correlation Analysis
Abstract. Although angiography was originally designed as a morphological imaging modality, it is increasingly demanded to retrieve functional information from conventional angiogr...
Yu Deuerling-Zheng, Jan Boese, Stephan Achenbach, ...
ICIP
2008
IEEE
15 years 10 months ago
Compressed sensing for multi-view tracking and 3-D voxel reconstruction
Compressed sensing(CS) suggests that a signal, sparse in some basis, can be recovered from a small number of random projections. In this paper, we apply the CS theory on sparse ba...
Dikpal Reddy, Aswin C. Sankaranarayanan, Volkan Ce...