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ISBI
2004
IEEE
13 years 14 days ago
Volumetric Harmonic Brain Mapping
Brain surface conformal mapping research has been successful and this motivates our more general investigation of 3D volumetric brain harmonic mapping. By transforming the full 3D...
Yalin Wang, Xianfeng Gu, Tony F. Chan, Paul M. Tho...
ISBI
2004
IEEE
13 years 14 days ago
Reconstruction of 2D Pet Data with Monte Carlo Generated Natural Pixels
Abstract-In discrete detector PET, natural pixels are image basis functions calculated from responses of detector pairs. By using reconstruction with natural pixels the discretizat...
Charles L. Byrne, Stefaan Vandenberghe, Edward J. ...
ISBI
2004
IEEE
13 years 14 days ago
Quasi-Maximum Likelihood Blind Deconvolution of Images Acquired Through Scattering Media
We address the problem of restoration of images obtained through a scattering medium. We present an efficient quasimaximum likelihood blind deconvolution approach based on the fas...
Michael M. Bronstein, Alexander M. Bronstein, Yeho...
ISBI
2004
IEEE
13 years 14 days ago
Modelling Noise-Induced Fibre-Orientation Error in Diffusion-Tensor MRI
Diffusion-Tensor MRI can be used to measure fibre orientation within the brain. Several studies have proposed methods to reconstruct known white matter fibre tracts in the brain. ...
Philip A. Cook, Daniel C. Alexander, Geoffrey J. M...
ISBI
2004
IEEE
13 years 14 days ago
A Hierarchical Algorithm for Fast Backprojection in Helical Cone-Beam Tomography
Existing algorithms for exact helical cone beam (HCB) tomographic reconstruction involve a 3-D backprojection step, which dominates the the computational cost of the algorithm. We...
Jeffrey Brokish, Yoram Bresler
ISBI
2004
IEEE
13 years 14 days ago
A Novel Closed Form Solution for Ultrasound Calibration
This paper describes a new robust method for calibration of ultrasound probe (2D/3D). Prior to calibration, a position sensor is attached to the probe for tagging each image/volum...
Emad Boctor, Anand Viswanathan, Michael A. Choti, ...
ISBI
2004
IEEE
13 years 14 days ago
Prompt Gamma-Ray Imaging for Small Animals
A new imaging approach has been identified and studied in a preliminary way by simulation. The new approach is prompt gamma-ray imaging (PGI) and it is suggested for use on small ...
Robin Gardner, Libai Xu
ISBI
2004
IEEE
13 years 14 days ago
Surface Matching Algorithms for Computer Aided Reconstructive Plastic Surgery
High energy traumatic impact of the craniofacial skeleton is an inevitable consequence of today's fast paced society. The work presented in this paper leverages recent advanc...
Suchendra M. Bhandarkar, Ananda S. Chowdhury, Yaro...
ISBI
2004
IEEE
13 years 14 days ago
Intermodality Nonrigid Breast-Image Registration
We investigated nonrigid co-registration of PET and MR breast images to improve diagnostic specificity in difficult-to-interpret mammograms, and ultimately to avoid biopsy. A defo...
Ioana Coman, Andrzej Król, David H. Feiglin...
ISBI
2004
IEEE
13 years 14 days ago
Outlier Detection for Robust Region-Based Estimation of the Hemodynamic Response Function in Event-Related fMRI
In functional Magnetic Resonance Imaging (fMRI), the Hemodynamic Response Function (HRF) represents the impulse response of the neurovascular system. Its identification is essenti...
Philippe Ciuciu, Alexis Roche, Jérôme...
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