Now showing items 31-35 of 35
Spatio-Temporal Motion Estimation for Respiratory-Correlated Imaging of the Lungs
(American Association of Physicists in Medicine, 2011)
Purpose: Four-dimensional computed tomography (4D CT) can provide patient-specific motion information for radiotherapy planning and delivery. Motion estimation in 4D CT is challenging due to the reduced image quality and ...
Line Filtering for Surgical Tool Localization in 3D Ultrasound Images
We present a method for automatic surgical tool localization in 3D ultrasound images based on line ltering, voxel classi cation and model tting. A possible application is to provide assistance for biopsy needle or ...
Robust Non-Rigid Registration of 2D and 3D Graphs
We present a new approach to matching graphs embedded in R2 or R3. Unlike earlier methods, our approach does not rely on the similarity of local appearance features, does not require an initial alignment, can handle partial ...
Neuromuscular fiber segmentation using particle filtering and discrete optimization
We present an algorithm to segment a set of parallel, intertwined and bifurcating bers from 3D images, targeted for the identi cation of neuronal bers in very large sets of 3D confocal microscopy images. The method ...
A Multi-Frequency Approach to Increase the Native Resolution of Ultrasound Images
In ultrasound (US), a natural competition exists between the resolution of the image and the depth-of-field (DOF) into the medium, competition which is difficult to overcome with current US probe. Using large bandwidth ...