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ICPR
2002
IEEE
14 years 11 months ago
Quasi-Invariants for Human Action Representation and Recognition
Although human action recognition has been the subject of much research in the past, the issue of viewpoint invariance has received scarce attention. In this paper, we present an ...
Vasu Parameswaran, Rama Chellappa
MICCAI
2005
Springer
14 years 10 months ago
A Velocity-Dependent Model for Needle Insertion in Soft Tissue
Models that predict the soft tissue deformation caused by needle insertion could improve the accuracy of procedures such as brachytherapy and needle biopsy. Prior work on needle in...
Jessica R. Crouch, Chad M. Schneider, Josh Wainer,...
ICML
2009
IEEE
14 years 10 months ago
Sparse Gaussian graphical models with unknown block structure
Recent work has shown that one can learn the structure of Gaussian Graphical Models by imposing an L1 penalty on the precision matrix, and then using efficient convex optimization...
Benjamin M. Marlin, Kevin P. Murphy
ISBI
2008
IEEE
14 years 10 months ago
Real-time segmentation of 4D ultrasound by Active Geometric Functions
Four-dimensional ultrasound based on matrix phased array transducers can capture the complex 4D cardiac motion in a complete and real-time fashion. However, the large amount of in...
Qi Duan, Elsa D. Angelini, Shunichi Homma, Andrew ...
CVPR
2009
IEEE
14 years 7 months ago
Recognizing human group activities with localized causalities
The aim of this paper is to address the problem of recognizing human group activities in surveillance videos. This task has great potentials in practice, however was rarely studie...
Ashraf A. Kassim, Bingbing Ni, Shuicheng Yan