148 search results - page 20 / 30 » Multiple active contour models based on the EM algorithm |
SPIEVIP
2010
13 years 10 months ago
2010
In video surveillance, automatic methods for scene understanding and activity modeling can exploit the high redundancy of object trajectories observed over a long period of time. ...
KDD
2007
ACM
14 years 8 months ago
2007
ACM
Accurate localization of mobile objects is a major research problem in sensor networks and an important data mining application. Specifically, the localization problem is to deter...
KDD
2010
ACM
13 years 11 months ago
2010
ACM
We propose an online topic model for sequentially analyzing the time evolution of topics in document collections. Topics naturally evolve with multiple timescales. For example, so...
SAC
2010
ACM
13 years 2 months ago
2010
ACM
The label switching problem is caused by the likelihood of a Bayesian mixture model being invariant to permutations of the labels. The permutation can change multiple times betwee...
ISBI
2009
IEEE
14 years 2 months ago
2009
IEEE
An accurate and reproducible segmentation of the mitral valve annulus from 3D ultrasound is useful to clinicians and researchers in applications such as pathology diagnosis and mi...