23 search results - page 4 / 5 » Multiresolution Hidden Markov Chain Model and Unsupervised I... |
ICIP
2008
IEEE
14 years 7 months ago
2008
IEEE
This paper presents a content-based approach for temporal segmentation of videos. Tracked objects are characterized by their 2D trajectories which are used in a meaningful way to ...
ICIP
2005
IEEE
13 years 11 months ago
2005
IEEE
In this paper, we propose a novel technique for modelbased recognition of complex object motion trajectories using Hidden Markov Models (HMM). We build our models on Principal Com...
NIPS
2001
13 years 6 months ago
2001
This paper proposes an approach to classification of adjacent segments of a time series as being either of classes. We use a hierarchical model that consists of a feature extract...
ICIP
2003
IEEE
14 years 7 months ago
2003
IEEE
We present algorithms for automatic feature selection for unsupervised structure discovery from video sequences. Feature selection in this scenario is hard because of the absence ...
ISBI
2006
IEEE
14 years 6 months ago
2006
IEEE
In this paper, we use marked point processes to perform an unsupervised extraction of the coronary tree from 2D X-ray angiography. These processes provide a rigorous framework bas...