295 search results - page 28 / 59 » Detecting Uncommon Trajectories |
ICIP
2010
IEEE
13 years 6 months ago
2010
IEEE
Compared to other approaches that analyze object trajectories, we propose to detect anomalous video events at three levels considering spatiotemporal context of video objects, i.e...
ICIP
2010
IEEE
13 years 6 months ago
2010
IEEE
This paper proposes the use of feature tracks for the detection of concepts in video, particularly dynamic concepts. Feature tracks are defined as sets of local interest points fo...
ICASSP
2011
IEEE
13 years 17 days ago
2011
IEEE
Many practical data streams are typically composed of several states known as regimes. In this paper, we invoke phase space reconstruction methods from non-linear time series and ...
ICIP
2009
IEEE
13 years 6 months ago
2009
IEEE
Night surveillance is a challenging task because of low brightness, low contrast, low Signal to Noise Ratio (SNR) and low appearance information. Most existing models for night su...
ICPR
2006
IEEE
14 years 10 months ago
2006
IEEE
This paper presents an approach for indexing a large set of videos by considering the dynamic behaviour of local visual features along the sequences. The proposed concept is based...