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PRL
2006
207views more  PRL 2006»
13 years 7 months ago
On-line trajectory clustering for anomalous events detection
In this paper we propose a trajectory clustering algorithm suited for video surveillance systems. Trajectories are clustered on-line, as the data are collected, and clusters are o...
Claudio Piciarelli, Gian Luca Foresti
MM
2009
ACM
252views Multimedia» more  MM 2009»
14 years 1 months ago
Localizing volumetric motion for action recognition in realistic videos
This paper presents a novel motion localization approach for recognizing actions and events in real videos. Examples include StandUp and Kiss in Hollywood movies. The challenge ca...
Xiao Wu, Chong-Wah Ngo, Jintao Li, Yongdong Zhang
DAGSTUHL
2004
13 years 8 months ago
Local Pattern Detection and Clustering
Abstract. The starting point of this work is the definition of local pattern detection given in [10] as the unsupervised detection of local regions with anomalously high data densi...
Frank Höppner
CRV
2007
IEEE
159views Robotics» more  CRV 2007»
14 years 1 months ago
Automatic Detection and Clustering of Actor Faces based on Spectral Clustering Techniques
We describe a video indexing system that aims at indexing large video files in relation to the presence of similar faces. The detection of near-frontal view faces is done with a c...
Samuel Foucher, Langis Gagnon
JMLR
2012
11 years 9 months ago
Consistency and Rates for Clustering with DBSCAN
We propose a simple and efficient modification of the popular DBSCAN clustering algorithm. This modification is able to detect the most interesting vertical threshold level in a...
Bharath K. Sriperumbudur, Ingo Steinwart