15 search results - page 2 / 3 » Hidden Markov Models for Optical Flow Analysis in Crowds |
CVPR
2009
IEEE
14 years 12 months ago
2009
IEEE
We propose a space-time Markov Random Field (MRF)
model to detect abnormal activities in video. The nodes in
the MRF graph correspond to a grid of local regions in the
video fra...
FGR
2006
IEEE
13 years 11 months ago
2006
IEEE
Recognizing human action from image sequences is an active area of research in computer vision. In this paper, we present a novel method for human action recognition from image se...
CEE
2010
13 years 5 months ago
2010
A motion field generation algorithm using block matching of edge-flag histograms has been developed aiming at its application to motion recognition systems. Use of edge flags inste...
ICPR
2006
IEEE
13 years 11 months ago
2006
IEEE
In this paper, we present a novel method for human action recognition from any arbitrary view image sequence that uses the Cartesian component of optical flow velocity and human ...
SIGMOD
2008
ACM
14 years 5 months ago
2008
ACM
A major problem in detecting events in streams of data is that the data can be imprecise (e.g. RFID data). However, current state-ofthe-art event detection systems such as Cayuga ...