530 search results - page 18 / 106 » Detection of Changes in Surveillance Videos |
ICPR
2004
IEEE
14 years 8 months ago
2004
IEEE
In this paper, we investigate the problem of automatic audio surveillance. This aspect of the surveillance, which extends the more investigated area of video surveillance, can be ...
PCM
2004
Springer
14 years 1 months ago
2004
Springer
Inspired by the human immune system, and in particular the negative selection algorithm, we propose a learning mechanism that enables the detection of abnormal activities. Three ty...
ICCV
2009
IEEE
15 years 19 days ago
2009
IEEE
Widespread use of surveillance cameras in offices and
other business establishments, pose a significant threat to
the privacy of the employees and visitors. The challenge of
int...
CVPR
2009
IEEE
15 years 2 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...
ISCAS
2008
IEEE
14 years 2 months ago
2008
IEEE
— An image sensor with focal plane based hardware acceleration of video compression is presented. The 90×90 pixel CMOS image sensor provides in-pixel processing of intensity cha...