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CVPR
2009
IEEE
16 years 7 months ago
Observe Locally, Infer Globally: a Space-Time MRF for Detecting Abnormal Activities with Incremental Updates
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...
Jaechul Kim (University of Texas at Austin), Krist...
SIGUCCS
2009
ACM
15 years 4 months ago
Automated lecture recording system with AVCHD camcorder and microserver
Although recording and streaming lecture videos is becoming popular, large-scale lecture recording is still a difficult task for many universities. Auto lecture recording systems ...
Takayuki Nagai
TIP
2010
153views more  TIP 2010»
14 years 10 months ago
A Versatile Model for Packet Loss Visibility and its Application to Packet Prioritization
In this paper, we propose a generalized linear model for video packet loss visibility that is applicable to different group-of-picture structures. We develop the model using three...
Ting-Lan Lin, Sandeep Kanumuri, Yuan Zhi, David Po...
ETRA
2006
ACM
198views Biometrics» more  ETRA 2006»
15 years 5 months ago
Perceptual attention focus prediction for multiple viewers in case of multimedia perceptual compression with feedback delay
Human eyes have limited perception capabilities. Only 2 degrees of our 180 degree vision field provide the highest quality of perception. Due to this fact the idea of perceptual a...
Oleg Komogortsev, Javed I. Khan
EUROGRAPHICS
2010
Eurographics
15 years 6 months ago
Articulated Billboards for Video-based Rendering
We present a novel representation and rendering method for free-viewpoint video of human characters based on multiple input video streams. The basic idea is to approximate the art...
Marcel Germann, Alexander Hornung, Richard Keiser,...