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ICCV
2001
IEEE
14 years 11 months ago
Topology Free Hidden Markov Models: Application to Background Modeling
Hidden Markov Models (HMMs) are increasingly being used in computer vision for applications such as: gesture analysis, action recognition from video, and illumination modeling. Th...
Bjoern Stenger, Visvanathan Ramesh, Nikos Paragios...
ECCV
2006
Springer
14 years 11 months ago
Cyclostationary Processes on Shape Spaces for Gait-Based Recognition
Abstract. We present a geometric and statistical approach to gaitbased human recognition. The novelty here is to consider observations of gait, considered as planar silhouettes, to...
David Kaziska, Anuj Srivastava
ICIP
2004
IEEE
14 years 11 months ago
Constant quality rate-control for video encoding based on activity segmentation
An enhanced, off-line, segment-based rate control approach is proposed for controlling the distortion variation across successive segments of a video sequence when encoding with s...
Luk Overmeire, Fabio Verdicchio, Joeri Barbarien, ...
ICML
2006
IEEE
14 years 10 months ago
Algorithms for portfolio management based on the Newton method
We experimentally study on-line investment algorithms first proposed by Agarwal and Hazan and extended by Hazan et al. which achieve almost the same wealth as the best constant-re...
Amit Agarwal, Elad Hazan, Satyen Kale, Robert E. S...
CHI
2007
ACM
14 years 10 months ago
Patterns of empathy in online communication
This article presents an investigation of empathy within an online community for older people (SeniorNet). Qualitative content analysis of 400 messages from a discussion board abo...
Ulrike Pfeil, Panayiotis Zaphiris