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ICDT
2009
ACM
148views Database» more  ICDT 2009»
14 years 8 months ago
Tight results for clustering and summarizing data streams
In this paper we investigate algorithms and lower bounds for summarization problems over a single pass data stream. In particular we focus on histogram construction and K-center c...
Sudipto Guha
CLEAR
2007
Springer
180views Biometrics» more  CLEAR 2007»
14 years 2 months ago
Joint Bayesian Tracking of Head Location and Pose from Low-Resolution Video
Abstract. This paper presents a visual particle filter for jointly tracking the position of a person and her head pose. The resulting information may be used to support automatic ...
Oswald Lanz, Roberto Brunelli
ICIAR
2005
Springer
14 years 1 months ago
A Steganographic Method for Digital Images Robust to RS Steganalysis
Digital images are increasingly being used as steganographic covers for secret communication. The Least Significant Bit (LSB) encoding is one of the most widely used methods for e...
André R. S. Marçal, Patricia R. Pere...
MMSEC
2004
ACM
145views Multimedia» more  MMSEC 2004»
14 years 1 months ago
Improving LSB steganalysis using marginal and joint probabilistic distributions
The goal of steganalysis is to search for the presence of hidden information in numerical contents. This paper is based on a previous LSB steganalysis scheme for digital images th...
Benoit Roue, Patrick Bas, Jean-Marc Chassery
PCM
2004
Springer
112views Multimedia» more  PCM 2004»
14 years 1 months ago
A Region Based Image Matching Method with Regularized SAR Model
Abstract. In this paper, we propose a new region-based image matching method to find the user defined regions in other images. We use color histogram and SAR (simultaneous autore...
Yaowei Wang, Weiqiang Wang, Yanfei Wang