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PCM
2001
Springer
110views Multimedia» more  PCM 2001»
15 years 9 months ago
A Synchronous Fragile Watermarking Scheme for Erroneous Q-DCT Coefficients Detection
In video communications over error introducing channels, error concealment techniques are widely applied in video decoder for good subjective images output. However, a damaged MB ...
Minghua Chen, Yun He
APNOMS
2006
Springer
15 years 9 months ago
Security Approaches for Cluster Interconnection in a Wireless Sensor Network
Abstract. A wireless sensor network is a collection of devices limited in lowpowered batteries, processing, communication bandwidth capabilities and low memory availability. Due to...
Alexandre Gava Menezes, Carlos Becker Westphall
CSDA
2008
86views more  CSDA 2008»
15 years 5 months ago
Transformations for semi-continuous data
Semi-continuous data arise in many applications where naturally-continuous data become contaminated by the data generating mechanism. The resulting data contain several values tha...
Galit Shmueli, Wolfgang Jank, Valerie Hyde
AROBOTS
2004
145views more  AROBOTS 2004»
15 years 5 months ago
A Paradigm for Dynamic Coordination of Multiple Robots
In this paper, we present a paradigm for coordinating multiple robots in the execution of cooperative tasks. The basic idea in the paper is to assign to each robot in the team, a ...
Luiz Chaimowicz, Vijay Kumar, Mario Fernando Monte...
CISS
2008
IEEE
15 years 11 months ago
Distributed detection in the presence of frequency offset and phase shift
— In this paper, we study the problem of distributed detection in the presence of unknown carrier frequency offset (CFO) and initial phase, the issue we encounter in the emerging...
Tao Wu, Qi Cheng