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TIP
1998
159views more  TIP 1998»
13 years 4 months ago
An optimal quadtree-based motion estimation and motion-compensated interpolation scheme for video compression
Abstract—In this paper, we propose an optimal quadtree (QT)based motion estimator for video compression. It is optimal in the sense that for a given bit budget for encoding the d...
Guido M. Schuster, Aggelos K. Katsaggelos
ISCAS
2003
IEEE
185views Hardware» more  ISCAS 2003»
13 years 10 months ago
A semi-fragile object based video authentication system
This paper presents a semi-fragile object-based authentication solution for MPEG4 video. To protect the integrity of the video objects / sequences, a content-based watermark is em...
Dajun He, Qibin Sun, Qi Tian
VTC
2007
IEEE
149views Communications» more  VTC 2007»
13 years 11 months ago
An Iterative Detection Aided Irregular Convolutional Coded Wavelet Videophone Scheme Using Reversible Variable-Length Codes and
— In this paper, we characterize the achievable performance of a wavelet encoding-based videophone system, which further compresses and protects the wavelet-based video codec’s...
Anh Quang Pham, Jin Wang, Lie-Liang Yang, Lajos Ha...
CTW
2007
95views more  CTW 2007»
13 years 5 months ago
Sensemaking, safety, and cooperative work in the intensive care unit
Abstract Making sense of circumstances and situations is critical to coordinate cooperative work. Especially in process control domains, we may expect that effective and reliable o...
Sara Albolino, Richard Cook, Michael O'Connor
STOC
2009
ACM
159views Algorithms» more  STOC 2009»
14 years 5 months ago
Message passing algorithms and improved LP decoding
Linear programming decoding for low-density parity check codes (and related domains such as compressed sensing) has received increased attention over recent years because of its p...
Sanjeev Arora, Constantinos Daskalakis, David Steu...