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DCC
2007
IEEE
14 years 9 months ago
Multiple-Description Coding by Dithered Delta-Sigma Quantization
We address the connection between the multiple-description (MD) problem and Delta-Sigma quantization. The inherent redundancy due to oversampling in Delta-Sigma quantization, and ...
Jan Østergaard, Ram Zamir
ICMCS
2006
IEEE
121views Multimedia» more  ICMCS 2006»
14 years 3 months ago
An Optimal Non-Uniform Scalar Quantizer for Distributed Video Coding
In this paper, we propose a novel algorithm to design an optimal non-uniform scalar quantizer for distributed video coding, which aims at achieving a coding rate close to joint co...
Bo Wu, Xun Guo, Debin Zhao, Wen Gao, Feng Wu
PCM
2004
Springer
112views Multimedia» more  PCM 2004»
14 years 3 months ago
A Study on the Quantization Scheme in H.264/AVC and Its Application to Rate Control
Compared with previous video coding standards, H.264/AVC employs a division-free quantization scheme. The relation between quantization parameter and quantization step changes from...
Siwei Ma, Wen Gao, Debin Zhao, Yan Lu
TSP
2008
92views more  TSP 2008»
13 years 9 months ago
Distributed Structures, Sequential Optimization, and Quantization for Detection
Abstract--In the design of distributed quantization systems one inevitably confronts two types of constraints--those imposed by a distributed system's structure and those impo...
Michael A. Lexa, Don H. Johnson
TSP
2008
103views more  TSP 2008»
13 years 9 months ago
Distributed Adaptive Quantization for Wireless Sensor Networks: From Delta Modulation to Maximum Likelihood
Abstract-- We consider distributed parameter estimation using quantized observations in wireless sensor networks where due to bandwidth constraint, each sensor quantizes its local ...
Jun Fang, Hongbin Li