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TCOM
2008
66views more  TCOM 2008»
14 years 9 months ago
Lattice codes for amplified direct-detection optical systems
Theories of shaping for lattice codes have been developed for systems (optical or non-optical) using coherent detection with additive white Gaussian noise (AWGN) and for direct-det...
Wei Mao, Joseph M. Kahn
MVA
2002
177views Computer Vision» more  MVA 2002»
14 years 9 months ago
Global Motion Estimation Based on the Constrained Spatio-temporal Gradient Method in Model-Based Coding
For global motion estimation in model-based coding, this paper proposes a constrained spatio-temporal gradient method using contour information. To overcome the local minimum prob...
Young Wook Sohn, Doo-Hyun Kim, Dong-O Kim, Rae-Hon...
ICASSP
2011
IEEE
14 years 1 months ago
Analog joint source-channel coding in Rayleigh fading channels
We consider discrete-time all-analog-processing joint sourcechannel coding, using non-linear spiral-like curves. We assume a Rayleigh channel, where the receiver may employ or not...
Glauber Gomes de Oliveira Brante, Richard Demo Sou...
ICIP
2002
IEEE
15 years 11 months ago
Contrast based quantization and rate control for wavelet coded images
A visually-optimal quantization and rate-control strategy based on results of recent contrast sensitivity and suprathreshold summation experiments is proposed. At suprathreshold c...
Damon M. Chandler, Sheila S. Hemami
DATE
2007
IEEE
138views Hardware» more  DATE 2007»
15 years 4 months ago
An ADC-BiST scheme using sequential code analysis
This paper presents a built-in self-test (BiST) scheme for analog to digital converters (ADC) based on a linear ramp generator and efficient output analysis. The proposed analysi...
Erdem Serkan Erdogan, Sule Ozev