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INFORMATICALT
2010
66views more  INFORMATICALT 2010»
13 years 6 months ago
Forward Adaptation of Novel Semilogarithmic Quantizer and Lossless Coder for Speech Signals Compression
In this paper new semilogarithmic quantizer for Laplacian distribution is presented. It is simpler than classic A-law semilogarithmic quantizer since it has unit gain around zero. ...
Zoran H. Peric, Milan S. Savic, Milan R. Dincic, D...
ICMCS
2006
IEEE
121views Multimedia» more  ICMCS 2006»
14 years 1 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
ICMCS
2006
IEEE
149views Multimedia» more  ICMCS 2006»
14 years 1 months ago
Video Texture and Motion based Modeling of Rate Variability-Distortion (VD) Curves of I, P, and B Frames
We examine the bit rate variability-distortion (VD) curve of I, P, and B frames of MPEG-4 VBR encoded video sequences. We show that the concave VD curve shape at high compression ...
Geert Van Der Auwera, Martin Reisslein, Lina J. Ka...
ICIP
2005
IEEE
14 years 9 months ago
Bit allocation and quantizer optimization in multiple description coding with oversampled filterbanks
Multiple Description coding has been recently proposed for images and video transmission in packet erasure channels because of its good loss recovery capability. In this paper, we...
Riccardo Bernardini, Luca Celetto, Roberto Rinaldo...
ICIP
2003
IEEE
14 years 9 months ago
Spread transform watermarking for video sources
Spread Transform (ST) is a quantization watermarking algorithm in which vectors of the wavelet coefficients of a host work are quantized, using one of two dithered quantizers, to ...
John Earl, Nick G. Kingsbury