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DCC
2000
IEEE
13 years 9 months ago
RD-Optimization of Hierarchical Structured Adaptive Vector Quantization for Video Coding
This paper contains two contributions to very-low-bitrate video coding. First, we show that in contrast to common practice incremental techniques for rate-distortion optimization ...
Marcel Wagner, Dietmar Saupe
TASLP
2002
87views more  TASLP 2002»
13 years 4 months ago
A new audio coding scheme using a forward masking model and perceptually weighted vector quantization
This paper presents a new audio coder that includes two techniques to improve the sound quality of the audio coding system. First, a forward masking model is proposed. This model e...
Yuan-Hao Huang, Tzi-Dar Chiueh
ICMCS
2006
IEEE
159views Multimedia» more  ICMCS 2006»
13 years 11 months ago
Image Vector Quantization Indices Recovery using Lagrange Interpolation
Vector quantization (VQ) is an efficient coding algorithm due to its fast decoding efficiency. Indices of VQ will be lost during the transmission because of the signal interferenc...
Yung-Gi Wu, Chia-Hao Wu
ICC
2009
IEEE
101views Communications» more  ICC 2009»
13 years 3 months ago
Using Limited Feedback in Power Allocation Design for a Two-Hop Relay OFDM System
In this paper, we study power allocation (PA) in a single-relay OFDM system with limited feedback. We propose a PA scheme that uses a codebook of quantized PA vectors designed offl...
Mahdi Hajiaghayi, Min Dong, Ben Liang
TIP
1998
95views more  TIP 1998»
13 years 4 months ago
VQ-adaptive block transform coding of images
—Two new design techniques for adaptive orthogonal block transforms based on vector quantization (VQ) codebooks are presented. Both techniques start from reference vectors that a...
Hakan Caglar, C. Sinan Güntürk, Bül...