Publications related to Sub-band coding

A Unified Discretization Approach to Compute–Forward: From Discrete to Continuous Inputs

Michael Christoph Gastpar, Sung Hoon Lim, Adriano Pastore, Chen Feng

Compute–forward is a coding technique that enables receiver(s) in a network to directly decode one or more linear combinations of the transmitted codewords. Initial efforts focused on Gaussian channels and derived achievable rate regions via nested lattice ...

2022

Towards JPEG AIC part 3: visual quality assessment of high to visually lossless image coding

Touradj Ebrahimi, Evgeniy Upenik, Michela Testolina

Due to the increasing number of pictures captured and stored every day by and on digital devices, lossy image compression has become inevitable to limit the needed storage requirement. As a consequence, these compression methods might introduce some visual ...

SPIE2022

Signal-Adapted Tight Frames on Graphs

Dimitri Nestor Alice Van De Ville, Hamid Behjat

The analysis of signals on complex topologies modeled by graphs is a topic of increasing importance. Decompositions play a crucial role in the representation and processing of such information. Here, we propose a new tight frame design that is adapted to a ...

Institute of Electrical and Electronics Engineers2016

Towards Unconditional Tor-Like Anonymity

Christina Fragouli, László Czap, Iris Safaka

We design and evaluate a traffic anonymization protocol for wireless networks, aiming to protect against computationally powerful adversaries. Our protocol builds on recent key-generation techniques, that leverage intrinsic properties of the wireless toget ...

2015

ECMA-407: A New 3D audio codec implementation up to NHK 22.2

Marco Mattavelli, Claudio Paolo Alberti, Junaid Jameel Ahmad

ECMA-407, the first 3D audio standard worldwide, introduces a new concept of static models to lower bitrate coding, which may be equally applied with channels, channels and objects and Higher Order Ambisonics (HOA). Static models may either operate in time ...

2014

Distributed average consensus with quantization refinement

Pascal Frossard, Ye Pu, Effrosyni Kokiopoulou

We consider the problem of distributed average consensus in a sensor network where sensors exchange quantized information with their neighbors. We propose a novel quantization scheme that exploits the increasing correlation between the values exchanged by ...

Institute of Electrical and Electronics Engineers2013

Perceptual Coding of High-Quality Digital Audio

Christof Faller, Karlheinz Brandenburg

This paper introduces high-quality audio coding using psychoacoustic models. This technology is now abundant, with gadgets named after a standard (mp3 players) and the ability to play high-quality audio from literally billions of devices. The usual paradig ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Robust Log-Energy Estimation and its Dynamic Change Enhancement for In-car Speech Recognition

Hervé Bourlard, Weifeng Li

The log-energy parameter, typically derived from a full-band spectrum, is a critical feature commonly used in automatic speech recognition (ASR) systems. However, log-energy is difficult to estimate reliably in the presence of background noise. In this pap ...

Ieee-Inst Electrical Electronics Engineers Inc2013

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Sub-band coding

A Unified Discretization Approach to Compute–Forward: From Discrete to Continuous Inputs

Towards JPEG AIC part 3: visual quality assessment of high to visually lossless image coding

Usage of Hints on Coding-Based Summative Assessments

Signal-Adapted Tight Frames on Graphs

Rate-Distortion Evaluation for Two-Layer Coding Systems

Towards Unconditional Tor-Like Anonymity

ECMA-407: A New 3D audio codec implementation up to NHK 22.2

Distributed average consensus with quantization refinement

Perceptual Coding of High-Quality Digital Audio

Robust Log-Energy Estimation and its Dynamic Change Enhancement for In-car Speech Recognition

Graph Chatbot

Chat with Graph Search

Usage of Hints on Coding-Based Summative Assessments

Towards JPEG AIC part 3: visual quality assessment of high to visually lossless image coding

A Unified Discretization Approach to Compute–Forward: From Discrete to Continuous Inputs

Signal-Adapted Tight Frames on Graphs

ECMA-407: A New 3D audio codec implementation up to NHK 22.2

Towards Unconditional Tor-Like Anonymity

Rate-Distortion Evaluation for Two-Layer Coding Systems

Perceptual Coding of High-Quality Digital Audio

Distributed average consensus with quantization refinement

Robust Log-Energy Estimation and its Dynamic Change Enhancement for In-car Speech Recognition