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Adaptive Joint Playout Buffer and FEC Adjustment for Internet Telephony

Publications associées (34)

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Watermarked 3D Mesh Quality Assessment

Touradj Ebrahimi, Elisa Drelie Gelasca

This paper addresses the problem of assessing distortions produced by watermarking 3D meshes. In particular, a new methodology for subjective evaluation of the quality of 3D objects is proposed and implemented. Two objective metrics derived from measures o ...

2007

Ecological distance use relevance in Mantel tests: application to goat breeds in the Alps

Stéphane Joost, Régis Caloz

In: Sustainable Conservation of Animal Genetic Resources in Marginal Rural Areas: Integrating Molecular Genetics, Socio-Economics and Geostatistical Approaches, ECONOGENE project - QLK5-CT2001 - 02461, Progress Report Year 3, European Union Project, Qualit ...

2004

Delay aspects in Internet telephony

Catherine Boutremans

In this work, we address the transport of high quality voice over the Internet with a particular concern for delays. Transport of interactive audio over IP networks often suffers from packet loss and variations in the network delay (jitter). Forward Error ...

EPFL2003

A WebGIS application to assist farms georeferencing

Stéphane Joost, Régis Caloz

In: Sustainable Conservation of Animal Genetic Resources in Marginal Rural Areas: Integrating Molecular Genetics, Socio-Economics and Geostatistical Approaches, ECONOGENE project - QLK5-CT2001-02461, Progress Report Year 2. European Union Project, Quality ...

2003

Measuring Colourfulness in Natural Images

Sabine Süsstrunk, David Hasler

We want to integrate colourfulness in an image quality evaluation framework. This quality framework is meant to evaluate the perceptual impact of a compression algorithm or an error prone communication channel on the quality of an image. The image might go ...

2003

Adaptive joint playout buffer and FEC adjustement for Internet Telephony

Jean-Yves Le Boudec, Catherine Boutremans

We develop a joint playout buffer and Forward Error Correction (FEC) adjustment scheme for Internet Telephony that incorporates the impact of end-to-end delay on the perceived audio quality. We show that it provides a better quality than the adjustment sch ...

2002

Long-Term Evaluation vs Short-Term Measurements : the Case of the Riddes Bridges

Olivier Burdet

The case presented in the paper shows how effective measurements can be made to help in the assessment of an important structure in a relatively short time frame using a combination of electronic inclinometers, temperature sensors and hydrostatic leveling. ...

fib, Fib Congress 2002, Osaka2002

Ratingsystem für Immobilien

Philippe Thalmann

Technical and economic system of analysis (quality of location, position in business cycle) allowing to assess the risks of a property. ...

2002

A Systems Perspective on the Quality Description of Software Components

Alain Wegmann, Otto Preiss

In this paper we present our motivations for proposing of a generic model for the description of quality attributes of software artifacts, in particular suited to software components. The conceptual ideas for our quality description model are derived from ...

2002

Adaptive Delay Aware Error Control for Internet Telephony

Jean-Yves Le Boudec, Catherine Boutremans

Forward Error Correction copes with packet losses, but at the expense of an increase of the end-to-end delay. By failing to take this into account, existing error control schemes for audio often lead to end-to-end delays larger than 150 ms, which has an im ...

2001