Concept

Digital video

Publications associées (230)

Blind Audio-Visual Source Separation based on Sparse Redundant Representations

Pierre Vandergheynst, Rémi Gribonval, Gianluca Monaci, Anna Llagostera Casanovas

In this paper we propose a novel method which is able to detect and separate audio-visual sources present in a scene. Our method exploits the correlation between the video signal captured with a camera and a synchronously recorded one-microphone audio trac ...

2010

Method and system for combining video sequences with spatio-temporal alignment

Martin Vetterli, Serge Ayer

Given two video sequences, a composite video sequence can be generated which includes visual elements from each of the given sequences, suitably synchronized and represented in a chosen focal plane. For example, given two video sequences with each showing ...

2010

Method and system for combining video sequences with spatio-temporal alignment

Martin Vetterli, Serge Ayer

2010

MPEG Reconfigurable Video Coding

Marco Mattavelli

Abstract The currentmonolithic and lengthy scheme behind the standardization and the design of new video coding standards is becoming inappropriate to satisfy the dynamism and changing needs of the video coding community. Such a scheme and specification fo ...

Springer2010

Load Response of Periodontal Ligament: Assessment of Fluid Flow, Compressibility, and Effect of Pore Pressure

John Botsis, Marzio Bergomi, Aïssa Mellal

The periodontal ligament (PDL) functions both in tension and in compression. The presence of an extensive vascular network inside the tissue suggests a significant contribution of the fluid phase to the mechanical response. This study examined the load res ...

2010

Fast Hand Gesture Recognition based on Saliency Maps: An Application to Interactive Robotic Marionette Playing

Mostafa Ajallooeian

In this paper, we propose a fast algorithm for gesture recognition based on the saliency maps of visual attention. A tuned saliency-based model of visual attention is used to find potential hand regions in video frames. To obtain the overall movement of th ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Reconfigurable Video Coding : Objectives and Technologies

Marco Mattavelli, Christophe Lucarz, Ihab Mostafa Amin Mohamed Amer

The main objective of the MPEG Reconfigurable Video Coding (RVC) standard is to establish a framework for a more flexible usage of standard video coding technology. The framework not only supports multiple standards and new coding configurations, but also ...

IEEE2009

Efficient video coding in H.264/AVC by using audio-visual information

Touradj Ebrahimi, Jong Seok Lee

This paper proposes an efficient video coding method which utilizes audio-visual information, based on the observation that sound-emitting regions in a video sequence attract observer’s attention. The regions responsible for the sound are identified by an ...

2009

Network coding of rateless video in streaming overlays

Pascal Frossard, Nikolaos Thomos

We investigate the problem of collaborative video streaming in overlay networks. We exploit path and source diversity, as well as basic processing capabilities of network nodes in order to increase the overall throughput and improve the video quality at th ...

2009

Towards a Multi-Granular RVC VTL: A Case Study of CAL Transformations on the ISO/IEC MPEG Fixed Point IDCT

Ihab Mostafa Amin Mohamed Amer

Recent advances in digital video hardware, software and coding standards have led to a wide variety of digital video products. However, such continuous evolution leads to the necessity of regular replacements of the available multimedia devices. To avoid t ...

2009

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