Publications associées à On Wyner-Ziv networks

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Approaching the Rate-Distortion Limit by spatial Coupling with Belief Propagation and Decimation

Nicolas Macris, Vahid Aref, Marc Vuffray

We investigate an encoding scheme for lossy compression based on spatially coupled Low-Density Generator-Matrix codes. The degree distributions are regular, or are Poisson on the code-bit side and check-regular which allows use for any compression rate. Th ...

2013

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

Evaluation of Side Information Effectiveness in Distributed Video Coding

Thomas Maugey

The rate-distortion performance of a distributed video coding system strongly depends on the characteristics of the side information. One could naively think that the best side information is the one with the largest PSNR with respect to the original corre ...

Institute of Electrical and Electronics Engineers2013

Lossy source coding via spatially coupled LDGM ensembles

Rüdiger Urbanke, Nicolas Macris, Vahid Aref, Marc Vuffray

We study a new encoding scheme for lossy source compression based on spatially coupled low-density generatormatrix codes. We develop a belief-propagation guided-decimation algorithm, and show that this algorithm allows to approach the optimal distortion of ...

Ieee2012

On Source Coding for Distributed Temperature Sensing with Shift-Invariant Geometries

Robert Konsbruck

We study the source coding problem in sensor networks deployed to monitor the evolution of spatio-temporal temperature distributions. The sensors sample the temperature field, quantize the samples and transmit the encoded samples through digital channels t ...

Institute of Electrical and Electronics Engineers2011

Telemetry system for sensing applications in lossy media

Anja Skrivervik, Eric Meurville, Francesco Merli, Léandre Bolomey

Wireless communications in lossy media encounter growing interest, with applications as telemedicine, ground sensing, remote pipeline sensing, and food quality testing among others. As an application, an autonomous implantable Body Sensor Node for monitori ...

2011

Polar Codes are Optimal for Lossy Source Coding

Rüdiger Urbanke, Satish Babu Korada

We consider lossy source compression of a binary symmetric source using polar codes and the low-complexity successive encoding algorithm. It was recently shown by Arikan that polar codes achieve the capacity of arbitrary symmetric binary-input discrete mem ...

Institute of Electrical and Electronics Engineers2010

On the Information Rates of the Plenoptic Function

Martin Vetterli, Minh Do

The plenoptic function describes the visual information available to an observer at any point in space and time. Samples of the plenoptic function (POF) are seen in video and in general visual content (images, mosaics, panoramic scenes, etc.), and rep- res ...

Institute of Electrical and Electronics Engineers2010

Shape distortions and Gestalt grouping in anorthoscopic perception

Michael Herzog

When a figure moves behind a stationary narrow slit, observers often report seeing the figure as a whole, a phenomenon called slit viewing or anorthoscopic perception. Interestingly, in slit viewing, the figure is perceived compressed along the axis of mot ...

Association for Research in Vision and Ophthalmology2009

On Wyner-Ziv networks

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Chattez avec Graph Search

Approaching the Rate-Distortion Limit by spatial Coupling with Belief Propagation and Decimation

Distributed average consensus with quantization refinement

Evaluation of Side Information Effectiveness in Distributed Video Coding

Lossy source coding via spatially coupled LDGM ensembles

Distributed Compressed Representation of Correlated Image Sets

On Source Coding for Distributed Temperature Sensing with Shift-Invariant Geometries

Telemetry system for sensing applications in lossy media

Polar Codes are Optimal for Lossy Source Coding

On the Information Rates of the Plenoptic Function

Shape distortions and Gestalt grouping in anorthoscopic perception

Approaching the Rate-Distortion Limit by spatial Coupling with Belief Propagation and Decimation

Evaluation of Side Information Effectiveness in Distributed Video Coding

Distributed average consensus with quantization refinement

Distributed Compressed Representation of Correlated Image Sets

Lossy source coding via spatially coupled LDGM ensembles

Telemetry system for sensing applications in lossy media

On Source Coding for Distributed Temperature Sensing with Shift-Invariant Geometries

Shape distortions and Gestalt grouping in anorthoscopic perception

Polar Codes are Optimal for Lossy Source Coding

On the Information Rates of the Plenoptic Function