Publications related to Grammar-Based Tree Compression

Real-time, high-speed video decompression using a frame- and event-based DAVIS sensor

Dynamic and active pixel vision sensors (DAVISs) are a new type of sensor that combine a frame-based intensity readout with an event-based temporal contrast readout. This paper demonstrates that these sensors inherently perform high-speed, video compressio ...

IEEE2014

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

David Atienza Alonso, Pierre Vandergheynst, Hossein Mamaghanian

Ultra-low power optimization is a challenging research topic in the de- sign of the sensor front-ends, especially in the area of Wireless Body Sensor Nodes (WBSN), where a limited amount of power and hardware resources are available. In this talk, I analyz ...

2014

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

Corporate structure optimisation for multinational companies

In this paper we consider a multinational corporate structuring problem. This problem involves designing a corporate/organisational structure (across different countries) so as to remit profits from a number of subsidiaries to a single parent company, whil ...

2012

Performance analysis of VP8 image and video compression based on subjective evaluations

Touradj Ebrahimi, Francesca De Simone, Jong Seok Lee, Lutz Goldmann

Today, several alternatives for compression of digital pictures and video sequences exist to choose from. Beside internationally recognized standard solutions, open access options like the VP8 image and video compression have recently appeared and are gain ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2011

Delineating Trees in Noisy 2D Images and 3D Image Stacks

Pascal Fua, François Fleuret, Engin Türetken, Germán González Serrano

We present a novel approach to fully automated delineation of tree structures in noisy 2D images and 3D image stacks. Unlike earlier methods that rely mostly on local evidence, our method builds a set of candidate trees over many different subsets of point ...

2010

Multi-experts scheduling system for real-time applications

Mario Bellino

This thesis focuses on the decisional process of autonomous systems, and more particularly, on the way to take a decision when the time at disposal in order to assess the whole situation is shorter than necessary. Indeed, numerous systems propose solutions ...

EPFL2009

Space-frequency quantization for image compression with directionlets

Martin Vetterli, Vladan Velisavljevic

The standard separable 2-D wavelet transform (WT) has recently achieved a great success in image processing because it provides a sparse representation of smooth images. However, it fails to efficiently capture 1-D discontinuities, like edges or contours. ...

2007

Tree-Based Pursuit: Algorithm and Properties

Pascal Frossard, Pierre Vandergheynst, Philippe Jost

This paper proposes a tree-based pursuit algorithm that efficiently trades off complexity and approximation performance for overcomplete signal expansions. Finding the sparsest representation of a signal using a redundant dictionary is, in general, a NP-Ha ...

2006

Practical Cryptography in High Dimensional Tori

Robert Granger, Martijn Stam

At Crypto 2004, van Dijk and Woodruff introduced a new way of using the algebraic tori

T_n

in cryptography, and obtained an asymptotically optimal

n/\phi(n)

savings in bandwidth and storage for a number of cryptographic applications. However, the compu ...

Springer Berlin Heidelberg2005

Grammar-Based Tree Compression

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Real-time, high-speed video decompression using a frame- and event-based DAVIS sensor

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

Lossy source coding via spatially coupled LDGM ensembles

Corporate structure optimisation for multinational companies

Performance analysis of VP8 image and video compression based on subjective evaluations

Delineating Trees in Noisy 2D Images and 3D Image Stacks

Multi-experts scheduling system for real-time applications

Space-frequency quantization for image compression with directionlets

Tree-Based Pursuit: Algorithm and Properties

Practical Cryptography in High Dimensional Tori

Ultra low power design of hardware efficient CS-Based compression scheme in WBSN

Multi-experts scheduling system for real-time applications

Real-time, high-speed video decompression using a frame- and event-based DAVIS sensor

Corporate structure optimisation for multinational companies

Tree-Based Pursuit: Algorithm and Properties

Lossy source coding via spatially coupled LDGM ensembles

Performance analysis of VP8 image and video compression based on subjective evaluations

Delineating Trees in Noisy 2D Images and 3D Image Stacks

Space-frequency quantization for image compression with directionlets

Practical Cryptography in High Dimensional Tori