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

Publications associées (84)

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Multiaxial Yield Behaviour of Al Replicated Foam

Andreas Mortensen, Etienne Combaz

Two major classes of models for the multiaxial yield behaviour of aluminium foams are found in the literature. One is based on the foam properties and uses empirical constants determined by fitting of experimental data. The other is based on a mean-field a ...

2007

Burrows-Wheeler text compression with fountain codes

Mohammad Amin Shokrollahi, Bertrand Ndzana Ndzana

This paper presents an algorithm in a purely lossless text compression setting based on fountain codes and the Burrows-Wheeler transform (BWT). The scheme consists of five stages, each of which is briefly described in the paper. The algorithm offers encour ...

2006

Directionlets

Vladan Velisavljevic

Efficient representation of geometrical information in images is very important in many image processing areas, including compression, denoising and feature extraction. However, the design of transforms that can capture these geometrical features and repre ...

EPFL2005

Perceptual Blur and Ringing Metrics: Application to JPEG2000

Touradj Ebrahimi

In this paper, we present full-reference as well as no-reference metrics for typical JPEG 2000 compression artifacts, namely blur and ringing. These metrics are based on an analysis of the edges and adjacent regions in an image. Their perceptual significan ...

2004

On Compression Using the Distributed Karhunen-Loeve Transform

Martin Vetterli, Michael Christoph Gastpar, Pier Luigi Dragotti

In this paper, we discuss a framework for the distributed compression of vector sources, based on our previous work on distributed transform coding. In particular, our goal is to develop a strategy of first applying a suitable distributed Karhunen-Loeve tr ...

2004

Grammar-Based Tree Compression

Grammar-based compression means to find a small grammar that generates a given object. Such a grammar reveals the structure of the object (according to the grammar formalism used); the main advantage of this compression method is that the resulting grammar ...

2004

Phase transitions in a lipid monolayer observed with vibrational sum-frequency generation

Sylvie Roke, Michael Müller

Using both vibrational sum-frequency generation and fluorescence microscopy, the phase behaviour of a DPPC lipid monolayer on water is investigated as a function of surface pressure. The vibrational specificity of the sum-frequency generation techniques pe ...

2003

A new method for manufacturing nanostructured electrodes on glass substrates

Ulf Anders Hagfeldt

The present paper describes a new method for manufg. a nanostructured porous layer of TiO2 on a conducting glass substrate for use in a dye-sensitized photoelectrochem. cell. The method involves deposition of a layer of semiconductor particles onto a condu ...

2002

An ASIC implementation of adaptive arithmetic coding

Andreas Peter Burg

In this work, we present an improved version of an ASIC implementation of the adaptive arithmetic coding algorithm which uses a two-level memory hierarchy. We propose algorithmic modifications and a special hardware structure to speed-up the design without ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2002

Extension of Wavelet Compression Algorithms to 3D and 4D Image Data: Exploitation of Data Coherence in Higher Dimensions Allows Very High Compression Ratios

Michaël Unser

High resolution multidimensional image data yield huge datasets. For compression and analysis, 2D approaches are often used, neglecting the information coherence in higher dimensions, which can be exploited for improved compression. We designed a wavelet c ...

SPIE2001