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From Bits to Images: Inversion of Local Binary Descriptors
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Emmanuel d'Angelo,Laurent Jacques,Alexandre Alahi,Pierre Vandergheynst
Issue Date:May 2014
pp. 1-1
Local Binary Descriptors are becoming more and more popular for image matching tasks, especially when going mobile. While they are extensively studied in this context, their ability to carry enough information in order to infer the original image is seldom...
 
Compressive sampling of pulse trains: Spread the spectrum!
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Farid M. Naini, Remi Gribonval, Laurent Jacques, Pierre Vandergheynst
Issue Date:April 2009
pp. 2877-2880
In this paper we consider the problem of sampling far below the Nyquist rate signals that are sparse linear superpositions of shifts of a known, potentially wide-band, pulse. This signal model is key for applications such as Ultra Wide Band (UWB) communica...
 
A low complexity Orthogonal Matching Pursuit for sparse signal approximation with shift-invariant dictionaries
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Boris Mailhe, Remi Gribonval, Frederic Bimbot, Pierre Vandergheynst
Issue Date:April 2009
pp. 3445-3448
We propose a variant of Orthogonal Matching Pursuit (OMP), called LoCOMP, for scalable sparse signal approximation. The algorithm is designed for shift-invariant signal dictionaries with localized atoms, such as time-frequency dictionaries, and achieves ap...
 
Audiovisual Gestalts
Found in: Computer Vision and Pattern Recognition Workshop
By Gianluca Monaci, Pierre Vandergheynst
Issue Date:June 2006
pp. 200
This paper presents an algorithm to correlate audio and visual data generated by the same physical phenomenon. According to psychophysical experiments, temporal synchrony strongly contributes to integrate cross-modal information in humans. Thus, we define ...
 
Progressive Low Bit Rate Coding of Simple 3D Objects with Matching Pursuit
Found in: Data Compression Conference
By Ivana Tosic, Pascal Frossard, Pierre Vandergheynst
Issue Date:March 2005
pp. 483-483
No summary available.
   
Geometric Moments in Scale-Spaces
Found in: Pattern Recognition, International Conference on
By Xavier Bresson, Pierre Vandergheynst, Jean-Philippe Thiran
Issue Date:August 2002
pp. 20418
In this paper we present a generalization of geometric moments in scale-spaces derived from the general heat diffusion equation, with a particular interest for the min/max flow . As an application of those theoretical developments, two multiscale moments a...
 
Rotation and Scale Invariant Shape Representation and Recognition Using Matching Pursuit
Found in: Pattern Recognition, International Conference on
By Fran├žois Mendels, Pierre Vandergheynst, Jean-Philippe Thiran
Issue Date:August 2002
pp. 40326
<p>Using a low-level representation of images, like matching pursuit, we introduce a new way of describing objects through a general description using a translation, rotation, and isotropic scale invariant dictionary of basis functions.</p> <...
 
Object detection and matching in a mixed network of fixed and mobile cameras
Found in: Proceeding of the 1st ACM workshop on Analysis and retrieval of events/actions and workflows in video streams (AREA '08)
By Alexandre Alahi, Michel Bierlaire, Murat Kunt, Pierre Vandergheynst
Issue Date:October 2008
pp. 69-76
This work tackles the challenge of detecting and matching objects in scenes observed simultaneously by fixed and mobile cameras. No calibration between the cameras is needed, and no training data is used. A fully automated system is presented to detect if ...
     
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