Person
Iva Bogdanova Vandergheynst
This person is no longer with EPFL
Related publications (21)
Scale Invariant Feature Transform on the Sphere: Theory and Applications
Michel Bierlaire, Jean-Philippe Thiran, Javier Cruz Mota, Iva Bogdanova Vandergheynst
A SIFT algorithm in spherical coordinates for omnidirectional images is proposed. This algorithm can generate two types of local descriptors, Local Spherical Descriptors and Local Planar Descriptors. With the first ones, point matching between two omnidire ...
Springer Verlag2012A Multi-Lead ECG Classification Based on Random Projection Features
David Atienza Alonso, Iva Bogdanova Vandergheynst
This paper presents a novel method for classification of multilead electrocardiogram (ECG) signals. The feature extraction is based on the random projection (RP) concept for dimensionality reduction. Furthermore, the classification is performed by a neuro- ...
IEEE Press2012A Multi-Lead Ecg Classification Based On Random Projection Features
David Atienza Alonso, Francisco Javier Rincon Vallejos, Iva Bogdanova Vandergheynst
This paper presents a novel method for classification of multi-lead electrocardiogram (ECG) signals. The feature extraction is based on the random projection (RP) concept for dimensionality reduction. Furthermore, the classification is performed by a neuro ...
IEEE Press2012Dynamic Visual Attention on the Sphere
Pierre-André Farine, Heinz Hügli, Iva Bogdanova Vandergheynst, Alexandre Bur
In this paper we present a computational model of dynamic visual attention on the sphere which combines static (intensity,chromaticity, orientation) and motion features in order to detect salient locations in omnidirectional image sequences while working d ...
Elsevier2010Dynamic Attentive System for Omnidirectional Video
Pierre-André Farine, Iva Bogdanova Vandergheynst
In this paper, we propose a dynamic attentive system for detecting the most salient regions of interest in omnidirectional video. The spot selection is based on computer modeling of dynamic visual attention. In order to operate on video sequences, the proc ...
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009Visual Attention on the Sphere
Heinz Hügli, Iva Bogdanova Vandergheynst, Alexandre Bur
Human visual system makes an extensive use of visual attention in order to select the most relevant informations and speed-up the vision process. Inspired by visual attention, several computer models have been developped and many computer vision applicatio ...
2008Visual Attention on the Sphere
Heinz Hügli, Iva Bogdanova Vandergheynst, Alexandre Bur
Human visual system makes an extensive use of visual attention in order to select the most relevant information and speed-up the vision process. Inspired by visual attention, several computer models have been developped and many computer vision application ...
2008The spherical approach to omnidirectional visual attention
Heinz Hügli, Iva Bogdanova Vandergheynst, Alexandre Bur
Computational visual attention (VA) has been widely investigated during the last three decades but the conventional algorithms are not suitable for omnidirectional images which often contain a significant amount of radial distortion. Only recently a comput ...
2008The continous wavelet transform on conic sections
Pierre Vandergheynst, Iva Bogdanova Vandergheynst
We review the coherent state or group-theoretical construction of the continuous wavelet transform (CWT) on the two-sphere. Next we describe the construction of a CWT on the upper sheet of a two-sheeted hyperboloid, emphasizing the similarities between the ...
2008The continuous wavelet transform on conic sections
Pierre Vandergheynst, Iva Bogdanova Vandergheynst
We review the known construction of the continuous wavelet transform (CWT) on the two-sphere. Next we describe the construction of a CWT on the upper sheet of a two- sheeted hyperboloid, emphasizing the similarities between the two cases. Finally we give s ...
2008