COMPACT (AND ACCURATE) EARLY VISION PROCESSING IN THE HARMONIC SPACE

Silvio P. Sabatini, Giulia Gastaldi, Fabio Solari, Karl Pauwels, Marc van Hulle, Javier Díaz, Eduardo Ros, Nicolas Pugeault, Norbert Krüger

Abstract

The efficacy of anisotropic versus isotropic filtering is analyzed with respect to general phase-based metrics for early vision attributes. We verified that the spectral information content gathered through oriented frequency channels is characterized by high compactness and flexibility, since a wide range of visual attributes emerge from different hierarchical combinations of the same channels. We observed that it is preferable to construct a multichannel, multiorientation representation, rather than using a more compact representation based on an isotropic generalization of the analytic signal. The complete harmonic content is then combined in the phaseorientation space at the final stage, only, to come up with the ultimate perceptual decisions, thus avoiding an “early condensation” of basic features. The resulting algorithmic solutions reach high performance in real-world situations at an affordable computational cost.

Download


Paper Citation


in Harvard Style

P. Sabatini S., Gastaldi G., Solari F., Pauwels K., van Hulle M., Díaz J., Ros E., Pugeault N. and Krüger N. (2007). COMPACT (AND ACCURATE) EARLY VISION PROCESSING IN THE HARMONIC SPACE . In Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP, ISBN 978-972-8865-73-3, pages 213-220. DOI: 10.5220/0002050502130220


in Bibtex Style

@conference{visapp07,
author={Silvio P. Sabatini and Giulia Gastaldi and Fabio Solari and Karl Pauwels and Marc van Hulle and Javier Díaz and Eduardo Ros and Nicolas Pugeault and Norbert Krüger},
title={COMPACT (AND ACCURATE) EARLY VISION PROCESSING IN THE HARMONIC SPACE},
booktitle={Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,},
year={2007},
pages={213-220},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002050502130220},
isbn={978-972-8865-73-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Second International Conference on Computer Vision Theory and Applications - Volume 1: VISAPP,
TI - COMPACT (AND ACCURATE) EARLY VISION PROCESSING IN THE HARMONIC SPACE
SN - 978-972-8865-73-3
AU - P. Sabatini S.
AU - Gastaldi G.
AU - Solari F.
AU - Pauwels K.
AU - van Hulle M.
AU - Díaz J.
AU - Ros E.
AU - Pugeault N.
AU - Krüger N.
PY - 2007
SP - 213
EP - 220
DO - 10.5220/0002050502130220