| HAL : hal-00617619, version 1 |
| DOI : 10.1109/ICIP.2011.6116614 |
| Fiche détaillée | Récupérer au format |
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| ICIP 2011 - 18th IEEE International Conference on Image Processing, Bruxelles : Belgique (2011) |
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| Newton Optimization Based Congealing for Facial Image Alignment |
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| Weiyuan Ni 1Alice Caplier 2 |
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| (11/09/2011) |
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| Congealing is an unsupervised image alignment method for a set of images, and the transformation parameters are obtained by minimizing a sum-of-entropies function. In this paper, we provide a solution to improve the estimation of transformation parameters using a Newton optimization method, under the premise of maintaining the compatibility with feature descriptors. Besides, instead of SIFT descriptor in canonical Congealing, we combine Congealing with POEM (Patterns of Oriented Edge Magnitudes) which catches both edge information and the relation between pixels at a neighboring region. The experiment results show that our alignment method has better ability for the removal of unwanted displacements, and also improves the performance of face recognition. |
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| 1 : | ACROE - Ingénierie de la Création Artistique (ACROE-ICA) |
| Institut polytechnique de Grenoble (Grenoble INP) – Ministère de la Culture et de la Communication | |
| 2 : | Grenoble Images Parole Signal Automatique (GIPSA-lab) |
| CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology | |
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| AGPIG |
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| Domaine | : | Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| Face alignment – Congealing – Newton optimization – POEM |
| hal-00617619, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00617619 | |
| oai:hal.archives-ouvertes.fr:hal-00617619 | |
| Contributeur : Alice Caplier | |
| Soumis le : Lundi 29 Août 2011, 18:14:06 | |
| Dernière modification le : Vendredi 5 Avril 2013, 19:26:56 | |