A Generic Interval Branch and Bound Algorithm for Parameter Estimation - École des Ponts ParisTech Accéder directement au contenu
Article Dans Une Revue Journal of Global Optimization Année : 2019

A Generic Interval Branch and Bound Algorithm for Parameter Estimation

Résumé

In engineering sciences, parameter estimation is a challenging problem consisting in computing the parameters of a parametric model that fit observed data. The system is defined by unknown parameters and sometimes internal constraints. The observed data provide constraints on the parameters. This problem is particularly difficult when some observation constraints correspond to outliers and/or the constraints are non convex. The ransac randomized algorithm can efficiently handle it, but is non deterministic and must be specialized for every problem. This paper presents the first generic interval branch and bound algorithm that produces a model maximizing the number of observation constraints satisfied within a given tolerance. This tool is inspired by the IbexOpt branch and bound algorithm for constrained global optimization (NLP) and is endowed with an improved version of a relaxed intersection operator applied to observations. Experiments have been carried out on two different computer vision problems. They highlight a significant speedup w.r.t. Jaulin et al.’s interval method in 2D and 3D shape recognition problems (having three parameters). We have also obtained promising results on a stereo vision problem where the essential matrix (five parameters) is estimated exactly at a good accuracy in hours for models having a thousand points, a typical size for such problems.
Fichier principal
Vignette du fichier
bbestim_jogo_2018.pdf (3.17 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01942306 , version 1 (03-12-2018)

Identifiants

Citer

Bertrand Neveu, Martin de La Gorce, Pascal Monasse, Gilles Trombettoni. A Generic Interval Branch and Bound Algorithm for Parameter Estimation. Journal of Global Optimization, 2019, 73 (3), pp.515-535. ⟨10.1007/s10898-018-0721-3⟩. ⟨hal-01942306⟩
184 Consultations
792 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More