Computer vision and otolith: toward a modelisation of the morphogenesis of accretionary processes

Free access article

Issue		ESAIM: Proc. Volume 22, 2008 CANUM 2006 - Congrès National d'Analyse Numérique


Page(s)		150 - 154
DOI		http://dx.doi.org/10.1051/proc:072218
Published online		01 February 2008

ESAIM: Proc., 2008, Vol. 22, pp. 150-154
DOI: 10.1051/proc:072218

Computer vision and otolith: toward a modelisation of the morphogenesis of accretionary processes

Anatole Chessel¹, Ronan Fablet¹ and Frederic Cao²

¹ IFREMER/LASAA, BP 70, technopole Brest/Iroise, 29280 Plouzane, FR. {achessel, rfablet}@ifremer.fr
² IRISA/VISTA, campus de beaulieu, 35042, Rennes, FR. fcao@irisa.fr

(11/08/2006 / Published online: 1 February 2008)

Abstract

Otolith are small stone growing according to an accretionary process located in fishes inner ears from which a lot can be learnt about their biology and ecology. Computer vision is one of the mean of systematic analysis of those stone. This paper describe an approach using partial differential equation and variational methods to reconstruct the morphogenesis of an otolith from an image.

Résumé

Les otolithes sont de petites concrétions calcaires situées dans l'oreille interne des poissons qui peuvent nous en apprendre beaucoup sur leur biologie et leur écologie. La vision par ordinateur est l'une des méthodes d'analyse systématique possible. Nous présentons ici une approche à base d'équation aux dérivées partielles et de méthodes variationnelles permettant de reconstituer la morphogénèse d'un otolithe à partir d'une image.

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