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Theses

Reconstruction tridimensionnelle à partir d'une caméra en mouvement : de l'influence de la precision

Abstract : This thesis is mainly devoted to algorithms allowing an accurate extraction of the image information. Many algorithms being based on the pinhole model, a method to correct distorsions with respect to this model are presented. This method does not use any explicit distorsion model. Accurate extraction of points in image is discussed in chapter 2. In a first step, a detection is realized, using an explicit model of the point. Two kinds of models are studied: that of corners, and that of circular targets. An accurate matching method is also presented. The accuracy obtained is 1/10th of a pixel for corners, 1/20th of a pixels for circular targets and matches. These data were validated on real images. The last chapter studies the accurate reconstruction of points in the scene. For different reconstruction methods (triangulation or factorization), the reconstruction accuracy is analyzed with respect the point accuracy.
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https://tel.archives-ouvertes.fr/tel-00005031
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Submitted on : Tuesday, February 24, 2004 - 9:49:56 AM
Last modification on : Friday, November 6, 2020 - 4:39:24 AM
Long-term archiving on: : Friday, April 2, 2010 - 8:51:30 PM

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  • HAL Id : tel-00005031, version 1

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Pascal Brand. Reconstruction tridimensionnelle à partir d'une caméra en mouvement : de l'influence de la precision. Interface homme-machine [cs.HC]. Université Claude Bernard - Lyon I, 1995. Français. ⟨tel-00005031⟩

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