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Error Evaluation in a Stereovision-Based 3D Reconstruction System

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Author(s): Belhaoua Abdelkrim | Kohler Sophie | Hirsch Ernest

Journal: EURASIP Journal on Image and Video Processing
ISSN 1687-5176

Volume: 2010;
Issue: 1;
Start page: 539836;
Date: 2010;
Original page

ABSTRACT
The work presented in this paper deals with the performance analysis of the whole 3D reconstruction process of imaged objects, specifically of the set of geometric primitives describing their outline and extracted from a pair of images knowing their associated camera models. The proposed analysis focuses on error estimation for the edge detection process, the starting step for the whole reconstruction procedure. The fitting parameters describing the geometric features composing the workpiece to be evaluated are used as quality measures to determine error bounds and finally to estimate the edge detection errors. These error estimates are then propagated up to the final 3D reconstruction step. The suggested error analysis procedure for stereovision-based reconstruction tasks further allows evaluating the quality of the 3D reconstruction. The resulting final error estimates enable lastly to state if the reconstruction results fulfill a priori defined criteria, for example, fulfill dimensional constraints including tolerance information, for vision-based quality control applications for example.
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