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Contour Estimation by Array Processing Methods

EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 095634 (2006) Cite this article

Abstract

This work is devoted to the estimation of rectilinear and distorted contours in images by high-resolution methods. In the case of rectilinear contours, it has been shown that it is possible to transpose this image processing problem to an array processing problem. The existing straight line characterization method called subspace-based line detection (SLIDE) leads to models with orientations and offsets of straight lines as the desired parameters. Firstly, a high-resolution method of array processing leads to the orientation of the lines. Secondly, their offset can be estimated by either the well-known method of extension of the Hough transform or another method, namely, the variable speed propagation scheme, that belongs to the array processing applications field. We associate it with the method called "modified forward-backward linear prediction" (MFBLP). The signal generation process devoted to straight lines retrieval is retained for the case of distorted contours estimation. This issue is handled for the first time thanks to an inverse problem formulation and a phase model determination. The proposed method is initialized by means of the SLIDE algorithm.

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Authors and Affiliations

  1. GSM, Institut Fresnel/CNRS-UMR 6133, Université Aix-Marseille III, D.U. de Saint Jérôme, Marseille Cedex, 20 13397, France

    Salah Bourennane & Julien Marot

  2. École Généraliste d'Ingénieurs de Marseille (EGIM), Technopôle de Château-Gombert, 38 rue Joliot Curie, Marseille Cedex, 20 13451, France

    Salah Bourennane & Julien Marot

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  1. Salah Bourennane
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Correspondence to Salah Bourennane.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Bourennane, S., Marot, J. Contour Estimation by Array Processing Methods. EURASIP J. Adv. Signal Process. 2006, 095634 (2006). https://doi.org/10.1155/ASP/2006/95634

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