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Proceedings Paper

Multi-stage robust scheme for citrus identification from high resolution airborne images
Author(s): Julia Amorós-López; Emma Izquierdo Verdiguier; Luis Gómez-Chova; Jordi Muñoz-Marí; Jorge Zoilo Rodríguez-Barreiro; Gustavo Camps-Valls; Javier Calpe-Maravilla
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Paper Abstract

Identification of land cover types is one of the most critical activities in remote sensing. Nowadays, managing land resources by using remote sensing techniques is becoming a common procedure to speed up the process while reducing costs. However, data analysis procedures should satisfy the accuracy figures demanded by institutions and governments for further administrative actions. This paper presents a methodological scheme to update the citrus Geographical Information Systems (GIS) of the Comunidad Valenciana autonomous region (Spain). The proposed approach introduces a multi-stage automatic scheme to reduce visual photointerpretation and ground validation tasks. First, an object-oriented feature extraction process is carried out for each cadastral parcel from very high spatial resolution (VHR) images (0.5m) acquired in the visible and near infrared. Next, several automatic classifiers (decision trees, multilayer perceptron, and support vector machines) are trained and combined to improve the final accuracy of the results. The proposed strategy fulfills the high accuracy demanded by policy makers by means of combining automatic classification methods with visual photointerpretation available resources. A level of confidence based on the agreement between classifiers allows us an effective management by fixing the quantity of parcels to be reviewed. The proposed methodology can be applied to similar problems and applications.

Paper Details

Date Published: 9 October 2008
PDF: 9 pages
Proc. SPIE 7109, Image and Signal Processing for Remote Sensing XIV, 710908 (9 October 2008); doi: 10.1117/12.801737
Show Author Affiliations
Julia Amorós-López, Univ. de Valencia (Spain)
Emma Izquierdo Verdiguier, Univ. de Valencia (Spain)
Luis Gómez-Chova, Univ. de Valencia (Spain)
Jordi Muñoz-Marí, Univ. de Valencia (Spain)
Jorge Zoilo Rodríguez-Barreiro, Instituto Cartográfico Valenciano (Spain)
Gustavo Camps-Valls, Univ. de Valencia (Spain)
Javier Calpe-Maravilla, Univ. de Valencia (Spain)

Published in SPIE Proceedings Vol. 7109:
Image and Signal Processing for Remote Sensing XIV
Lorenzo Bruzzone; Claudia Notarnicola; Francesco Posa, Editor(s)

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