Abstract:
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In this paper, a comprehensive set of texture features extracted from the experimental semivariogram of
specific image objects is proposed and described, and their usefulness for land use classification of high
resolution ...[+]
In this paper, a comprehensive set of texture features extracted from the experimental semivariogram of
specific image objects is proposed and described, and their usefulness for land use classification of high
resolution images is evaluated. Fourteen features are defined and categorized into three different
groups, according to the location of their respective parameters in the semivariogram curve: (i) features
that use parameters close to the origin of the semivariogram, (ii) the parameters employed extend to the
first maximum, and (iii) the parameters employed are extracted from the first to the second maximum.
A selection of the most relevant features has been performed, combining the analysis and interpretation
of redundancies, and using statistical discriminant analysis methods. The suitability of the proposed
features for object-based image classification has been evaluated using digital aerial images from an
agricultural area on the Mediterranean coast of Spain. The performance of the selected semivariogram
features has been compared with two different sets of texture features: those derived from the grey
level co-occurrence matrix, and the values of raw semivariance directly extracted from the
semivariogram at different positions. As a result of the tests, the classification accuracies obtained
using the proposed semivariogram features are, in general, higher and more balanced than those
obtained using the other two sets of standard texture features.
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Project ID:
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info:eu-repo/grantAgreement/MEC//CTM2006-11767/ES/DESARROLLO Y APLICACION DE NUEVAS TECNICAS DE ACTUALIZACION E INTERPOLACION CARTOGRAFICAS Y ANALISIS MORFOMETRICO DEL TERRENO COMO HERRAMIENTAS DE UTILIDAD EN LA CARACTERIZACION DE SISTEMAS HIDROLOGI/
info:eu-repo/grantAgreement/MEC//CLG2006-11242-C03/ES/EL LITORAL CARBONATADO MEDITERRANEO: MORFOGENESIS KARSTICA, FLUVIAL Y LITORAL Y REGISTROS SEDIMENTARIOS RESPECTIVOS, COMO RESPUESTAS A LA VARIABILIDAD PALEOCLIMATICA CUATERNARIA/
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