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Classification of textures seen from different distances and under varying illumination direction

Changes in the angle of illumination incident upon a 3D surface texture can significantly alter its appearance, implying variations in the image texture. These texture variations produce displacements of class members in the feature space, increasing the failure rates of texture classifiers. To avoid this problem, a model-based texture recognition system which classifies textures seen from different distances and under different illumination directions is presented in this paper. The system works on the basis of a surface model obtained by means of 4-source colour photometric stereo, used to generate 2D image textures under different illumination directions. The recognition system combines coocurrence matrices for feature extraction with a Nearest Neighbour classifier. Moreover, the recognition allows one to guess the approximate direction of the illumination used to capture the test image

© Image Processing, 2003, vol. 1, p. 833-836

IEEE

Autor: Lladó Bardera, Xavier
Martí Bonmatí, Joan
Petrou, Maria
Data: 2003
Resum: Changes in the angle of illumination incident upon a 3D surface texture can significantly alter its appearance, implying variations in the image texture. These texture variations produce displacements of class members in the feature space, increasing the failure rates of texture classifiers. To avoid this problem, a model-based texture recognition system which classifies textures seen from different distances and under different illumination directions is presented in this paper. The system works on the basis of a surface model obtained by means of 4-source colour photometric stereo, used to generate 2D image textures under different illumination directions. The recognition system combines coocurrence matrices for feature extraction with a Nearest Neighbour classifier. Moreover, the recognition allows one to guess the approximate direction of the illumination used to capture the test image
Format: application/pdf
Cita: Lladó, X., Martí, J., Petrou, M. (2003). Classification of textures seen from different distances and under varying illumination direction. Image processing, 1, 833-836. Recuperat 04 maig 2010, a http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1247092
ISSN: 1522-4880
Accés al document: http://hdl.handle.net/10256/2158
Llenguatge: eng
Editor: IEEE
Col·lecció: Reproducció digital del document publicat a: http://dx.doi.org/10.1109/ICIP.2003.1247092
Articles publicats (D-ATC)
És part de: © Image Processing, 2003, vol. 1, p. 833-836
Drets: Tots els drets reservats
Matèria: Imatges -- Processament -- Tècniques digitals
Image processing -- Digital techniques
Títol: Classification of textures seen from different distances and under varying illumination direction
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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