• openAccess   Filter banks for hyperspectral pixel classification of satellite images 

      Rajadell Rojas, Olga; García-Sevilla, Pedro; Pla, Filiberto Springer Verlag (Germany) (2009)
      Satellite hyperspectral imaging deals with heterogenous images containing different texture areas. Filter banks are frequently used to characterize textures in the image performing pixel classification. This filters are ...
    • openAccess   Influence of color spaces over texture characterization 

      Rajadell Rojas, Olga; García-Sevilla, Pedro Instituto Politécnico Nacional (Mèxic). Centro de Investigación en Computación (2008)
      Images are generally represented in the RGB color space. This is the model commonly used for most cameras and for displaying on computer screens. Nevertheless, the representation of color images using this color space has ...
    • openAccess   On the influence of spatial information for hyper-spectral satellite imaging characterization 

      Rajadell Rojas, Olga; García-Sevilla, Pedro; Pla, Filiberto Springer (2011)
      Land-use classification for hyper-spectral satellite images requires a previous step of pixel characterization. In the easiest case, each pixel is characterized by its spectral curve. The improvementof the spectral and ...