Abstract processes in texture discrimination.
In this study some experiments on texture segmentation are reported using the local Gabor power spectrum. The techniques applied are: (1) supervised pixel classification; (2) boundary detection by spectral dissimilarity estimation; (3) region-based segmentation based on Gaussian spectral estimation; and (4) the same as (3) but based on central moments of the local spectrum. It is shown that very-acceptable-to-excellent results can be obtained. It is argued, however, that the shortcomings of region-based and boundary-based approaches require that both processes should act in parallel, not only in digital image processing but also in the modelling of visual perception.
du Buf
J M
JM
Signal Processing Laboratory, Swiss Federal Institute of Technology, Lausanne.
D005556:Form Perception; D006801:Humans; D008433:Mathematics; D008954:Models, Biological; D012815:Signal Processing, Computer-Assisted