Title :
Isotropic versus anisotropic encoding of visual information
Author :
Ferraro, Mario ; Boccignone, Giuseppe ; Caelli, Terry
Author_Institution :
Dipt. di Fisica Sperimentale, Torino Univ., Italy
Abstract :
Loss of information in images undergoing fine-to-coarse image transformations is analyzed by using an approach based on the theory of irreversible transformations. The method is applied to isotropic and anisotropic diffusion and an algorithm based on entropy variation is presented that extracts relevant features of the image and provides a method to discriminate between smooth, textured and edge-type regions
Keywords :
data compression; entropy codes; feature extraction; image coding; algorithm; anisotropic diffusion; anisotropic encoding; edge-type region; entropy variation; feature extraction; fine-to-coarse image transformations; image information loss; irreversible transformations; isotropic diffusion; isotropic encoding; smooth region; textured region; visual information; Anisotropic magnetoresistance; Data mining; Encoding; Entropy; Equations; Feature extraction; Image analysis; Information analysis; Production; Thermodynamics;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.899603
