DocumentCode :
2759956
Title :
Wavelet and entropy analysis combination to evaluate diffusion and correlation behaviours
Author :
Chiou, Rui C H ; Ferreira, Mariaa Liceg V ; Silva, Claudiot ; Kaufman, Ariee
Author_Institution :
Dept. of Comput. & Digital Syst. Eng., Sao Paulo Univ., Brazil
fYear :
1997
fDate :
14-17 Oct 1997
Firstpage :
119
Lastpage :
125
Abstract :
Diffusion and correlation effects are two principal phenomena which have been studied for years and several visualization techniques have been proposed to help scientists to understand them. The analysis of these phenomena will help to extract important information from data sets. To understand these problems we combine wavelet and entropy analysis to evaluate the evolution of these behaviours through scale and time. We present image case studies to show several different kinds of behaviours of these effects. Some of them are fallible cases and not reliable, as the images do not show the desired information. We calculate entropy of smooth and detail coefficient sets, generated by wavelet transform of these sample images in each scale, to obtain measures that allow us to evaluate these behaviours according to the organization complexity. These measures can provide an indication about the quality of the rendered images
Keywords :
computational complexity; data visualisation; image processing; rendering (computer graphics); wavelet transforms; correlation behaviours; data sets; diffusion behaviours; entropy analysis; image case studies; rendered images; visualization techniques; wavelet analysis; Data mining; Data visualization; Digital systems; Entropy; Information analysis; Multiresolution analysis; Rendering (computer graphics); Systems engineering and theory; Wavelet analysis; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Graphics and Image Processing, 1997. Proceedings., X Brazilian Symposium on
Conference_Location :
Campos do Jordao
Print_ISBN :
0-8186-8102-0
Type :
conf
DOI :
10.1109/SIGRA.1997.625157
Filename :
625157
Link To Document :
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