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Warianty tytułu
Konferencja
International Conference on Computer Vision and Graphics ICCVG 2006 (25-27.09.2006 ; Warsaw, Poland)
Języki publikacji
Abstrakty
We present a phenomenological parametric model for the spectrum of the discrete Fourier transform [DFT] of the images obtained from the Extreme UV Imaging Telescope [EIT] of the SOHO mission. As this spectrum decays very fast, we model its logarithm rather than the original spectrum. The proposed model is rotation-invariant. The vicinity of the direct current [DC] component of the logarithm of the spectrum is modelled by the sum of two exponential functions, while the region of high frequencies is modelled by a single exponential function summed with a constant. We discuss a method for fitting the model to the experimental data, show the results of numerical experiments, and discuss various measures of goodness of the fit. The fitting of the described model was carried out for a sequence of images covering one year, and the time evolution of the measures of goodness of fit is also presented.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
285--295
Opis fizyczny
Bibliogr. 16 poz., wykr., il.
Twórcy
Bibliografia
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- [5] Huang Y., Chang K., Huang Z.: An adaptive model for texture analysis. Int'l Conf. on Image Proc., Vancouver, BC, Canada, 276-279, 2000.
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- [7] Ilow J., Leung H.: Self-similar texture modelling using FARIMA process with applications to satellite images. IEEE Trans. Image Proc., 10(5), 792-797, 2001.
- [8] Kopparapu S., Desai U.: Bayesian approach to image interpretation. Kluwer, Boston, USA, 2001.
- [9] Murdin P. (editor): Encyclopedia of Astronomy and Astrophysics. Nature Publishing Group, London, UK, 2001.
- [10] Portier-Fozzani F., Vandame B., et al.: A multiscale vision model applied to analyze EIT images of the solar corona. Solar Phys., 201(2), 271-287, 2001.
- [11] Hochedez J.-F., Jacques L., et al.: Small features in the EIT-SOHO images. ESA SP-508, 295-298, 2002.
- [12] Jähne B.: Digital Image Processing. Springer, New York, NJ, USA, 2002.
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- [14] Schmeelk J.: Wavelet transforms on two-dimensional images. Math, and Comp. Mod., 36(7), 939-948, 2002.
- [15] Srivastava A., Liu X., Grenander U.: Universal analytical forms for modeling image probabilities. IEEE Trans. PAMI, 24(9), 1200-1214, 2002.
- [16] Ravindra B., Venkatakrishnan P.: Structure and evolution of the transition region network observed in He II A 304. Solar Phys., 215(2), 239-259, 2003.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWA1-0025-0005