Texture Analysis Of Diagnostic Tray Images By Use Of Fractals

T. Lundahl; W. J. Ohley; S. M. Kay; H. White; D. O. Williams; A. S. Most

doi:10.1117/12.937245

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20 November 1986 Texture Analysis Of Diagnostic Tray Images By Use Of Fractals

T. Lundahl; W. J. Ohley; S. M. Kay; H. White; D. O. Williams; A. S. Most

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Proceedings Volume 0707, Visual Communications and Image Processing; (1986) https://doi.org/10.1117/12.937245
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

In this work a discrete fractional Brownian motion (FBM) model is applied to xray images as a measure of the regional texture. FBM is a generalization of ordinary Wiener-Levy Brownian motion. A Parameter H is introduced which describes the roughness of the realizations. Using generated realizations, a Cramer-Rao bound for the variance of an estimate of Hwas evaluated using asymptotic statistics. The results show that the accuracy of the estimate is independent of the true H. A maximum likelihood estimator is derived for H and applied to the data sets The results were close to the C-R bound. The MLE is then applied to sequences of digital coronary angiograms. The results show that the H parameter is a useful index by which to segment vessels from background noise.

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T. Lundahl, W. J. Ohley, S. M. Kay, H. White, D. O. Williams, and A. S. Most "Texture Analysis Of Diagnostic Tray Images By Use Of Fractals", Proc. SPIE 0707, Visual Communications and Image Processing, (20 November 1986); https://doi.org/10.1117/12.937245