Raghavendra, BS and Dutt, Narayana D (2009) A note on fractal dimensions of biomedical waveforms. In: Computers in Biology and Medicine, 39 (11). pp. 1006-1012.
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In this paper, we study performance of Katz method of computing fractal dimension of waveforms, and its estimation accuracy is compared with Higuchi's method. The study is performed on four synthetic parametric fractal waveforms for which true fractal dimensions can be calculated, and real sleep electroencephalogram. The dependence of Katz's fractal dimension on amplitude, frequency and sampling frequency of waveforms is noted. Even though the Higuchi's method has given more accurate estimation of fractal dimensions, the study suggests that the results of Katz's based fractal dimension analysis of biomedical waveforms have to be carefully interpreted.
|Item Type:||Journal Article|
|Additional Information:||Copyright for this article belongs to Elsevier Science.|
|Keywords:||Fractal dimension; Katz's method; Higuchi's method; Estimation accuracy; Waveform amplitude; Sampling frequency; Electroencephalogram|
|Department/Centre:||Division of Electrical Sciences > Electrical Communication Engineering|
|Date Deposited:||04 Dec 2009 05:35|
|Last Modified:||19 Sep 2010 05:53|
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