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Multifractal Modeling and Lacunarity Analysis
Authors:Qiuming Cheng
Institution:(1) Department of Earth and Atmospheric Science, Department of Geography, York University, North York, Ontario, M3J1P3, Canada
Abstract:The so-called ldquogliding box methodrdquo of lacunarity analysis has been investigated for implementing multifractal modeling in comparison with the ordinary box-counting method. Newly derived results show that the lacunarity index is associated with the dimension (codimension) of fractal, multifractal and some types of nonfractals in power-law relations involving box size; the exponent of the lacunarity function corresponds to the fractal codimension (E – D) for fractals and nonfractals, and to the correlation codimension (E – taulpar;2)) for multifractals. These results are illustrated with two case studies: De Wijs's zinc concentration values from the Pulacayo sphalerite-quartz vein in Bolivia and Cochran's tree seedlings example. Both yield low lacunarities and slightly depart from translational invariance.
Keywords:multifractals  fractal  lacunarity  gliding box  box-counting  moments
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