Title :
Using entropy to determine the roundness of rock particles
Author :
Drevin, Günther R.
Author_Institution :
Comput. Sci. & Inf. Syst., Potchefstroom Univ. for CHE, South Africa
Abstract :
A number of subjective and objective methods have been proposed to determine the roundness of rock particles, roundness being one of three properties describing the shape of a particle. The objective methods are mainly based on the Fourier transform. In this paper alternative methods based on the Emlen (1973) and entropy measures of inequality are proposed. Furthermore the use of the Kullback-Leibler distance to determine roundness was also investigated. These methods were compared with that proposed by Diepenbroek et al. (1992)
Keywords :
Fourier transforms; entropy; geophysical techniques; rocks; Emlen measures; Fourier transform; Kullback-Leibler distance; entropy inequality measures; objective methods; particle shape; rock particles roundness; subjective methods; Africa; Channel hot electron injection; Computer science; Entropy; Fourier transforms; History; Information systems; Particle measurements; Shape measurement; Surface texture;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.891806
