Author/Editor     Sevšek, France; Jakovljević, Miroljub
Title     Heart rate variability - a shape analysis of Lorenz Plots
Type     članek
Source     Cell Mol Biol Lett
Vol. and No.     Letnik 7, št. 1
Publication year     2002
Volume     str. 159-61
Language     eng
Abstract     A new quantitative geometrical method to analyse heart rate variability is presented. The standard image analysis techniques were applied to the grey scale images of Lorenz plots, and the outlines of the aftractor areas were determined via a contour following procedure based on a maze walking algorithm. For graphs of simple compact shape, the attractor region contours were described in terms of Fourier coefficients.
Descriptors     HEART RATE
ALGORITHMS
IMAGE PROCESSING, COMPUTER-ASSISTED
MATHEMATICS
TIME FACTORS
FOURIER ANALYSIS