MEASUREMENT OF HANDWRITING TREMORFOR DIAGNOSTIC PURPOSES

摘要

Spectral analysis of the tremor signals gotrnfrom the movement of the writing hand is presented in thisrnpaper. Analysis of stylus position and velocity is made uponrndata collected from the computer system for handwritingrnanalyses, developed in Institute of Precision and BiomedicalrnEngineering Warsaw University of Technology. Volunteersrndrew the circles on the digitiser surface using electronic penrnsimilar to a normal ballpoint pen. Presented analyses werernobtained from the group of 31 participants aged from 21 torn60 with different spectral analysis results of tremorrnmeasurements. Some of analyses were chosen to showrndifferences between person without troubles in handwritingrnand that one whose handwriting is not easily readablernbecause of some troubles with motorical skills or somerndiseases with pathological tremor, for example Parkinson'srndisease. As a results of my research I presented the methodrnto classify the spectrum analyses for characteristic tremorrngroup using numerical parameters.