A Study of Curve Fitting Methods Used in Eye-Movement Detecting System
Huan Wang · Jisuanji fangzhen · 2009
Nystagmus detecting is an important method of vertigo judgment,and getting the wave of pupil fluctuation is the major content of nystagmus detecting. To set up mathematic model for the wave of pupil fluctuation in nystagmus detecting experiment,least square method fitting and Fourier progression fitting are used for data processing. Contrasting the two methods,the effect of Fourier progression fitting set up by Cftool of Matlab is better. As confirmed in the experiment,the mathematic model set up by this method can reflect the movement of the pupil exactly and in real time. The result of the curve fitting provides important evidence for vertigo judgment,and is of instructional significance to future research of nystagmus.