Title Akies rainelės atvaizdo plokštumoje matematinis modeliavimas /
Translation of Title Mathematical simulation of iris planar image.
Authors Paliulis, Egidijus ; Daunys, Gintautas ; Vyšniauskas, Vytautas
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Is Part of Elektronika ir elektrotechnika.. Kaunas : Technologija. 2004, nr. 2(51), p. 74-77.. ISSN 1392-1215
Abstract [eng] The universal three-dimensional mathematical model of eye was developed, for modeling three-dimensional eye rotations (horizontal, vertical and torsion). The model was implemented by MATLAB programming tool. The quaternion mathematic was used for eye rotations modeling. The model was used for analysis of geometric parameters of the iris. By the experiments we found out, when rotation was growing, the iris and the pupil became narrow by cosine law to the direction of rotations. The meridians of the iris weren’t buckle, when rotations range was ±30 deg. The maximal change of the meridians length was 13 percent (was changing by cosine law) and the maximal change of the angle 4 deg. from initial (was changing by parabola law). When rotation was growing, the hoops of the bars became narrow by cosine law to the direction of rotations and the distance between the hoops of the bars decreased by cosine law. There is possible to eliminate influence of torsion to line of sight by rotating system of axes to the same angle and direction as torsion. Torsion destroyed harmonic changes of length and angle of meridians.
Published Kaunas : Technologija
Type Journal article
Language Lithuanian
Publication date 2004
CC license CC license description