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Proceedings Paper

Numerical analysis of variability of the eye pupil geometry based on the fast video recording
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Paper Abstract

Paper presents method of numerical analysis of time variability the eye pupil geometry by use of the first and the second moments of irregular pupil form. Sequences of the pupil shape variations were recorded by use of high-speed CCD camera, with recording speed 250fps and next analyzed on a group of 11 patients. The shape of the pupil for each frame from the sequence was characterized numerically by use of second moments of inertia and orientation of its principal axes. Additionally the area and coordinates of center of gravity of the pupil were calculated. Kinetics of the pupil area, its moment of inertia and principal axes inclination angle were analyzed for each sequence. Results of calculations based on the real shape of the pupil were compared with the elliptic approximation of the pupil form. Calculations show high similarity of results for elliptic approximation of the pupil form and the real form approach. However, more exact analysis show a clear differences in the variability of pupil parameters.

Paper Details

Date Published: 18 December 2012
PDF: 6 pages
Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86970P (18 December 2012); doi: 10.1117/12.2007344
Show Author Affiliations
Marta A. Szmigiel, Wroclaw Univ. of Technology (Poland)
Henryk Kasprzak, Wroclaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 8697:
18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jan Peřina; Libor Nozka; Miroslav Hrabovský; Dagmar Senderáková; Waclaw Urbańczyk; Ondrej Haderka; Libor Nožka, Editor(s)

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