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

Marta A. Szmigiel; Henryk Kasprzak

doi:10.1117/12.2007344

18 December 2012 Numerical analysis of variability of the eye pupil geometry based on the fast video recording

Marta A. Szmigiel, Henryk Kasprzak

Proceedings Volume 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 86970P (2012) https://doi.org/10.1117/12.2007344
Event: 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2012, Ostravice, Czech Republic

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.

Citation Download Citation

Marta A. Szmigiel and Henryk Kasprzak "Numerical analysis of variability of the eye pupil geometry based on the fast video recording", Proc. SPIE 8697, 18th Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 86970P (18 December 2012); https://doi.org/10.1117/12.2007344

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