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Proceedings Paper

Capturing reading patterns through a real-time smart camera iris tracking system
Author(s): Mehrube Mehrubeoglu; Evan Ortlieb; Lifford McLauchlan; Linh M. Pham
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Paper Abstract

A real-time iris detection and tracking algorithm has been implemented on a smart camera using LabVIEW graphical programming tools. The program detects the eye and finds the center of the iris, which is recorded and stored in Cartesian coordinates. In subsequent video frames, the location of the center of the iris corresponding to the previously detected eye is computed and recorded for a desired period of time, creating a list of coordinates representing the moving iris center location across image frames. We present an application for the developed smart camera iris tracking system that involves the assessment of reading patterns. The purpose of the study is to identify differences in reading patterns of readers at various levels to eventually determine successful reading strategies for improvement. The readers are positioned in front of a computer screen with a fixed camera directed at the reader's eyes. The readers are then asked to read preselected content on the computer screen, one comprising a traditional newspaper text and one a Web page. The iris path is captured and stored in real-time. The reading patterns are examined by analyzing the path of the iris movement. In this paper, the iris tracking system and algorithms, application of the system to real-time capture of reading patterns, and representation of 2D/3D iris track are presented with results and recommendations.

Paper Details

Date Published: 4 May 2012
PDF: 11 pages
Proc. SPIE 8437, Real-Time Image and Video Processing 2012, 843705 (4 May 2012); doi: 10.1117/12.922875
Show Author Affiliations
Mehrube Mehrubeoglu, Texas A&M Univ. at Corpus Christi (United States)
Evan Ortlieb, Texas A&M Univ. at Corpus Christi (United States)
Lifford McLauchlan, Texas A&M Univ. at Kingsville (United States)
Linh M. Pham, Texas A&M Univ. at Corpus Christi (United States)

Published in SPIE Proceedings Vol. 8437:
Real-Time Image and Video Processing 2012
Nasser Kehtarnavaz; Matthias F. Carlsohn, Editor(s)

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