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Relationship between 3D Eye-Gaze and the TrueDepth Measured by Vive Pro Eye
Authors:
Kenta Kato
Oky Dicky Ardiansyah Prima
Keywords: eye-gaze; eye vergence; eye tracking; 3D perception; computer vision.
Abstract:
The widespread availability of eye tracking devices has led to the active application of eye-gaze information, such as input interfaces, eye-gaze-based interaction with computers, and understanding of human visual information. More recently, various Head-Mounted Displays (HMDs) for Virtual Reality (VR) with built-in eye trackers have become commercially available. The Vive Pro Eye has been used for in-depth analysis of saccadic eye movements and in clinical ophthalmology. Unlike any other HMD-type eye tracker, the advanced slippage compensation in this device allows to maintain gaze accuracy and provides stable gaze measurement over a long period. We believe that this advantage may help in estimating accurate Three-Dimensional (3D) eye-gaze, and therefore it is necessary to investigate the accuracy of 3D gaze with the Vive Pro Eye. This study attempts to evaluate the accuracy of eye-gaze in two- and three-dimensions by measuring 3D eye-gaze when gazing at targets placed at different spatial positions with the Vive Pro Eye. Results showed that the relative position of the 3D eye-gaze to the 3D targets placed radially in 40-cm increments from 40 to 200 cm was confirmed. The accuracy of 2D eye-gaze measurements tends to decrease as the viewing angle increases, and consequently the accuracy of the corresponding 3D eye-gaze measurements also decreases. The 3D eye-gaze to the centrally located visual targets increases linearly, while the rest of the eye-gaze increases logarithmically.
Pages: 30 to 34
Copyright: Copyright (c) IARIA, 2022
Publication date: June 26, 2022
Published in: conference
ISSN: 2308-4138
ISBN: 978-1-61208-982-9
Location: Porto, Portugal
Dates: from June 26, 2022 to June 30, 2022