身障者用パソコン入力のための注視点検出機能付きHMD

概要

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Physically handicapped people such as amyotrophic lateral sclerosis (ALS) patients, who can move only their eyes, have difficulty transmitting their intentions to the surrounding people. As an intention transmission device that a user can operate using eye movements, we experimentally produced a head-mounted display (HMD) with the eye gaze detection function. Conventional HMDs of this type are large, and the eye-gaze calibration procedure must be repeated if a user moves relative to the HMD. To solve these problems, the methodology for eye-gaze detection, and the optical systems to detect eye gaze and to present the displayed image have been improved and are described in this paper. The experimental results show that the developed HMD can maintain precise eye gaze detection even if the relative position between the finder and the eye changes.
2009-05-01