Ganzin Technology, Inc.

National Taiwan University

Yi-Heng Wu

Shao-Yi Chien

Po-Jung Chiu

Kuan-Ling Liu

Kuei-An Li

Liang Fang

Chia-Ming Chang

Yi-Hsiang Chen

Ming-Yi Tai

During an eye-tracking operation of an optical system, one or multiple eye images are captured. One or multiple gaze points of the user are computed based on the one or multiple eye images of the user. A user interface containing one or multiple UI elements is provided based on the one or multiple gaze points of the user. A performance map of the eye-tracking operation is provided based on the one or multiple eye images of the user. At least one UI element is adjusted based on the performance map of the eye-tracking operation.

Optical system providing accurate eye-tracking and related method

An optical system includes an eye-tracker and a head-mounted display for providing accurate eye-tracking in interactive virtual environment. The eye-tracker includes a sensor module captures one or multiple eye images of a user. The head-mounted display includes a processor and a display for presenting the user interface. The processor provides a user interface which includes one or multiple UI elements based on one or multiple gaze points of the user which are computed based on the one or multiple eye images, acquires the distance between an estimated gaze point of the user and each UI element, acquires the score of each UI element based on the distance between the estimated gaze point and each UI element, and sets a specific UI element with a highest score as the target UI element associated with the estimated gaze point of the user.

In a calibration process for an eye-tracking application, a calibration mark is displayed on an instrument, and the user is instructed to keep the gaze focused on the calibration mark. Next, a dynamic image is displayed on the instrument, and the user is instructed to move his head or the instrument as indicated by the dynamic image while keeping the gaze focused on the calibration mark. The ocular information of the user is recorded during the head movement or the instrument movement for calibrating the eye-tracking application.

Method of calibrating eye-tracking application and related optical system

In a dual mode eye tracking method and system, an infrared (IR) ray is emitted to perform an IR tracking mode and visible light (VL) calibration. When a first error between a VL associated gaze position and an IR associated gaze position is less than a first threshold, the IR ray is turned off to perform a VL tracking mode. In a VL checking period, when a second error between a VL associated gaze position and an IR associated gaze position is less than a second threshold, the IR ray is turned off to continue the VL tracking mode.

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Tainan, Taiwan

Yi-Heng Wu