Eye tracking headgear can help people with disabilities
2022-07-26

According to foreign media reports, for disabled individuals who are unable to speak, move their arms, hands, or even their heads, computer-connected eye tracking systems allow communication through eye movements. However, this system has some drawbacks, and the new experimental eye tracking headworn device prototype is said to solve these problems.


Christopher McMurrough, a lecturer in computer science and engineering at the University of Texas Arlington, stated that the calibration of conventional eye tracking systems requires the assistance of trained experts. In addition, the processing of tracking eye movements usually has lag and does not allow instantaneous communication.


However, the new headwear device he invented would not have these problems. The prototype developed by McMurrough is equipped with a forward looking 3D depth mapping camera at the top and a binocular tracking device pointing towards the wearer's eyes. In addition, the program he designed creates a 3D map of the environment in front of the user based on the output of the camera. By combining this data with the output of the eye tracker, the direction of user gaze can be inferred, allowing the program to determine what they see in a 3D map.


Therefore, the system should be able to perform some tasks, such as activating the control of an electric wheelchair, or instructing the robot arm to grasp objects such as a bottle of water - all the user will do is look at those things.


My interest in this technology stems from my mother-in-law, who has difficulty using eye tracking devices as an ALS patient, 'McMurrough said. The latest version of our device can be worn as a pair of ski goggles, with a camera on the top and an eye tracker embedded in the lenses, allowing patients to use it for a long time while carrying it around


This technology has been patented and can also be used in fields such as gaming, augmented reality, and monitoring medical environments that affect eye movement.