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More than 95 percent of our test subjects were able to use our systems without any problems. Our eye trackers stay fully operative with most glasses and contact lenses as well. The systems typically track 90 percent of the human population.
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Our eye tracking systems accommodate a wide variation in the eye image, such as pupil size and pupil and iris brightness, and they accommodate to most glasses and contacts. Reliability refers to the range of operational conditions under which our eye tracking systems are able to measure gaze point data. The eye tracking systems we offer produce a constant data stream to to highly accurately detect eye movements such as fixations and saccades. Typically, when a person is about 60 cm from the camera, and looking at a point toward the top of the computer screen head motions of 2.5 cm along the camera Z axis result in predicted gaze point variations of about 1,9 cm.Īll our eye trackers use the patented Asymmetric Aperture Method to measure variations in the range between the camera and the cornea of the eye, and they use the range information to minimize gaze point tracking errors resulting from longitudinal head motions. As the head moves toward the camera the predicted gaze point (if uncorrected for range) moves radially away from the camera, and as the head moves backward, the predicted gaze point moves radially in toward the camera. The accuracy of video eye trackers is typically sensitive to head motion along the camera axis. To achieve high gaze point tracking accuracy, the image processing algorithms in our eye tracking systems explicitly accommodate several common sources of gaze point tracking error. There are also the experiences and suggestions of our customers from all scientific fields, which we use in our eye tracking solutions. In this way the newest insights from various fields, like psychology or IT, influence the development. The basis of our eye tracking analyses is close cooperation with research institutions all over the world. Thus they are especially suitable for research with subjects being observed in their natural work environment, without disturbing eye tracking glasses, headrests or wires. Our eye tracking systems work „remote“, it means completely contact-free. Thus they are especially suitable for experiments where subjects should work in an unobstructed environment. Our eye trackers work „remote“, which means you don‘t have to attach any equipment to the participants. We incorporate this high quality technology into complete turnkey solutions allowing you to get started immediately. The core technology has been developed by our partner LC Technologies, Inc. The foundation of our work has always been a strong relationship with research institutions around the world allowing us to incorporate latest findings from various research areas such as psychology and computer science. Our eye trackers are characterized by highest accuracy, ease of operation and analysis methods which undergo continuous development.