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Essay On Eye Tracking Technology

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For decades, a key issue that lies in science and engineering has been the manner by which human could interface with a PC or machine in a characteristic manner. But over the years technology is evolving in many areas. New technologies act as point of interest to many people . This report covers hands-free interfaces , how people with disabilities use, interact with such technologies. Some current applications and techniques discussion, challenges , with some examples for each topic.

Introduction:
As human hands have a complex life structures which could make exact control developments, hand development are standout amongst the most widely recognized ways that are connected recently .it is also important to create intelligent human machine interfaces for disabled …show more content…

in which led emits infrared light and camera that capture the image from which the pupil of the eyes reflect or detect and based on their positional relationship, the orientation of sight is calculated. An on-axis light source will result in a ‘‘bright pupil’’ effect, making it easier for the analysis software to recognize the pupil in the image. The effect is similar to the red-eye effect caused by flash in a photograph. The off-axis light results in dark pupil’’ images. Both will not disturb viewing or affect pupil dilation since IR light is invisible to the human eye .

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videooculography (VOG)

A video-based eye tracking system can be either used in a remote or head-mounted configuration. A typical format consists of a video camera that records the movements of the eyes and a computer that saves and analyses the gaze data.
In remote systems, the camera is typically based below the computer screen, while in head-mounted systems, the camera is attached either on a frame of eyeglasses or in a separate helmet.

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