Eye admire communication
The eye gaze communication system is a communication system that is very useful to blind people with the help they can use such a communication system to perform their daily activities. Eye tracking is a process of measuring the point of view (where you look) or a head-related eye movement. The eye monitor is an eye location and eye movement measurement device. For visual system, psychology, behavioral language, and product design work, eye trackers are used. There are a variety of eye movement measurement methods available. The eye gaze system is a control system that allows you to switch with your ears. The eye gaze System is a communication and control system that is controlled directly by vision.
Uses of eye tracking:
Easier for all types of users to adjust the settings. ‘Application of calibration’
User using one of four keys, then printing or speaking.’Typewriter’
TURN pages in the computer screen by viewing ‘ up or down. ‘Read text’
TEACH new users with displays that are streamlined.’Displays for tea
The process where used in eye tracking system
As a user sits in front of the eye gaze monitor, one of the user’s eyes is observed by a specialized video camera mounted under the monitor. In the eye gaze system’s computer, advanced image processing technology continuously analyzes the eye’s video image and decides where the user looks on the screen. There is nothing attached to the head or body of the user.
The Eye gaze system uses the method of pupil-center / corneal-reflection to determine where the user sees the screen. As an infrared-sensitive video camera, mounted under the screen of the device, it takes 60 images per second of the eye of the user. The eye is illuminated by a low-power, infrared light emitting diode (LED), installed in the center of the camera lens. The LED shows a little light from the cornea of the eye’s surface. The light also shines through the pupil, reflecting off the retina, the eye’s back surface, and making the pupil appear white. The bright-pupil effect improves the pupil’s perception of the lens and enables the position of the pupil’s core for the image processing functions. The machine determines the gaze point of the human, i.e. the coordinates of where he appears on the monitor, based on the pupil center’s relative positions and corneal reflection within the eye’s video image.
To order to be able to project its gaze-point correctly, the eye gaze system must learn some physiological properties of the user’s body. By performing a calibration procedure, the system learns these properties. By fixing his eyes on a small yellow circle on the monitor and watching it as it moves around the display, the user calibrates the device. The calibration process usually takes about 15 seconds, and if the client moves away from the eye gaze device and returns later, he does not need to re-calibrate.