Eye tracking is a scientific application technology. Users can flip pages without touching the screen. In principle, eyeball tracking mainly studies the acquisition, modeling and Simulation of eyeball movement information, and is widely used. In addition to infrared equipment, the equipment to obtain eyeball movement information can also be image acquisition equipment, or even a camera on a general computer or mobile phone, which can also achieve eyeball tracking with the support of software.
Eye-Tracking
Eye tracking is a scientific application VR technology. Users can flip pages without touching the screen. In principle, eyeball tracking mainly studies the acquisition, modeling and VR Simulation of eyeball movement information, and is widely used. In addition to infrared equipment, the equipment to obtain eyeball movement information can also be image acquisition equipment, or even a camera on a general computer or mobile phone, which can also achieve eyeball tracking with the support of software.
Basic introduction
Eye tracking technology is a scientific application technology, one is to track according to the changes of the features around the eyeball, the other is to track according to the changes of iris angle, the third is to actively project infrared rays and other beams to the iris to extract features. Eye tracking technology is an important technology in contemporary psychological research, widely used in experimental psychology, applied psychology, engineering psychology, cognitive neuroscience and other fields.
Scientific principles
When a person's eyes are looking in different directions, there will be subtle changes in the eyes. These changes will produce features that can be extracted. The computer can capture or scan these features to track eye changes in real time, predict user's status and needs, and respond to them, so as to control the equipment with the eyes. Yes.
support equipment
The main equipment of eye tracking includes infrared equipment and image acquisition equipment. In terms of accuracy, infrared projection has a relatively large advantage, about 30 inches of the screen can be accurate to less than 1 centimeter, supplemented by blink recognition, gaze recognition technology, to a certain extent, can replace the mouse, touchpad, some limited operations. In addition, other image acquisition devices, such as cameras on computers or mobile phones, can also achieve eye tracking with software support, but there are differences in accuracy, speed and stability.
Eye scan to see eBook
Application carrier
Mobile phone
In daily life, the most popular carrier of eye tracking technology is mobile phones. Samsung and LG have launched products with eye tracking technology. For example, the Samsung Galaxy S III, Samsung's last-generation flagship, can control the lock-in time by detecting the state of the user's eyes, so long as it detects that the user is staring at the phone screen, the screen won't close even if the user doesn't do anything. The launch of the Samsung Galaxy III extends this feature further: you can scroll up and down pages with your eyeballs.
In addition, LG's Optimus handset also supports controlling video playback through eye movement, and the video player pauses automatically until the user shifts his view back to the screen.
Computer
In 2013, a Swedish company Tobii plans to launch a product that allows old computers to access eye tracking. The device, called Rex, is a computer peripheral device, as long as it is placed on the top of the screen, and then through the USB interface, users can use the line of sight to control the computer to complete some operations, such as manipulating IE page scrolling, using Windows 8 map applications.automobile
Besides computers and cell phones, cars are also likely to be the places where people first contact eye-tracking vr technology. GM and TOYOTA have already made great investments in this area. It can simulate the driver's vision in real time and remind the driver of the possible dangers of blind spots; when the driver's eyelids droop (sleepy) or blink less (distracted), it will also issue a sound reminder.
Eye-Tracking
Prospects for development
There are still many difficulties in the development of eye tracking technology at present (2013). For example, it is not easy for a machine to recognize the true intentions of human eye movements effectively to determine whether they are unconscious movements or conscious changes. Therefore, this technology is difficult to become the main way of human and machine interaction in the short term, but it is a very good complement to the mouse, keyboard, touch and other mature human-computer interaction, and in the medical health, online education, psychological research and even criminal investigation field, has a wide range of applications.
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