①Perhaps you have seen around the technology fans have a magical "supernormal capabilities": move your eyeballs, the screen will turn the page; blink your eyes, your cell phone will be able to take a picture; sleepy eyelids droop while driving, immediately ringing voice prompts? The phone will immediately ring with voice prompts? This is not because their eyes have been transformed, but because they use equipment equipped with a technology called "eye tracking". ② The principle of eye tracking technology is not complicated: when people's eyes look in different directions, there will be subtle changes in the eye, these changes will produce features that can be extracted, the computer can capture or scan the image to extract these features, so that real-time tracking of changes in the eye, predict the state of the user and the demand, and respond to achieve the purpose of controlling the device with the eyes. ③ The main equipment used at this stage includes infrared equipment and image capture equipment. In terms of accuracy, the infrared projection method has a relatively large advantage, probably accurate to within 1 cm on a 30-inch screen, supplemented by blink recognition, gaze recognition and other technologies, has been able to replace the mouse and touchpad to a certain extent, to carry out some limited operations. In addition, other image capture devices, such as cameras on computers or cell phones, can also achieve eye tracking with the support of software, but with varying degrees of accuracy, speed, and stability.
④ In daily life, the hottest carrier of eye-tracking technology is cell phones. For example, Samsung's last generation flagship GalaxyS3 can control the lock screen time by detecting the user's eye state, and as long as it detects that the user is staring at the cell phone screen, the screen will not be turned off even if the user does not perform any operation. The release of GalaxyS4 extends this feature even further: you can control the page scrolling up and down by eyeballs.
⑤ Is there any way to enable eye tracking on older devices? A Swedish company, Tobii, plans to launch a product this year that will allow older computers to access this new technology. This device is called Rex, is a computer peripheral device, as long as it is placed on the top of the screen, and then accessed through the USB port, the user will be able to use the line of sight to control the computer to complete some of the operations, such as manipulating the IE page scrolling, using the Windows 8 maps application. ⑥ In addition to computers and cell phones, cars are likely to be the first place you'll come across eye tracking technology. Both GM and Toyota have already invested quite a bit in this area. It can simulate the driver's field of vision in real time, alerting the driver to possible dangers in the blind spots of their vision; it also emits audible alerts when the driver's eyelids droop (sleepiness) or blinks less often (distraction), etc. An Australian company called Seeing Machines has recently developed a similar product, whereby as long as the driver closes his eyes for more than 1.6 seconds, an alarm will sound and the seat will vibrate.
⑦The development of eye-tracking technology is still plagued by difficulties. For example, it is not easy to make machines effectively recognize the true intent of human eye movements to determine whether it is an unconscious movement or a conscious change. Therefore, this technology is difficult to become the main way of interaction between humans and machines in the short term, but it is a good complement to the more mature human-computer interaction such as mouse, keyboard and touch, and has a wide range of application prospects in the fields of medical health, online education, psychological research and even criminal investigation.
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15.The object of this article is eye-tracking technology, the author is centered on which aspects of its description? (4 points) ① the principle of eye-tracking technology ② the main equipment used at this stage ③ the carrier (or application) of eye-tracking technology ④ the development of eye-tracking technology at present there are difficulties and the prospects for the application of (1 point for each point, ****4 points) 16 Which method of illustration is mainly used in the fourth paragraph of the article? What is the function? (3 points) Give examples (1 point). Specifying that the hottest carrier of eye-tracking technology is cell phone (2 marks). ***3 marks. 17 How does the punctuation word "may" in the underlined sentence reflect the characteristics of the illustrative language? (2 points)
"may" indicates estimation, plays a limiting role, indicating that in addition to computers and cell phones, cars are the earliest place you can come into contact with eye-tracking technology, which is only a kind of speculation, if removed, the language is too absolute, inconsistent with the original intent, reflecting the accuracy and rigor of the language of the illustrative text. (2 points)