Apple’s latest iPhone 12pro and 12pro Max are equipped with new lidar scanners, which provide ar capabilities that allow people who are blind or have low vision to see how close people are to themselves. < / P > < p > the iPhone 12pro and 12pro Max use a new lidar sensor on the back of the phone to detect distance between other people and users. Apple calls it “human testing.”.
lidar is a depth sensor that can be used to enhance the use of applications and act as the “eye” of self driving cars. Now, apple is using it in obstacle detection environments to help people with vision problems better “see” the world around them. < / P > < p > for example, when a blind person is shopping in a supermarket, they can turn on the “body detection” feature on the iPhone 12 pro to let them know when they need to queue up at the checkout counter. Or someone walking on the sidewalk will be warned by their cell phone when they pass by. < / P > < p > similarly, blind people or people with low vision can use this function to judge whether they are close to a table or whether there are seats on public transport. They can also maintain a proper safety distance when they pass the health check or security check line at the airport. < / P > < p > < p > “human detection” can judge the distance between other people and users in feet or meters, and its working distance can reach 5 meters. Anyone in the view of the iPhone 12pro wide-angle camera can be detected with this feature. If there are multiple people nearby, the detection will give the distance to the person closest to the iPhone user. < / P > < p > this technology will be available as part of in the next few weeks. Apple released a beta version of the software for developers on Friday. < / P > < p > according to a report by the World Health Organization last year, at least 2.2 billion people around the world have visual impairment or blindness. According to the statistics of state authorities, China is the country with the largest number of blind people in the world, accounting for about 5 million, accounting for 18% of the world’s blind population. Every year, 450000 blind people are added to China. Experts point out that if the current trend continues to remain unchanged, the number of blind people in China is expected to quadruple by 2020. For decades, Apple has been focusing on obstacle detection. It has added features to its technology to help visually impaired people navigate automatically on the iPhone’s touch screen and allow people with dyskinesia to click on the interface’s icons. “Technology should be accessible to everyone,” Apple CEO Tim Cook said at the time. Apple, in particular, has long been committed to helping the blind or the visually impaired. ” It is a new confirmation of this sentence. < / P > < p > “human detection” uses Apple’s arkit character occlusion function to detect whether someone is in the view of the camera and estimate the distance of the person. Lidar scanners make it more accurate. It emits short pulses of light, measuring the time it takes for light to return to the lidar scanner. Much criticized is that the new feature doesn’t work in dark or low light conditions. < / P > < p > all sensing is real-time, and users can get feedback from the detection in four ways, which can be used in any combination. All of these can be customized in settings. < / P > < p > one way to get information about a person’s distance is to read it out by voice. As others get closer, the phone will shout out “15, 14, 13” and so on. It provides users with a measurement interval of half a meter distance. < / P > < p > iPhone 12 Pro users can also use two distinct audio tones to set the threshold distance. One is when people are outside this distance, the other is when people are very close to users. The default threshold is set to 2 meters. < / P > < p > the third type of alarm is via tactile feedback. The farther away people are, the lower and slower the vibration of touch is. The closer you get, the faster the tactile buzz. At present, tactile feedback can only be done through mobile phones, not through apple watches. < / P > < p > there is also an option to see the readings on the screen. In this case, it will show the distance of the person and indicate the person’s position on the screen with a dashed line, which is not available for blind people, but only for people with impaired vision. < / P > < p > currently, iPhone can only detect people, but developers can use this technology to make up for the shortcomings of iPhone 12. < / P > < p > we can see that Apple iPhone 12 promotes laser scanning technology that can help the blind. It has advantages and obvious disadvantages, such as unable to measure at night, unable to detect objects, fast power consumption, etc. ASMC, a lithography maker, was one of TSMC’s 14 top suppliers last year