Compared with the traditional 2D camera which can only obtain the plane image information, the 3D tof camera can obtain the depth information of the photographed object, that is, the three-dimensional position and size information. There are many application scenarios for 3D cameras, including biometrics, three-dimensional modeling, human-computer interaction, and enhanced AR/VR experience. In 2017, Apple installed the front 3D sensing camera for the first time in the iPhoneX series to realize face recognition unlocking and mobile payment functions, which opened up the mobile phone 3D imaging boom. Under the benchmarking effect of Apple mobile phones, 3D imaging technology quickly opened up the consumer electronics application market. The 3D tof camera, as the entrance to the collection of three-dimensional information, has gradually become the standard configuration of smart phones.
3D tof camera technology uses infrared emission and receiving modules to collect in-depth data on the location and details of the shooting object, and truly restore the real scene. There are currently three main implementation methods: structured light, time-of-flight (ToF), binocular stereo vision, structured light and ToF belong to the active acquisition scheme, and binocular stereo vision belongs to the passive acquisition scheme.
3D tof camera is widely used,in addition to smart phones, 3D imaging and sensing technology will also play an important role in smart terminals such as VR/AR and car cameras. With the help of ToF technology, VR/AR products can realize 3D scene reconstruction, motion capture, gesture recognition and other functions; with the continuous improvement of the intelligent level of the car, the car lens will continue to develop, and its functions will become more and more abundant. The use of 3D tof camera technology can The vehicle-mounted camera has functions such as pedestrian, road obstacle recognition, gesture recognition, etc., which increases the safety of driving in complex scenes, and at the same time enhances the driving experience.
