With the development of science and technology, we often hear the statement of 3D ToF camera, so what is 3D ToF camera, and the device that uses ToF technology to image is called 3D ToF camera. The ToF camera uses continuous wave modulation, and the distance information can be obtained by comparing the phase difference between the object's return signal and the emitted signal, and pixel-level measurement can be achieved.
ToF chip is the core of the 3D ToF camera. Each pixel of the ToF chip records the phase of the incident light between the camera and the object. The sensor structure is similar to an ordinary image sensor, but it is more complex than an image sensor. It contains 2 or more shutters to sample reflected light at different times.
The advantage of the ToF chip is that the depth information can still complete traditional applications such as segmentation, marking, recognition, and tracking of target images. After further processing, it can complete applications such as 3D modeling, and can quickly complete target recognition and tracking.
Compared with stereo cameras or triangulation systems, ToF cameras are small in size, similar to the size of ordinary cameras, and are very suitable for some occasions that require light and small cameras. 3D ToF cameras can quickly calculate depth information in real time, reaching tens to 100fps.
