Description and Application

        TOF is the abbreviation of Time of flight, time of flight 3D imaging, is by sending light pulses to the target continuously, and then using the sensor to receive the light returned from the object, by detecting the time of flight of the light pulses to get the distance to the target. Time of flight method is divided into direct time of flight method and indirect time of flight method, D-ToF needs to configure a complex and has the limitation of time resolution device, I-ToF's operation is more simple: the light source is synchronized with the image sensor, and the pulse of light is emitted in the same phase as the shutter of the camera, and the time of flight of the photon is calculated by using the desynchronization effect of the light pulse, and the distance between the emitting point and the object can be deduced.