ToF sensing technology calculates the depth information of the object by calculating the flight time of infrared light. error mainly comes from the system error of the device, and the error is relatively constant.The accuracy of structured light depends on the reflected light, and the error is small at close distances, but as the distance increases, the error increases exponentially.
ToF sensor measurement distance can be adjusted, as long as the optical intensity, optical viewing angle, and transmitter pulse frequency are changed, it is suitable for long-distance somatosensory recognition, such as body movements, gestures, etc., and also suitable for navigation, monitoring, mobile robots and other application scenarios. The potential application scenarios are broad.
Structured light needs to decode the coded structured light, the complexity is higher than the ToF sensor of direct ranging.
ToF sensor does not require subsequent processing, so delays can be avoided and the algorithm requirements are lower. In addition, the ToF solution can achieve very high frame rates, supporting hundreds of fps.
Auto-assisted driving requires fast response and long-distance detection. 3D ToF sensing technology has the above characteristics, so it is more suitable for car-assisted driving. For example, DOMI DMOM2501A uses 3D TOF technology to monitor people and objects in the car, and has gesture detection function.
