With the development of technology, 3D face recognition technology has gradually matured. Face recognition technology provides a non-contact unlocking and authentication method with a stronger sense of technology and wide application.More companies are beginning to adopt smart door lock products with face recognition as the main recognition technology. While face recognition technology brings application convenience to door locks, it also puts forward new requirements for power consumption processing. ToF Sensor can well assist in low-power processing of face recognition.
To choose a suitable ToF Sensor for face recognition applications, common parameters to be considered include Operating Range, Sample Rate, FOV, Power Consumption etc.
ToF Sensor is used for face recognition. The application of smart door locks is mainly in two aspects, one is to detection human body detection, and the other is to awakening of the face recognition system. First of all, let’s talk about human body detection. In the face recognition door lock, due to the large power consumption of the face recognition module, the dynamic power consumption current can reach hundreds of mA. In order to save power consumption, the module can be woken up through an external interrupt. Consider using ToF Sensor, the typical power consumption of ToF Sensor is in μA level, which can save system power consumption.
And when someone is detected in the ToF Sensor, an interrupt can be triggered in advance to wake up the face recognition module, saving system response time and improving user experience.DOMI ToF Sensor can provide the corresponding filtering algorithm to support development.
