Low-Power Face Identification Method Capable of Controlling Power Adaptively

A low-power face identification system comprising:

• a transceiver configured to emit at least one first light signal to an object and receive at least one second light signal reflected by the object;
• an artificial intelligence chip coupled to the transceiver;
• a decoder coupled to the transceiver and the artificial intelligence chip, and configured to receive the at least one second light signal, decode the at least one second light signal to generate a decoded light signal, and transmit a part of the decoded light signal to the artificial intelligence chip;
• an image converter coupled to the decoder and the artificial intelligence chip, and configured to convert a two-dimensional image of the object to a three-dimensional image of the object according to the decoded light signal, and output a three-dimensional face image from the three-dimensional image of the object when a two-dimensional face image is successfully detected and recognized from the two-dimensional image of the object by the artificial intelligence chip;
• an encoder coupled to the image converter and configured to encode data of the three-dimensional face image after the three-dimensional face image is generated;
• wherein after the part of decoded light signal is received by the artificial intelligence chip, the artificial intelligence chip disables the image converter when the two-dimensional face image is undetected or unrecognized.