Vein recognition input and output device based on artificial intelligence and recognition method thereof

The invention relates to a vein recognition input and output device based on artificial intelligence and a recognition method thereof. The vein recognition input and output device comprises a shell, aPCB arranged in the shell, an image collector arranged on the front side of the shell and an interface assembly arranged on the shell. A microprocessor is arranged on the PCB; the microprocessor is used for preprocessing a palm vein image collected by the image collector to obtain a target palm vein image and extracting a palm vein feature set in the target palm vein image; the microprocessor isalso used for matching a palm vein feature set with each curvature grayscale feature matrix stored in a preset vein image database based on a palm vein matching method based on multi-feature thresholdfusion, and finding out a corresponding matching result to complete palm vein recognition. According to the invention, the palm vein which is an inherent physiological feature of a human body is utilized, and the artificial in