Gesture recognition method and device, equipment and medium

The invention provides a gesture recognition method and device, equipment and a medium, and the method comprises the steps: S1, obtaining a single-frame image, detecting hand three-dimensional key points of a hand in the single-frame image, and obtaining a hand three-dimensional key point set P; s2, rotating the hand three-dimensional key point to a standard space angle to obtain a standard space angle point set Q; s3, calculating a three-dimensional vector of a hand joint; s4, calculating cosine similarity among the three-dimensional vectors of the hand joints; and S5, matching the same gesture template according to the joint cosine similarity, and outputting a matching result. The gesture recognition reliability and stability of the algorithm can be guaranteed under the condition that only a single gesture template picture data set is needed, and therefore a technical basis is provided for user-defined gestures and gesture updating. 本发明提供一种手势识别方法、装置、设备和介质，方法包括：S1、获取单帧图像，检测单帧图像中手部的手部三维关键点，得到手部三维关键点集合P；S2、旋转所