Indoor person dynamic positioning method and device based on image recognition and medium

The invention provides an indoor personnel dynamic positioning method and device based on image recognition and a medium, and relates to the technical field of indoor positioning, and the method comprises the steps: S1, when a rotatable camera rotates to an angle alpha, carrying out the interception of a target image from a video stream shot by the rotatable camera, obtaining an optimal single mapping transformation matrix H between the target image marked by the angle alpha and the bottom surface of the room; s2, a YOLO model used for recognizing a target image shot by the rotatable camera is obtained, the target image is recognized through the YOLO model, and a recognition frame of a person in the target image is obtained; s3, marking the center point of the lower edge X of the recognition frame as a coordinate point (M, N) of a person on the target image, and mapping to obtain a coordinate point (M ', N') of the person on the bottom surface of the room through an optimal single mapping transformation matri