Kinect-based respiratory movement monitoring method and monitoring system

The invention discloses a Kinect-based respiratory movement monitoring method and monitoring system. The respiratory movement monitoring system comprises an image acquisition module, an image registration module, a target recognition module, a target tracking module and a depth data processing module. The image acquisition module acquires a color image and a depth image by using a KinectSDK; the image registration module generates a registration image by using the coordinate transformation matrixes of the color camera and the depth camera of the Kinect; the target identification module uses amedian filtering algorithm to reduce noisy points in the registration image, uses a Hough circle detection algorithm to feed back a target area, and finally combines RGB values in the area to obtain the position of the target; the target tracking module feeds back depth data of a target area in real time by using position information fed back by a target detection algorithm and a Camshift target tracking algorithm; and th