Heart rate measurement stability augmentation method, device and equipment based on facial image processing

The invention relates to the technical field of intelligent nursing, solves the problems of large forehead area tracking error and low heart rate measurement accuracy in the prior art, and provides a heart rate measurement stability augmentation method, device and equipment based on facial image processing. The method comprises the following steps: acquiring a real-time image containing a human face in a nursing scene; performing face detection and face tracking on the real-time image, and determining initial forehead position information and face key point position information; determining reference point position information and reference point depth information according to the face key point position information in combination with a preset depth calculation model; correcting the initial forehead position information according to the reference point position information and the reference point depth information, and determining target forehead position information; according to the target forehead positio