Intention understanding method and system for elderly accompanying robot

The invention provides an intention understanding method and system for an elderly accompanying robot, and the method comprises the steps: obtaining a gesture image and posture information of an elderly person in real time, and carrying out the image segmentation on the gesture image and posture information to form a gesture data set and a posture data set respectively; inputting the gesture dataset into a trained neural network model for gesture recognition to obtain a gesture recognition probability set, and inputting the posture data set into a trained hidden Markov model for posture recognition to obtain a posture recognition probability set; performing intention fusion on the gesture recognition probability set and the posture recognition probability set based on a fusion algorithm of a confusion matrix, and calculating weight proportions under different intentions when the two probability sets are fused by using F1 scores under different intention classifications, so as to determine a final identificati