“…At present, the application of sports posture detection technology in sports teaching and training, the construction of the playground sports posture detection effect analysis system, and the development of intelligent sports posture detection methods [7], are increasingly receiving the attention and research of experts in the field [8]. Sports posture detection effect analysis methods mainly include random forest, support vector machine, neural network, deep learning, heuristic optimisation algorithm and other methods [9]. Literature [10] extracted motion gesture detection features through questionnaires and other methods, and used the random forest method to construct a motion gesture detection method, which confirms the feasibility of intelligent motion detection technology; Literature [11] proposed an effect analysis method based on support vector machines by combing the analysis process of motion gesture detection and combining with machine learning algorithms; and Literature [12] designed a cloud-based multi-classification algorithm that has the ability to capture and analyse the leg and hip pressure features of human sitting state; literature [13] designed a Gaussian face algorithm and achieved significant accuracy on a face database; literature [14] used the KLT algorithm for face tracking, and trained a cascade classifier for face recognition, but the detection and recognition rate is low for people who are too high or too low; literature [15], after reflecting on the traditional sports gesture recognition method, discussed the joint position and face features as sports gesture recognition features, and proposed a neural network-based sports gesture recognition method; Literature [16] proposed three aspects of sports gesture recognition features, such as body joints, hand joints, and facial features, and meanwhile constructed a system for analysing the effects of sports gesture recognition, and proposed an effect analysis method based on deep learning algorithm; Literature [17] proposed a cascade classifier for detecting and recognizing faces, but the detection and recognition rate is low for tall and low people.…”