Computer-Aided English Pronunciation Accuracy Detection Based on Lip Action Recognition Algorithm
Ruihua Yu · 2022 Second International Conference on Artificial Intelligence and Smart Energy (ICAIS) · 2022
This paper studies computer-aided English pronunciation accuracy detection based on lip recognition. First, the face is detected using the skin color model and the geometric features of the face, and then a multi-level structure of the lip region detection algorithm is proposed to detect the lips, which is to achieve the lips. The coarse positioning to the fine positioning. The optical flow method is used to calculate the movement information of the lips between adjacent frames to accurately mark the time corresponding to the change of the lips. The marking task is completed by calculating the similarity between the learner's pronunciation and the standard speech, and Comparing the scores of learners' pronunciation with experts, calculating the correlation between the two, verifying the feasibility and effectiveness of the model increased by 7.8%.