Facial dyskinesia quantitative evaluation method and system

The invention discloses a facial dyskinesia quantitative evaluation method and system, and relates to the technical field of facial dyskinesia evaluation.The facial dyskinesia quantitative evaluation method includes the steps that facial action videos of a subject are collected, facial key point grids are extracted and subjected to normalization processing, and then motion feature information is calculated on sub-grids; finally, the facial movement dysfunction detection algorithm is used for analysis and recognition, no invasive tool or equipment is needed to evaluate the facial movement dysfunction, the requirement for manual intervention is reduced, the evaluation efficiency and consistency are improved, a more objective and accurate evaluation result can be provided, and the method is suitable for popularization and application. Through grid speed difference curve change comparison, the facial dyskinesia of the patient is quantified, the part, the type and the degree of the dyskinesia are detected and reco