This invention discloses a method and
system for assessing the psychological state of adolescents based on multimodal
perception signals. The method includes: acquiring
facial expression signals, speech signals, facial temperature signals, and
heart rate signals of the subject; preprocessing each modality
signal and inputting it into a built-in
feature recognition model to obtain recognition results; binarizing and encoding the
facial expression and speech signals to categorize them into an overt emotion group, and the
heart rate and facial temperature signals into an implicit physiological group; weighting and summing the results according to preset modality weights to obtain a group composite value and comparing it with a preset group judgment threshold to obtain
intermediate group results; and using preset two-group cross-validation rules to logically combine the two intermediate results to generate a final auxiliary assessment result and rule path identifier. The method and
system of this application achieve full transparency and
traceability in the judgment process, effectively identify implicit state characteristics, and possess feedback-based closed-loop iterative optimization capabilities.