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Body movement emotion recognition method based on emotional latent space learning and CLIP model
Hong LUO, Yujie SHEN, Juanjuan CHEN, Dan WANG
Journal of Computer Applications    0, (): 44-49.   DOI: 10.11772/j.issn.1001-9081.2024040529
Abstract24)   HTML1)    PDF (2361KB)(1)       Save

The key to body movement emotion recognition lies in extracting emotional features existed in human body movements. To solve the problems of poor emotional feature learning capability and difficulty in improving emotion recognition accuracy in existing models, a body movement emotion recognition method based on Emotional Latent Space Learning (ELSL) and Contrastive Language-Image Pre-training (CLIP) model was proposed. Firstly, CLIP model was introduced to improve the emotional feature learning capability of the model. Secondly, for the fine-grained multi-label emotion classification task, ELSL method was proposed. By learning discriminative mappings from emotional latent space to various subspaces, the subtle differences between emotion categories and the feature information beneficial to the classification of each emotion category in various emotional subspaces. Experiments were carried out on real-world open scenarios-oriented Body Language Dataset (BoLD) The results demonstrate that the proposed method makes use of the advantages of CLIP model and latent space learning in feature learning effectively, leading to significant performance improvement. In specific, compared to Movement Analysis Network (MANet), the proposed method has a 1.08 percentage points increase in mean Average Precision (mAP) and a 1.32 percentage points improvement in mean Area Under Receiver Operating Characteristic Curve (mRA).

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