TFN-FICFM: sEMG-Based Gesture Recognition Using Temporal Fusion Network and Fuzzy Integral-based Classifier Fusion

Surface electromyography (sEMG)-based gesture recognition is a key technology in the field of human–computer interaction. However, existing gesture recognition methods face challenges in effectively integrating discriminative temporal feature representations from sEMG signals. In this paper, we propose a deep learning framework named TFN-FICFM comprises a Temporal Fusion Network (TFN) and Fuzzy Integral-Based Classifier Fusion method (FICFM) to improve the accuracy and robustness of gesture recognition. Firstly, we design a TFN module, which utilizes an attention-based recurrent multi-scale convolutional module to acquire multi-level temporal feature representations and achieves deep fusion of temporal features through a feature pyramid module. Secondly, the deep-fused temporal features are utilized to generate multiple sets of gesture category prediction confidences through a feedback loop. Finally, we employ FICFM to perform fuzzy fusion on prediction confidences, resulting in the ultimate decision. This study conducts extensive comparisons and ablation studies using the publicly available datasets Ninapro DB2 and DB5. Results demonstrate that the TFN-FICFM model outperforms state-of-the-art methods in classification performance. This research can serve as a benchmark for sEMG-based gesture recognition and related deep learning modeling.