KHFA: Knowledge-Driven Hierarchical Feature Alignment Framework for Subject-Invariant Facial Action Unit Detection - Zhao, Huijuan; He, Shuangjiang; Du, Congju; Liu, Linyun; Yu, Li (IEEE transactions on instrumentation and measurement, 2024)
Keywords: Affective computing; Alignment; Attention mechanisms; Coherence; Contrastive learning; Contrastive learning (CL); Correlation; Facial muscles; Feature extraction; hierarchical feature alignment; hybrid attention mechanism; Invariants; multilevel knowledge; Muscles; Physiological effects; Semantics; subject-invariant facial action unit (AU) detection