Hierarchical compositional representations for few-shot action recognition

Changzhen Li, Jie Zhang, Shuzhe Wu, Xin Jin, Shiguang Shan

Abstract: Highlights•Hierarchical compositional representations include Sub-action and SAS-action.•SAS-action focuses on body parts and action-related cues.•Earth mover’s distance is employed to measure fine-grained patterns.•Experiments on HMDB51, UCF101, and Kinetics verify our effectiveness.