CAS(ME)3

CAS(ME)3 is a large-scale spontaneous micro-expression database offering ~80 hours of videos (>8,000,000 frames), including 1,109 manually labeled micro-expressions and 3,490 macro-expressions, enabling effective validation while reducing database bias. It additionally provides depth modality (RGB-D) for multi-modal ME analysis and a large set of unlabeled videos as a platform for unsupervised methods, together with more ecologically valid elicitation paradigms and multi-signal recordings.