Identifiable Decomposition of Submovements in Human Hand Trajectories
Sub-ID proposes a method to decompose human hand movements into discrete submovements by using spatiotemporal kernel correlation as a mathematical test for identifiability. It uses a three-stage process—Detect, Grow, and Refine—to recover ground-truth parameters in complex movements where existing methods fail. This allows researchers to extract physiologically grounded primitives with mathematical certainty.