Supporting Research Materials for "Bone-Constrained Reconstruction of Missing Joints in Dance Motion Sequences"

This record accompanies the manuscript “Bone-Constrained Reconstruction of Missing Joints in Dance Motion Sequences” and provides supporting research materials for its computational analysis. The study investigates offline reconstruction of missing three-dimensional joint trajectories using publicly available AIST++ dance annotations. Evaluation covers 451 sequences from ten held-out dancers, eight simulated missingness conditions and three paired mask seeds. The analysis compares classical temporal reconstruction methods, candidate fusion and refinement using temporal and bone-length information, with component ablations and a comparison under identical refinement constraints. Positional errors are expressed in body-normalised coordinates and evaluated at artificially hidden, originally valid joint positions. The findings concern agreement with video-reconstructed reference annotations under controlled missingness. They do not establish physical measurement accuracy or performance under real sensor occlusions. AIST++ is the source dataset for this study; this record accompanies the secondary analysis and does not represent a newly collected motion-capture dataset.