Deterministic 3D human pose estimation using rigid structure

摘要: This paper explores a method, first proposed by Wei and Chai [1], for estimating 3D human pose from several frames of uncalibrated 2D point correspondences containing projected body joint locations. In their work boldly claimed that, through the introduction rigid constraints to torso hip, camera scales, bone lengths absolute depths could be estimated finite number (i.e. ≥ 5). this we show claim false, demonstrating in principle one can never estimate these parameters frames. Further, demonstrate approach is only valid sub-structures (e.g. torso). Based on analysis propose novel using deterministic structure motion based assumptions rigidity body's torso. Our provides notably more accurate estimates substantially faster than Chai's approach, unlike original, solved as least-squares problem.