BoLeRO: A principled Technique for Including Bone Length Constraints in Motion Capture Occlusion Filling

Lei Li	James McCann	Christos Faloutsos	Nancy Pollard

The ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA 2010) (2010)

Given a motion capture sequence with occlusions, how can we recover the missing values, respecting bone-length constraints? Recent past work uses Linear Dynamical Systems (LDS), which work well, except for occasionally violating such constraints, and thus lead to unrealistic results. Our main contribution is a principled approach for preserving such distances. Specifically (a) we show how to formulate the problem as a constrained optimization problem, using two variations: hard constraints, and soft constraints; (b) we show how to efficiently solve both variations; (c) we demonstrate the realism of our approaches against competitors, on real motion capture data, illustrating that our ’soft constraints’ version eventually produces more realistic results.

Lei Li, James McCann, Christos Faloutsos, Nancy Pollard (2010). BoLeRO: A principled Technique for Including Bone Length Constraints in Motion Capture Occlusion Filling . The ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA 2010).

@article{Li:SCA2010:bolero,
author = {Lei Li and James McCann and Christos Faloutsos and Nancy Pollard},
title = {BoLeRO: A principled Technique for Including Bone Length Constraints in Motion Capture Occlusion Filling
},
journal = {The ACM SIGGRAPH / Eurographics Symposium on Computer Animation (SCA 2010)},
year = {2010},
}