Method and system for cleaning motion capture data

Details Method and system for cleaning motion capture data Method and system for cleaning motion capture data

2005-12-02

2008-01-29

Nguyen, Phu K. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

C345S475000, C382S106000

Reexamination Certificate

active

07324110

ABSTRACT:
A system and method for cleaning a set of motion capture data, wherein the data correspond to a set of point coordinates relating to a model but may include missing or inaccurate values. A subset of the motion capture data is identified that corresponds to valid points matching locations of corresponding points of the model, and a best set of model parameters is computed in such a manner as to minimize a norm of the valid points with respect to the model. A complete set of point coordinates is then predicted based on the best set of model parameters and a subsequent set of cleaned motion capture data. Actual points are inserted where validated, and the process is iterated until a specified criterion is met.

REFERENCES:
patent: 6492986 (2002-12-01), Metaxas et al.
patent: 7116330 (2006-10-01), Marshall et al.
Herda et al. “Skeleton-based motion capture for robust reconstruction of human motion”, Computer Animation 2000, Proceedings, pp. 77-83, May 2000.
I-Chen et al. “Extracting 3D facial animation parameters from multiview video clips”, IEEE Computer Graphics and Applications, vol. 22, No. 6, pp. 72-80, Nov. 2002.
Heap et al. “Towards 3D hand tracking using a deformable model”, IEEE Computer Society, pp. 140-145, Oct. 1996.
Grung et al. “Missing values in principal component analysis”, Chemometrics and Intelligent Laboratory Systems, vol. 42, No. 1-2, pp. 125-139, Aug. 1998.

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