Application of three-dimensional videography to human motion studies: Constraints, assumptions, and mathematics

George T Rab

doi:10.1117/12.942204

Application of three-dimensional videography to human motion studies: Constraints, assumptions, and mathematics

George T Rab

Orthopaedic Surgery

Research output: Contribution to journal › Article › peer-review

Abstract

Three-dimensional human motion analysis has been used for complex kinematic description of abnormal gait in children with neuromuscular disease. Multiple skin markers estimate skeletal segment position, and a sorting and smoothing routine provides marker trajectories. The position and orientation of the moving skeleton in space are derived mathematically from the marker positions, and joint motions are calculated from the Eulerian transformation matrix between linked proximal and distal skeletal segments. Reproduceability has been excellent, and the technique has proven to be a useful adjunct to surgical planning.

Original language	English (US)
Pages (from-to)	31-34
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	832
DOIs	https://doi.org/10.1117/12.942204
State	Published - Feb 4 1988

ASJC Scopus subject areas

Applied Mathematics
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Computer Science Applications

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