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

George T Rab

Research output: Contribution to journalArticle

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 languageEnglish (US)
Pages (from-to)31-34
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume832
DOIs
StatePublished - Feb 4 1988

Fingerprint

mathematics
Sorting
markers
Skin
Kinematics
Trajectories
Planning
Three-dimensional
Motion
gait
Motion Analysis
Transformation Matrix
Gait
classifying
Skeleton
musculoskeletal system
smoothing
planning
Smoothing
kinematics

ASJC Scopus subject areas

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

Cite this

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