A least-squares algorithm for the equiform transformation from spatial marker co-ordinates.
The present paper describes an algorithm for estimating the translation vector and the rotation matrix of a moving body from noisy measurements on the spatial co-ordinates of at least three non-collinear markers. A sensitivity analysis of the estimated parameters and of the helical axis is presented in terms of characteristics of the marker distribution. The implementation of the proposed algorithm in a FORTRAN-subroutine is appended.
Veldpaus
F E
FE
Faculty of Mechanical Engineering, Eindhoven University of Technology, The Netherlands.
Woltring
H J
HJ
Dortmans
L J
LJ
D000465:Algorithms; D001696:Biomechanical Phenomena; D001842:Bone and Bones / Q000502:physiology*; D006801:Humans; D008962:Models, Theoretical; D009068:Movement; D012984:Software