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J Biomech. 2003 Jul;36(7):999-1008.

Bias compensated least squares estimate of the center of rotation.

Author information

1
Department of Systems and Control, Information Technology, Uppsala University, P.O. Box 337, SE-751 05, Uppsala, Sweden

Abstract

It is shown that a recently published least squares method for the estimation of the average center of rotation is biased. Consequently, a correction term is proposed, and an iterative algorithm is derived for finding a bias compensated solution to the least squares problem.The accuracy of the proposed bias compensated least squares method is compared to the previously proposed least squares method by Monte-Carlo simulations. The tests show that the new method gives a substantial improvement in accuracy.

PMID:
12757809
[Indexed for MEDLINE]

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