References 
Bianchi, G. Gazzani, F. and Macellari, V., 1990. The 
COSTEL system for human motion measurement and 
analysis. In: Image-Basedd Motion Measurement, ed. J.S. 
Walton, SPIE Volume 156, International Society for Optical 
Enginerring, Bellingham, Washington: 38-50. 
Crouch, D.G., Kehl, L. and Krist, J.R., 1990. OPTOTRAK - 
At last a system with resolution of ten microns. In: 
Image-Based Motion Measurement, ed. J.S. Walton, SPIE 
Volume 1356, International Society for Optical Engineering, 
Bellingham, Washington: 54. 
Ferrigno, G., 1990. A hierarchical approach to 3D movement 
analysis. In: Image-Based Motion Measurement, ed. 
J.S.Walton, SPIE Volume 1356, International Society for 
Optical Engineering, Bellingham, Washington: 2-7. 
Herron, R.E., Cuzzi, J.R., Goulet, D.V. and Hugg, J.E., 1974. 
Experimental determination of mechanical features of 
children and adults. Final Report, DOT-HS-231-2-397, U.S. 
Department of Transportation, Washington, D.C. 
Herron, R.E., Cuzzi, J.R. and Hugg, J.E., 1975. Mass 
distribution of the human body using biostereometrics. 
Report F33615-74-C-5121, AMRL-TR-75-18, 
Biostereometrics Laboratory, Houston, Texas. 
Macleod, A., Morris, J.R.W. and Lyster, M., 1990. Highly 
accurate video coordinate generation for automatic 3D trajec- 
tory calculation. In: Image-Based Motion Measurement, ed. 
J.S. Walton, SPIE Volume 1356, International Society for 
Optical Engineering, Bellingham, Washington: 12-18. 
Schaer, A.R., Sheffer, D.B., Jones, D., Meier, G. and 
Baumann, J.U., 1989. Combination of static and dynamic 
stereophotogrammetry for the kinetic analysis of human 
locomotion: preliminary results. SPIE Volume 1030, 
Biostereometrics'88, International Society for Optical 
Engineering, Bellingham, Washington: 378-382. 
Woltring, H.J. and Marsolais, E.B., 1980. Optoelectronic 
(Selspot) gait measurement in two- and three-dimensional 
space - a preliminary report. Bulletin of Prosthetics Research, 
BPR 10-34, 17(2): 46-52.