1. R. Lu, Study on the Visual Alignment Technique for On-line Measurement, The Research Report of Postdoctoral Research, Tianjin University, China, 2000.
2. D. Vernon, Machine Vision — Automated Visual Inspection and Robot Vision, Cambridge University Press, Cambridge, 1991.
3. F.T. Farago, M.A. Curtis, Handbook of Dimensional Measurement, 3rd Edition, Industrial Press Inc., 1994.
4. Straightness measurement using laser beam straight datum;Junichi;SPIE Int. Soc. Opt. Eng.,1995
5. Transmission-type position sensor for the straightness measurement of a large structure;Sasaki;J. Micromech. Microeng.,1999