1.

Conference Proceedings
Conference Proceedings
1. Rotation invariant seal imprint recognition with ring-projecting technique
Yang,X. ; Wang,Z. ; Liu,W. ; Mu,G.
Pub. info.: Object detection, classification, and tracking technologies : 22-24 October 2001, Wuhan, China.  pp.51-56,  2001.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4554
2.

Conference Proceedings
Conference Proceedings
2. Color-coded grating 3D profile measurement and its application
Liu,W. ; Wang,Z. ; Mu,G. ; Fang,Z.
Pub. info.: Optical measurement and nondestructive testing : Techniques and applications, 8-10 November 2000, Beijing, China.  pp.98-101,  2000.  Bellingham, Wash., USA.  SPIE-The International Society for Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 4221