1.

Conference Proceedings

Conference Proceedings
Du, Y. ; Ives, R. ; Etter, D. ; Welch, T. ; Chang, C.-I.
Pub. info.: Biometric technology for human identification.  pp.237-247,  2004.  Bellingham, Washington.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5404
2.

Conference Proceedings

Conference Proceedings
Du, Y. ; Ives, R. ; Etter, D. M. ; Welch, T.
Pub. info.: Electro-optical and infrared systems : technology and applications : 25-27 October 2004, London, United Kingdom.  pp.104-116,  2004.  Bellingham, Wash..  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5612
3.

Conference Proceedings

Conference Proceedings
Du, Y. ; Ives, R. ; Bonney, B. ; Etter, D. M.
Pub. info.: Biometric technology for human identification II : 28-29 March, 2005, Orlando, Florida, USA.  pp.31-40,  2005.  Bellingham, Wash..  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5779