(19)

(11)

EP 1 971 961 A1

(12)

(43) Date of publication: 24.09.2008 Bulletin 2008/39 (21) Application number: 06718417.6 (22) Date of filing: 13.01.2006

(51) International Patent Classification (IPC):  G06K 9/62(2006.01) (86) International application number: PCT/US2006/001338 (87) International publication number: WO 2007/081344 (19.07.2007 Gazette 2007/29)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (71) Applicant: New Jersey Institute of Technology Newark, NJ 07102 (US)	(72) Inventors: ZOU, Dekun Kearny, NJ 07032-3314 (US) SHI, Yun-Qing Millburn, NJ 07041 (US) (74) Representative: Waddington, Richard  Appleyard Lees 15 Clare Road Halifax, Yorkshire HX1 2HY Halifax, Yorkshire HX1 2HY (GB)