(19)

(11)

EP 1 097 432 A1

(12)

(43) Date of publication: 09.05.2001 Bulletin 2001/19 (21) Application number: 99935733.8 (22) Date of filing: 20.07.1999

(51) International Patent Classification (IPC)7: G06T 7/20 (86) International application number: PCT/US9916/395 (87) International publication number: WO 0004/508 (27.01.2000 Gazette 2000/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 20.07.1998 US 93492 P (71) Applicant: Geometrix, Inc. San Jose, CA 95126 (US)	(72) Inventors: ZWERN, Arthur San Jose, CA 95125 (US) FEJES, Sandor San Jose, CA 95124 (US) CHEN, Jinlong Santa Clara, CA 95054 (US) WAUPOTITSCH, Roman Los Gatos, CA 95032 (US) (74) Representative: Perkins, Sarah  Stevens, Hewlett & PerkinsHalton House20/23 Holborn London EC1N 2JD London EC1N 2JD (GB)