EP 1042718 A1 20001011 - METHOD AND APPARATUS FOR THREE-DIMENSIONAL SURFACE CONTOURING USING A DIGITAL VIDEO PROJECTION SYSTEM
Title (en)
METHOD AND APPARATUS FOR THREE-DIMENSIONAL SURFACE CONTOURING USING A DIGITAL VIDEO PROJECTION SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUM FORMEN VON DREIDIMENSIONALEN OBERFLÄCHENKONTUREN MIT EINEM DIGITALEN VIDEOPROJEKTIONSSYSTEM
Title (fr)
PROCEDE ET APPAREIL POUR FORMER LES CONTOURS TRIDIMENSIONNELS D'UNE SURFACE AU MOYEN D'UN SYSTEME NUMERIQUE DE PROJECTION VIDEO
Publication
Application
Priority
- US 9827915 W 19981231
- US 7013897 P 19971231
Abstract (en)
[origin: WO9934301A1] A three-dimensional surface contouring method is based on the full-field fringe projection technique. A digital video projection system (18) is used to project digitally created fringe patterns onto the object (12). The fringe pattern distorted by the geometry of the object surface (14) is then captured by a high resolution CCD camera (20). To increase contouring resolution, purely software-based digital phase shifting technique is used, which eliminates the need for accurate positioning systems in the traditional phase shifting methods. The surface (14) is reconstructed by applying the phase wrapping and unwrapping algorithms.
IPC 1-7
IPC 8 full level
G01B 11/25 (2006.01); G06T 1/00 (2006.01)
CPC (source: EP)
G06T 1/0007 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9934301 A1 19990708; WO 9934301 A9 19990923; AU 2100199 A 19990719; CA 2316838 A1 19990708; EP 1042718 A1 20001011; EP 1042718 A4 20021016; JP 2002500369 A 20020108
DOCDB simple family (application)
US 9827915 W 19981231; AU 2100199 A 19981231; CA 2316838 A 19981231; EP 98965560 A 19981231; JP 2000526877 A 19981231