Global Patent Index - EP 1042718 A1

EP 1042718 A1 2000-10-11 - 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

EP 1042718 A1 (EN)

Application

EP 98965560 A

Priority

  • US 9827915 W
  • US 7013897 P

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 (main, further and additional classification)

G06F 15/00

IPC 8 full level (invention and additional information)

G01B 11/25 (2006.01); G06T 1/00 (2006.01)

CPC (invention and additional information)

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

EPO simple patent family

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

INPADOC legal status


2006-04-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050928

2005-01-19 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041208

2002-10-16 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20020903

2002-10-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-10-16 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7G 06F 15/00 A, 7G 01B 11/25 B

2000-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000724

2000-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE