EP 2195609 A2 20100616 - METHOD FOR THREE-DIMENSIONAL DIGITISATION
Title (en)
METHOD FOR THREE-DIMENSIONAL DIGITISATION
Title (de)
VERFAHREN UND VORRICHTUNG FÜR DREIDIMENSIONALE DIGITALISIERUNG
Title (fr)
PROCÉDÉ DE NUMÉRISATION TRIDIMENSIONNELLE
Publication
Application
Priority
- FR 2008001340 W 20080926
- FR 0706822 A 20070928
Abstract (en)
[origin: FR2921719A1] The method involves projecting dusty seeds of a target (12) of a projector (8) on a three-dimensional surface (3), and acquiring and memorizing a two-dimensional image from the dusty seeds projected on the surface and deformed by the surface. The deformed two-dimensional image is compared with a non-deformed two- dimensional image for a selection of preset color and/or luminous intensity points of the dusty seeds. A depth coordinate measured parallelly at a main optical axis (13) of the projector is calculated for each point from the projection of the point on the surface. The dusty seeds act as a pocking type pattern or speckle type pattern. The target can be a transparent or translucent plate made of plastic or glass material.
IPC 8 full level
G01B 11/25 (2006.01); G06T 19/00 (2011.01); G01B 11/22 (2006.01); G02B 27/22 (2006.01); G06T 7/00 (2006.01); G06T 17/00 (2006.01)
CPC (source: EP US)
G01B 11/25 (2013.01 - EP US)
Citation (search report)
See references of WO 2009074751A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2921719 A1 20090403; FR 2921719 B1 20100312; EP 2195609 A2 20100616; JP 2010541058 A 20101224; US 2011170767 A1 20110714; US 8483477 B2 20130709; WO 2009074751 A2 20090618; WO 2009074751 A3 20090806
DOCDB simple family (application)
FR 0706822 A 20070928; EP 08860393 A 20080926; FR 2008001340 W 20080926; JP 2010526336 A 20080926; US 68055708 A 20080926