EP 1000318 A2 20000517 - SCANNING APPARATUS AND METHODS
Title (en)
SCANNING APPARATUS AND METHODS
Title (de)
ABTASTGERÄT UND ABTASTMETHODEN
Title (fr)
APPAREIL ET PROCEDES DE BALAYAGE
Publication
Application
Priority
- GB 9802307 W 19980731
- GB 9716240 A 19970731
Abstract (en)
[origin: GB2328280A] An arrangement for acquiring the 3D shape of an object O comprises a monocular (Figure 9) or a stereoscopic (Figure 8) digital camera optionally provided with an inertial sensor (11) which indicates the position and/or orientation of the camera(s) in relation to the object either to facilitate the derivation of 3D information from overlapping images in the former case or the combination of 3D data sets in the latter. The inertial sensor may be dispensed with (Figures 10, 13 and 14) or used only to determine relative rotation of a single camera, translation being determined by tracking a network of points a, b, c; a', b', c' in the image I. An image processor (Figures 3, 4 and 6) may utilise converging epipolar lines (EPa to EPd) which constrain the search for correlated regions of the images, or a projected fractal pattern (Figures 15 and 15A) whose correlated regions can be identified from their identical topology in both images.
IPC 1-7
IPC 8 full level
A61B 1/00 (2006.01); G01B 11/24 (2006.01); G01B 11/245 (2006.01); G01B 11/25 (2006.01); G06T 7/00 (2006.01); G06V 10/147 (2022.01)
CPC (source: EP US)
G01B 11/24 (2013.01 - EP US); G01B 11/245 (2013.01 - EP); G01B 11/2545 (2013.01 - EP); G06T 7/55 (2016.12 - EP); G06T 7/97 (2016.12 - EP); G06V 10/147 (2022.01 - EP US); G06V 2201/12 (2022.01 - EP)
Citation (search report)
See references of WO 9906950A2
Designated contracting state (EPC)
DE FR NL SE
DOCDB simple family (publication)
GB 2328280 A 19990217; GB 2328280 B 20020313; GB 9816756 D0 19980930; AU 8636298 A 19990222; CA 2299426 A1 19990211; EP 1000318 A2 20000517; GB 9716240 D0 19971008; JP 2001512241 A 20010821; WO 9906950 A2 19990211; WO 9906950 A3 19990422
DOCDB simple family (application)
GB 9816756 A 19980731; AU 8636298 A 19980731; CA 2299426 A 19980731; EP 98937633 A 19980731; GB 9716240 A 19970731; GB 9802307 W 19980731; JP 2000505603 A 19980731