IP Library Granted Patent US 8,502,991
Granted Patent B2
US 8,502,991 · App. 12/832,528 · Granted Aug 6, 2013

Method for the determination of the 3D coordinates of an object

Inventors: Herbert Daxauer (Alchsee, AT); Thomas Mayer (Kolbermoor, DE); Christian Thamm (Rosenheim, DE)
Assignee: Steinbichler Optotechnik GmbH
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Quick Facts
Patent No.
US 8,502,991
App. No.
12/832,528
Granted
Aug 6, 2013
Kind
B2
Abstract

A method serves for the determination of the 3D coordinates of an object. An improved method of this kind is characterized in that the object is surrounded by a plurality of reference probes having coded reference marks; and in that a plurality of shots are taken of the object such that a part of the object and a part of a reference probe is in each case included thereon.

Claims (23)

1. A method for the determination of the 3D coordinates of an object, comprising the steps of:

surrounding the object by a plurality of reference probes having coded reference marks, the reference probes being unconnected the object; and

taking a plurality of shots of the object such that a part of the object and a part of a reference probe are in each case included thereon; and

determining the 3D coordinates of the object based on reference marks included in at least one of the plurality of shots.

2. A method in accordance with claim 1 , wherein some or all of the reference probes are longer than the measurement field of the 3D sensor.

3. A method in accordance with claim 1 , wherein some or all of the reference probes are of bar shape.

4. A method in accordance with claim 1 , wherein shots which include at least an end of a reference probe, include at least an end of a further reference probe.

5. A method in accordance with claim 1 , wherein the reference marks are automatically decoded.

6. A method in accordance with claim 1 , wherein some or all of the shots are linked to one another by a 3D matching process.

7. A method in accordance with claim 1 , wherein coded reference marks are also provided on the rear sides of some or all of the reference probes.

8. A method in accordance with claim 1 , wherein the positions of the reference marks are detected and saved in a first measurement run.

9. A method in accordance with claim 1 , wherein further measurement runs are carried out on the basis of stored positions of the reference marks.

10. A method in accordance with claim 2 , wherein some or all of the reference probes are of bar shape.

11. A method in accordance with claim 10 , wherein shots which include at least an end of a reference probe, include at least an end of a further reference probe.

12. A method in accordance with claim 2 , wherein shots which include at least an end of a reference probe, include at least an end of a further reference probe.

13. A method in accordance with claim 3 , wherein shots which include at least an end of a reference probe, include at least an end of a further reference probe.

14. A method in accordance with claim 13 , wherein the reference marks are automatically decoded.

15. A method in accordance with claim 12 , wherein the reference marks are automatically decoded.

16. A method in accordance with claim 11 , wherein the reference marks are automatically decoded.

17. A method in accordance with claim 10 , wherein the reference marks are automatically decoded.

18. A method in accordance with claim 4 , wherein the reference marks are automatically decoded.

19. A method in accordance with claim 3 , wherein the reference marks are automatically decoded.

20. A method in accordance with claim 2 , wherein the reference marks are automatically decoded.

Assignments (2)
CHANGE OF NAME Recorded Feb 21, 2018
From: STEINBICHLER OPTOTECHNIK GMBH
To: CARL ZEISS OPTOTECHNIK GMBH
Reel/Frame 045272/0954 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2010
From: DAXAUER, HERBERT; MAYER, THOMAS; THAMM, CHRISTIAN
To: STEINBICHLER OPTOTECHNIK GMBH
Reel/Frame 025029/0568 →
Priority Claims (1)
DE 10 2009 032 262 · Jul 8, 2009 · national
Continuity (1)
Related Publication 20110007326A1 · Jan 13, 2011