Invention Grant
- Patent Title: Method and apparatus for indentifying structural elements of a projected structural pattern in camera images
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Application No.: US15448922Application Date: 2017-03-03
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Publication No.: US10068348B2Publication Date: 2018-09-04
- Inventor: Martin Wendler
- Applicant: PILZ GMBH & CO. KG
- Applicant Address: DE Ostfildern
- Assignee: PILZ GMBH & CO. KG
- Current Assignee: PILZ GMBH & CO. KG
- Current Assignee Address: DE Ostfildern
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: DE102014113389 20140917
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/593 ; G06T7/80 ; G06T7/521 ; H04N13/02

Abstract:
A method for identifying in camera images individual structural elements of a structural pattern projected by a projector onto a scene. First and second cameras are used to pick up the structural pattern. The cameras are positioned at a distance from one another, and the projector is positioned outside a straight line connecting the two cameras and at a distance from the cameras. With respect to a particular structural element to be identified in the camera image of the first camera, the structural element in the camera image of the second camera which can be associated one-to-one with the particular structural element is determined by way of calibration data. The calibration data for the individual structural elements comprises combinations of parameters which correlate the respective structural element with the location and orientation of both the first camera and the projector, and of the second camera and the projector.
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