Invention Grant
- Patent Title: Method for the three dimensional measurement of moving objects during a known movement
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Application No.: US17087506Application Date: 2020-11-02
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Publication No.: US11243072B2Publication Date: 2022-02-08
- Inventor: Bastian Harendt
- Applicant: Cognex Corporation
- Applicant Address: US MA Natick
- Assignee: Cognex Corporation
- Current Assignee: Cognex Corporation
- Current Assignee Address: US MA Natick
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: DE102016111229.1 20160620,DE102017113473.5 20170620
- Main IPC: G01B11/30
- IPC: G01B11/30 ; G01B11/25 ; G06T7/593 ; G06T7/579 ; G06T7/285 ; G06T7/00 ; G06T7/40

Abstract:
A 3D measurement method including: projecting a pattern sequence onto a moving object; capturing a first image sequence with a first camera and a second image sequence synchronously to the first image sequence with a second camera; determining corresponding image points in the two sequences; computing a trajectory of a potential object point from imaging parameters and from known movement data for each pair of image points that is to be checked for correspondence. The potential object point is imaged by both image points in case they correspond. Imaging object positions derived therefrom at each of the capture points in time into image planes respectively of the two cameras. Corresponding image points positions are determined as trajectories in the two cameras and the image points are compared with each other along predetermined image point trajectories and examined for correspondence; lastly performing 3D measurement of the moved object by triangulation.
Public/Granted literature
- US20210063144A1 METHOD FOR THE THREE DIMENSIONAL MEASUREMENT OF MOVING OBJECTS DURING A KNOWN MOVEMENT Public/Granted day:2021-03-04
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