Method and system for alignment of a pattern on a spatial coded slide image
US8836766B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | May 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for preparing a spatial coded slide image in which a pattern of the spatial coded slide image is aligned along epipolar lines at an output of a projector in a system for 3D measurement, comprising: obtaining distortion vectors for projector coordinates, each vector representing a distortion from predicted coordinates caused by the projector; retrieving an ideal pattern image which is an ideal image of the spatial coded pattern aligned on ideal epipolar lines; creating a real slide image by, for each real pixel coordinates of the real slide image, retrieving a current distortion vector; removing distortion from the real pixel coordinates using the current distortion vector to obtain ideal pixel coordinates in the ideal pattern image; extracting a pixel value at the ideal pixel coordinates in the ideal pattern image; copying the pixel value at the real pixel coordinates in the real slide image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.