Systems and methods of calibrating a depth-IR image offset
US10628968B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Dec 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for determining an IR image offset and calibrating a depth sensing camera to account for the offset is provided. An RGB-D camera may image a checkerboard pattern at a known distance and location. The checkerboard pattern may be provided on a planar device, such as a board. A three-dimensional primitive shape may be placed at in a known location in relation to the checkerboard. Depth data may be obtained from the checkerboard with the primitive shape. As the system knows the actual depth of the primitive shape, a depth offset may be calculated from the returned depth information from the RGB-D camera. The system may determine the offset between the depth information and the color image. The offset may be taken into account to produce more accurate RGB-D images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.