Method and device for inpainting of colourised three-dimensional point clouds
US11568520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2018 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Mar 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30181
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for colourising a three-dimensional point cloud including surveying a point cloud with a surveying instrument. Each point of the point cloud may be characterised by coordinates within an instrument coordinate system having an instrument center. The method may include capturing a first image of the setting with a first camera. Each pixel value of the first image is assigned coordinates within a first camera coordinate system having a first projection center as origin and a first parallax shift relative to the instrument center. The method may include transforming the point cloud from the instrument coordinate system into the first camera coordinate system, resulting in a first transformed point cloud, detecting one or more uncovered points within the first transformed point cloud which are openly visible from the first projection center, and for each uncovered point, assigning a pixel value having corresponding coordinates in the first camera coordinate system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.