Object symmetry axis detection method based on RGB-D camera
US10607106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Apr 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/68
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object symmetry axis detection method based on an RGB-D camera includes: obtaining three-dimensional point cloud data of an image of a target object in natural scenes, identifying data corresponding to a point cloud of an area where the target object is located from the three-dimensional point cloud data according to a color difference threshold segmentation method, establishing a spherical coordinate system centering about a centroid of the target point cloud data, selecting n2 candidate symmetry planes with a spherical coordinate system segmentation method, and calculating a symmetry axis of the target point cloud data according to the n2 candidate symmetry planes as the symmetry axis of the target object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.