Automatic in-situ registration and calibration of robotic arm/sensor/workspace system
US10052766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2015 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/09
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Various technologies described herein pertain to automatic in-situ calibration and registration of a depth sensor and a robotic arm, where the depth sensor and the robotic arm operate in a workspace. The robotic arm can include an end effector. A non-parametric technique for registration between the depth sensor and the robotic arm can be implemented. The registration technique can utilize a sparse sampling of the workspace (e.g., collected during calibration or recalibration). A point cloud can be formed over calibration points and interpolation can be performed within the point cloud to map coordinates in a sensor coordinate frame to coordinates in an arm coordinate frame. Such technique can automatically incorporate intrinsic sensor parameters into transformations between the depth sensor and the robotic arm. Accordingly, an explicit model of intrinsics or biases of the depth sensor need not be utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.