Calibration of depth-sensing computer vision systems
US12418638B2 · kind B2 · utility
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Key dates
| Filing date | Jan 18, 2022 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Jan 19, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods utilize one or more 3D cameras (e.g., ToF cameras) in industrial safety applications. The 3D camera generates a depth map that may be used by external hardware and software to classify objects in a workcell and generate control signals for machinery. To facilitate sensor-specific calibration and coordination among sensors in a workcell, the sensors may store calibration data in a boot file that is loaded upon start-up. During initialization, the calibration data is loaded and, as the sensor operates, corrections are made to sensed data (e.g., pixel depth values) using the calibration data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.