Foreign matter detection device, foreign matter detection method, and program
US11776143B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Oct 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A measurement information acquisition unit acquires depth information indicating a depth in a detection range measured by a depth measurement device that measures the depth. An image acquisition unit acquires an image of the detection range captured by an imaging device that captures the image. A depth extraction unit extracts partial depth information in which a portion not being subject to a determination of being foreign matter or not is removed from the depth information, based on the acquired image. A foreign matter determination unit determines presence or absence of foreign matter in the detection range based on the partial depth information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.