Controller for measuring distance from reference location and real size of object using a plurality of cameras
US11060864B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A controller obtains a distance index associated with first and second cameras and a camera distance between the first and second cameras. The controller receives a first and second image captured by the first and second cameras, respectively. The first and second images include a first and second object image of an object, respectively. The controller calculates a first object distance between the first camera and the object using a distance index associated with the first and second cameras, the camera distance, the first object image, and the second object image. The controller calculates an object real size of the object using the first object distance, the second object image, the camera distance, and the distance index. The controller determines whether policy criteria are satisfied by the first object distance and/or the object real size. When satisfied, the controller performs an action associated with the criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.