System for measuring the distance of an obstacle using optical flow
US11041876B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Oct 5, 2017 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Apr 17, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0858
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for measuring the distance of an obstacle, in which an optical flow is measured radially while rotating along a circle in a plane intersecting the obstacle; and the distance of the obstacle is determined according to the amplitude of the optical flow, the radius of the circle, and the speed of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.