Distance determination between an image sensor and a target area
US12062199B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Sep 7, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30268
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for determining a distance Dsensor between an image sensor and a target area of a driver of a vehicle, comprising arranging a light source at a known geometric relationship with respect to the image sensor, such that a structure in the vehicle at least occasionally casts a shadow in the target area, determining a distance Dlight source between the light source and the target area based on an image acquired be the image sensor of the target area including the shadow and a geometric relationship (e.g. distance) between the light source and the structure, and determining the distance Dsensor based on the distance Dlight source and the geometric relationship between the light source and the image sensor. With this approach, a reliable determination of the distance to the target area may be provided using only one single image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.