Systems and methods for screen brightness control and auto-lock based on eye detection
US11144120B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2021 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Feb 1, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2358/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system is provided. The computer system includes a memory and at least one processor coupled to the memory and configured to detect open eyes in an image received from a camera of the computer; recognize properties of the open eyes including orientation, designation as a left or right eye, and relative position of the eyes; group the detected open eyes into pairs of eyes based on the recognized properties; measure pupillary distance (e.g. represented in image pixels) of each of the pairs of eyes; identify the pair of eyes associated with the largest pupillary distance as the eyes closest to the camera; calculate a relative distance from the camera to the closest pair of eyes, the relative distance calculated as a ratio of the camera focal length to the largest pupillary distance; and reduce brightness of the computer screen if the relative distance is less than a threshold ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.