Autofocus accuracy and speed using thermal input information
US12143716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Feb 18, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device includes an image sensor, a lens assembly, a temperature sensor, and a processor. The lens assembly includes a lens whose distance from the image sensor is adjustable from a minimum stroke distance to a maximum stroke distance. The temperature sensor determines a temperature of the imaging device. The processor instantiates auto focus tables that are each correlated to a temperature, receives at temperature from the temperature sensor, selects an auto focus table associated with the temperature, and provides an auto focus for the object based upon the auto focus table. Each auto focus table provides a temperature compensated correlation of a first stroke distance associated with the object at the maximum distance from the imaging device, and a second stroke distance associated with the object at the minimum distance from the imaging device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.