Determination of level and span for gas detection systems and methods
US11885740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Jun 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various techniques are provided for increasing contrast between gas features and other features in a scene. In one example, a method includes receiving a captured image frame comprising a plurality of pixels having a first range of associated pixel values. The method also includes receiving a selection of a subset of the pixels, wherein the subset comprises a gas feature and a scene feature. The method also includes determining a span associated with the pixels of the subset having a second range of associated pixel values smaller than the first range. The method also includes scaling the captured image frame to provide an adjusted image frame limited to the second range of pixel values associated with the span to increase contrast between the gas feature and the scene feature. The method also includes displaying the adjusted image frame. Additional methods and systems are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.