Apparatus and method for validating leak survey results
US9726543B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Feb 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10048
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for validating a leak survey result obtained from an Optical Gas Imaging (OGI) device is proposed. The validation system is coupled to a gas detection infrared thermography camera that captures the infrared image of a scene which may or may not include a gas plume. The validation system performs operations to validate the leak survey result, which includes acquiring a background temperature of each pixel of the infrared image of the scene, acquiring a temperature of the gas plume or ambient air from a temperature sensor that is coupled to the validation system, calculating a temperature difference of said each pixel between the background temperature of said each pixel and the temperature of the gas plume or ambient air, comparing the temperature difference of said each pixel to a predetermined threshold value, and determining whether the leak survey result of the infrared thermography camera is valid based on the temperature difference of said each pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.