Dynamic determination of radiometric values using multiple band sensor array systems and methods

US11474030B2 · kind B2 · utility

Assignee

• FLIR Systems AB · SE

Inventors

• Henrik Viklund · Täby, SE
• Jonas Sandsten · Lomma, SE

Key dates

• Filing date: Jun 24, 2020
• Grant date: Oct 18, 2022
• Expiry date: Dec 16, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/10048
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Improved techniques for quantification of detected gases are provided. In one example, a method includes receiving infrared radiation from a scene at a sensor array comprising first and second sets of infrared sensors associated with first and second wavelength ranges of the infrared radiation, respectively. The method also includes capturing first and second images by the first and second sets of infrared sensors, respectively. The method also includes detecting a background object in the first image. The method also includes tracking the background object to identify the background object in the second image. The method also includes updating a radiometric scene map with first and second radiometric values associated with the first and second images and correlated to a location of the background object in the scene. The method also includes performing gas quantification using the radiometric scene map. Additional systems and methods are also provided.