Localization of a point source of a visualized gas leak

US7082370B2 · kind B2 · utility

Assignee

• Gasoptics Sweden AB · SE

Inventors

• Björn Ardö · Lund, SE
• Tomas Christiansson · Staffanstorp, SE
• Jonas Sandsten · Lomma, SE

Key dates

• Filing date: Jul 8, 2004
• Grant date: Jul 25, 2006
• Expiry date: Jul 8, 2024

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N21/3518
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Automated localization of a point source of a visualized gas leak, by searching in a corner response function crƒ(x*,y*,τ), calculated based on a number of frames of the gas leak, for maximum values in the (x*,y*) variables that are stable over the time variable τ. Considering a point (x*,y*) as the point source if the corner response function crƒ(x*,y*,τ) has a maximum value in the point (x*,y*) and the point (x*,y*) is temporally stable.