公开(公告)号：WO2023275583A1

公开(公告)日：2023-01-05

申请号：PCT/IB2021/000866

申请日：2021-12-10

Applicant: KAYRROS

Inventor： OUERGHI, Elyes ,  EHRET, Thibaud ,  DE FRANCHIS, Carlo ,  FACCIOLO, Gabriele ,  LAUVAUX, Thomas ,  MOREL, Jean-Michel ,  GIRON, Clément

IPC: G01N21/35 ,  G01N21/3504 ,  G01J3/42 ,  G01M3/38 ,  G01N33/00 ,  G01N2021/3531 ,  G01N33/0036

Abstract: A method of detecting a plume of a given gas composition from a hyperspectral image comprises obtaining a short-wave infrared (SWIR) image depicting an area of interest on a given date from an overhead image acquisition device, determining, for a plurality of wavelengths for which a given gas exhibits an absorption maximum, whether at least one pixel of the SWIR image is indicative of absorption of infrared light within the given gas, applying an anomaly detection algorithm to the SWIR image to detect an anomaly therein that is attributable to a presence of the given gas within the area of interest, and identifying pixels as indicative of an emission of the given gas for those pixels of the SWIR image that are determined to be indicative of absorption of the given gas and determined to be indicative of the anomaly attributable to the presence of the given gas.