公开(公告)号：EP1882168A1

公开(公告)日：2008-01-30

申请号：EP06741422.7

申请日：2006-04-25

Applicant: Photon Etc. Inc.

Inventor： BLAIS-OUELLETTE, Sébastien ,  WISHNOW, Ed

IPC: G01J3/32 ,  G01N21/31

CPC classification number: G01J3/32 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1213 ,  G01N21/31 ,  G01N2021/1793 ,  G01N2021/3137 ,  G01N2021/3177

Abstract: The present invention concerns a method and camera for obtaining a high- contrast image of a predetermined target present in an area under observation. The method involves obtaining an in-band image of the observation area including the target using a filter whose bands are aligned with selected characteristic wavelength bands of the target and an out-of-band image of the observation area excluding the target using the filter with its bands non-aligned with the selected characteristic wavelength bands of the target. Processing of the in-band and out- of-band images results in a high-contrast image highlighting the presence of the target in the observation area and thereby allowing its detection and monitoring.