Abstract: Disclosed is an observation system including a first optical path capable of receiving first optical radiation emitted by a scene and including a first sensor configured to generate a first digital image from the first optical radiation; a second optical path capable of receiving second optical radiation and including a second sensor configured to generate a second digital image from the second optical radiation; a display configured to display a third digital image from the first and second digital images; a third optical path coupled to the display; and a fourth optical path connecting the first and third optical paths, the first optical path including an optical element configured to transmit a part of the first optical radiation to the fourth optical path.

Abstract: An image processing method using a first image sensor covering the visible range and a second sensor covering the infra-red range. The method includes a) acquiring a first image I1 of said given zone of space by means of the first image sensor, b) acquiring a second image I2 of said given zone of space by means of the second image sensor, c) performing a decomposition of the first image I1 so as to obtain at least one luminance image I1L, d) obtaining an image If resulting from digital fusion of the luminance image I1L and of the second image I2, e) adding colour information to the fusion image If or during the fusion stage d).

Abstract: An image processing method using a first image sensor covering the visible range and a second sensor covering the infra-red range. The method includes a) acquiring a first image I1 of said given zone of space by means of the first image sensor, b) acquiring a second image I2 of said given zone of space by means of the second image sensor, c) performing a decomposition of the first image I1 so as to obtain at least one luminance image I1L, d) obtaining an image If resulting from digital fusion of the luminance image I1L and of the second image I2, e) adding colour information to the fusion image If or during the fusion stage d).

Abstract: An remote optical gas detection device comprising a detection housing (30) connected to an electronic power supply unit and to a human-machine interface, this detection housing containing an infrared lens (46) for forming an image on an uncooled microbolometer matrix detector (50), a CCD or CMOS-type camera (64) for observing the observed region under visible light, an assembly of electronic means (68) for controlling the detector and for acquiring and digitizing the infrared signals, as well as a processor (82) for processing these signals in order to detect a gas in the observed region and to determine the concentration thereof.

Abstract: An remote optical gas detection device comprising a detection housing (30) connected to an electronic power supply unit and to a human-machine interface, this detection housing containing an infrared lens (46) for forming an image on an uncooled microbolometer matrix detector (50), a CCD or CMOS-type camera (64) for observing the observed region under visible light, an assembly of electronic means (68) for controlling the detector and for acquiring and digitizing the infrared signals, as well as a processor (82) for processing these signals in order to detect a gas in the observed region and to determine the concentration thereof.