摘要:
A system and method for performing multispectral color addition imaging. An optical image is obtained for a sample scene comprising one or more target materials. Spectroscopic data is obtained for one or more target materials. A first and second waveband of interest are obtained for one or more target materials. A ratio of the first and second wavebands of interest is obtained and compared to one or more ranges of threshold values. Based on this comparison, a result is displayed wherein this result comprises a pseudo color overlay on said optical image. The pseudo color image may comprise one or more pseudo colors assigned to one or more target materials so as to differentiate and identify the target materials present in the sample scene.
摘要:
A system and method for detecting explosives and explosive residues. A region of interest is surveyed using a video capture device to thereby identify a target area wherein the target area comprises an unknown material. The target area is interrogated using SWIR spectroscopic methods to form a SWIR hyperspectral image of the target area. The SWIR hyperspectral image is analyzed to thereby identify the unknown material.
摘要:
A sample is illuminated to thereby generate a plurality of first interacted photons selected. The first interacted photons are assessed using a visible imaging device to thereby determine an area of interest in the sample. The area of interest is illuminated to thereby generate a plurality of second interacted photons. The second interacted photons are assessed using a spectroscopic device to thereby generate a SWIR data set representative of said area of interest. A database is searched wherein said database comprises a plurality of known SWIR data sets associated with an explosive material. The data sets comprise at least one of: a plurality of SWIR spectra and a plurality of spatially accurate wavelength resolved SWIR images. An explosive material in the area of interest is thereby identified as a result of the search.
摘要:
A system and method for hyperspectral imaging to detect hazardous agents including explosive agents. A system comprising a tunable laser, a collection optics, and one or more hyperspectral imaging detectors configured for hyperspectral imaging of a target comprising an unknown material. A method comprising illuminating a target comprising an unknown material via a tunable laser to thereby generate a plurality of interacted photons. Detecting said interacted photons to generate at least one hyperspectral image representative of the target. One or more hyperspectral images may be obtained including SWIR, MWIR, and LWIR hyperspectral images. Algorithms and chemometric techniques may be applied to assess the hyperspectral images to identify the unknown material as comprising an explosive agent or a non-explosive agent. A video imaging device may also be configured to provide a video image of an area of interest, which may be assessed to identify a target for interrogation using hyperspectral imaging.
摘要:
A system and method for the detection and identification of explosives and explosive residues using a combination of SWIR, Raman, and LIBS spectroscopy techniques, including imaging. A region of interest may be surveyed to identify a target area, wherein the target area comprises at least one unknown material. This surveying may be accomplished using visible imagery or SWIR imagery. The target area may be interrogated using Raman spectroscopy and LIBS spectroscopy to identify the unknown material. SWIR techniques may also be used to interrogate the target area. Fusion algorithms may also be applied to visible images, SWIR data sets, Raman data sets, and/or LIBS data sets.
摘要:
A system and method for detection of explosive agents using hyperspectral imaging. A system comprising an illumination source, a spectral encoding device, and at least one imaging detector configured for at least one of SWIR and MWIR hyperspectral imaging of a target comprising an unknown material. A method comprising illuminating a target comprising an unknown material, assessing interacted photons using a spectral encoding device, and detecting interacted photons using at least one of SWIR hyperspectral imaging and MWIR hyperspectral imaging. Algorithms and chemometric techniques may be applied to assess the MWIR hyperspectral image to identify the unknown material as comprising an explosive agent or a non-explosive agent. A video imaging device may also be configured to provide a video image of an area of interest, which may be assessed to identify a target for interrogation using SWIR and MWIR hyperspectral imaging.
摘要:
A system and method for MWIR hyperspectral imaging to detect hazardous agents including explosive agents. A system comprising an illumination source, a tunable filter, and an imaging detector configured for MWIR hyperspectral imaging of a target comprising an unknown material. A method comprising illuminating a target comprising an unknown material, passing interacted photons through a tunable filter, and generating a MWIR hyperspectral image of the target. Algorithms and chemometric techniques may be applied to assess the MWIR hyperspectral image to identify the unknown material as comprising an explosive agent or a non-explosive agent. A video imaging device may also be configured to provide a video image of an area of interest, which may be assessed to identify a target for interrogation using MWIR hyperspectral imaging.
摘要:
A system and method for the detection and identification of explosives and explosive residues using a combination of SWIR, Raman, and LIBS spectroscopy techniques, including imaging. A region of interest may be surveyed to identify a target area, wherein the target area comprises at least one unknown material. This surveying may be accomplished using visible imagery or SWIR imagery. The target area may be interrogated using Raman spectroscopy and LIBS spectroscopy to identify the unknown material. SWIR techniques may also be used to interrogate the target area. Fusion algorithms may also be applied to visible images, SWIR data sets, Raman data sets, and/or LIBS data sets.
摘要:
A portable device for detecting explosives and other target materials using SWIR spectroscopic imaging, including hyperspectral imaging. The device may comprise a lens, a tunable filter, and a detector. The device may use solar radiation, or may comprise an illumination source such as a laser, to illuminate at target material and thereby produce interacted photons. The device may utilize multi-conjugate liquid crystal filter technology to filter interacted photons. The disclosure also provides for a method for using the portable device comprising illuminating a target material to produce interacted photons. The interacted photons are used to form a SWIR spectroscopic image, which may be a hyperspectral image. This image is analyzed to thereby identify the target material. This analysis may comprise comparing at least one spectrum or image representative of the target material to a reference spectrum or image. This comparison may be accomplished using a chemometric technique.
摘要:
A system and method for detecting explosives and explosive residues. A region of interest is surveyed using a video capture device to thereby identify a target area wherein the target area comprises an unknown material. The target area is interrogated using SWIR spectroscopic methods to form a SWIR hyperspectral image of the target area. The SWIR hyperspectral image is analyzed to thereby identify the unknown material.