Imagery intelligence: Difference between revisions
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'''Imagery intelligence''' (IMINT) is a means of obtaining information about distant topics by creating an image of it, most often using [[visible light]] [[photography]]. [[Photointerpreter]]s are people skilled in understanding the significance of images, such as high-altitude photographs of camouflaged military installations. They may use quantitative techniques of [[photogrammetry]], as well as a highly trained ability to recognize patterns. | '''Imagery intelligence''' (IMINT) is a means of obtaining information about distant topics by creating an image of it, most often using [[visible light]] [[photography]]. [[Photointerpreter]]s are people skilled in understanding the significance of images, such as high-altitude photographs of camouflaged military installations. They may use quantitative techniques of [[photogrammetry]], as well as a highly trained ability to recognize patterns. It is a subset of '''geospatial intelligence''', which matches the images to precise geographic positions. | ||
Imaging sensors, as a first approximation, break into "mapping" (or "wide-view") and "close-look" types. Accurate maps are indeed a product of imagery intelligence, as well as [[geodesy]]. Wide-view imaging, coupled with [[spectroscopic MASINT]], can give significant economic intelligence relating to the state of agriculture, disasters, and natural resources. Close-look techniques can identify specific patterns and individual objects; a Soviet [[S-75 Dvina]] installation, for example, had a characteristic six-pointed star pattern even if the missiles and radars could not be seen in detail. Of course, given a clue that a given missile radar system might be in a certain place, [[electronic intelligence]] can be tasked to confirm by detecting the radars of that system. | |||
Given a precisely located image, the full range of intelligence collection technologies can cooperate to understand its significance. [[Spectroscopic MASINT]], for example, does not create new images, but analyzes the infrared and visible spectra of the [[pixel]]s of the image. Multispectral analysis of those pixels can reveal, for example, if a field, grass-green to the human eye, is actually vegetation or camouflage paint. [[Signals intelligence]] can determine if communications or [[radar]] signals are coming from a seemingly innocent building. | |||
The image-forming devices are most often on [[reconnaissance]] [[aircraft]] or [[satellites]], but can come from handheld [[camera]]s on the ground, photographs taken through a [[submarine]]'s [[periscope]], or many other potential platforms. Imagery intelligence definitely includes photographs taken in the [[infrared]] or [[ultraviolet]] spectra. | |||
==Electro-optical imaging== | |||
Electro-optical imaging is a superset of [[photography]] in the visual and infrared spectra, using precise [[MASINT#cueing|cueing]] to direct the cameras, correlating them with precise time and geographic references. | |||
==Radar Imaging== | |||
See [[imaging radar]]. | |||
==Imagery interpretation== | |||
==Geospatial intellingence== | |||
[[Category:CZ Live]] | [[Category:CZ Live]] | ||
[[Category:Military]] | [[Category:Military]] | ||
Revision as of 00:27, 25 May 2008
Imagery intelligence (IMINT) is a means of obtaining information about distant topics by creating an image of it, most often using visible light photography. Photointerpreters are people skilled in understanding the significance of images, such as high-altitude photographs of camouflaged military installations. They may use quantitative techniques of photogrammetry, as well as a highly trained ability to recognize patterns. It is a subset of geospatial intelligence, which matches the images to precise geographic positions.
Imaging sensors, as a first approximation, break into "mapping" (or "wide-view") and "close-look" types. Accurate maps are indeed a product of imagery intelligence, as well as geodesy. Wide-view imaging, coupled with spectroscopic MASINT, can give significant economic intelligence relating to the state of agriculture, disasters, and natural resources. Close-look techniques can identify specific patterns and individual objects; a Soviet S-75 Dvina installation, for example, had a characteristic six-pointed star pattern even if the missiles and radars could not be seen in detail. Of course, given a clue that a given missile radar system might be in a certain place, electronic intelligence can be tasked to confirm by detecting the radars of that system.
Given a precisely located image, the full range of intelligence collection technologies can cooperate to understand its significance. Spectroscopic MASINT, for example, does not create new images, but analyzes the infrared and visible spectra of the pixels of the image. Multispectral analysis of those pixels can reveal, for example, if a field, grass-green to the human eye, is actually vegetation or camouflage paint. Signals intelligence can determine if communications or radar signals are coming from a seemingly innocent building.
The image-forming devices are most often on reconnaissance aircraft or satellites, but can come from handheld cameras on the ground, photographs taken through a submarine's periscope, or many other potential platforms. Imagery intelligence definitely includes photographs taken in the infrared or ultraviolet spectra.
Electro-optical imaging
Electro-optical imaging is a superset of photography in the visual and infrared spectra, using precise cueing to direct the cameras, correlating them with precise time and geographic references.
Radar Imaging
See imaging radar.