Archive for the ‘FAQ’ Category
Friday, December 14th, 2007
Lillesand et al. (2004) define remote sensing as “the science and art of
obtaining information about an object … through the analysis of data acquired
by a device that is not in contact with the object.” This includes sensors that
measure gravitational, magnetic, or electric forces; sonic devices; and optical
and microwave imagers that ...
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Thursday, December 13th, 2007
• Active EMR Systems:
Radar (RAdio Detection And Ranging): Synthetic Aperture Radar(SAR) and InterFerometric SAR (IFSAR)
LIDAR (LIght Detection And Ranging)
• Passive EMR Systems:
o Non-imaging radiometers (a.k.a., spectrometers)
o Optical EMR imagers (some are imaging radiometers):
Single-band imagers, e.g., panchromatic (PAN)
Shortwave multispectral (MS) imagers: e.g., blue-light (BL), greenlight(GL), red-light (RL), ...
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Monday, December 10th, 2007
Even the best looking natural color or color infrared images do not show the
full extent of the information that can be extracted from a MS image data set.
Making a “good-looking” image does not require highly-analytical operations.
But, producing accurate and consistent information always requires highly analytical
and precise, knowledge-based operations.
Many analysts rely ...
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