Hyperspectral Imaging
Hyperspectral imagery is in essence a picture that contains both spatially and spectrally continuous data. The term "hyper" means more than enough. If you have a "hyperspectral" image, you’ll have more than enough spectra, or spectral bands, than you absolutely need to resolve whatever component you are looking for within the image. There is no agreed upon number of spectra that constitutes hyperspectral versus multispectral imagery. Typically, multispectral imagery consists of a handful of spectra, perhaps a dozen or fewer. Hyperspectral imagery often times consists of hundreds of spectra. For example, ProVision’s current hyperspectral imaging system can capture up to 1024 spectra.~ Hyperspectral FAQs From ProVision Technologies
Introduction to Hyperspectral Imaging (From Microimages, Inc.)
Hyperspectral and Multispectral Cameras for Airborne Mapping (From the University of Idaho)
Hyperspectral Remote Sensing (From the Center for Earth Observation, North Carolina State University)
Hyperspectral Techniques (From the Canadian Centre for Remote Sensing)
Hyperspectral Toolkit for Environment for Visualizing Images (From Opto-Knowledge Systems, Inc.)
Hyperspectrum News Letter (Reference material for beginners)
Imaging Spectroscopy (Miscellaneous information from the US Geological Survey Spectroscopy Lab)
New approach for the radiometric calibration of spectral imaging systems (May 2004 “The International Electronic Journal of Optics” article)
LIDAR
Lidar (light detection and ranging or laser imaging detection and ranging) is a technology that determines distance to an object or surface using laser pulses. Like the similar radar techology, which uses radio waves instead of light, the range to an object is determined by measuring the time delay between transmission of a pulse and detection of the reflected signal.
3D Laser Scanning (2006 Presentation from the Florida Department of Transportation)
A LIDAR Primer (February 21, 2002, “Geospatial Solutions” magazine article)
About LIDAR (Overview from Aero-Metric Corp.)
Airborne Laser Altimetry Annotated Bibliography (From the National Center of Airborne Laser Mapping)
Airborne Laser Mapping with LIDAR for DUMMIES (2005 GIS Conference presentation)
Aerial Laser Scanning (From Institute of Cartography and Geoinformatics, University of Hannover)
Airborne LIDAR Topographic Surveying (Chapt. 11 from the US Army Corps of Engineers 2002 publication “Photogrammetric Mapping”)
An Introduction to Laser Scanning (Lecture from Ferris State University)
Examining Lidar in Remote Sensing (From Hyper-Nexus Solutions)
Fourth International Lidar Researchers Directory
Introduction to Discrete Return LIDAR (Prepared by
Jeffrey S. Evans and Andrew T. Hudak [USDA Forest Service] and
Alistair M.S. Smith [University of Idaho])
Introduction to Lidar Remote Sensing Methods (Lecture from the University of Idaho)
Imaging Laser Altimetry (Description from GeoLas Consulting)
Killer Data – LIDAR (October 12, 2005, “Directions Magazine” article)
Lidar Bibliography (From the “Optics Journal”)
Lowdown on LIDAR (March 2000 “Earth Observation Magazine” article)
Product Definitions and Guidelines for use in Specifying Lidar Deliverables (December 2002 “Photogrammetric Engineering and Remote Sensing Journal” article)
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How Hyperspectral Imaging and LIDAR Work
