Overview Article: Spectral Imaging for Remote Sensing

Someone shared this on Scribd -- all about Spectral Imaging for Remote Sensing by Gary A. Shaw and Hsiao-hua K. Burke.

Chapter summary:
Spectral imaging for remote sensing of terrestrial features and objects arose asan alternative to high-spatial-resolution, large-aperture satellite imaging systems.Early applications of spectral imaging were oriented toward ground-cover classification, mineral exploration, and agricultural assessment, employing a small number of carefully chosen spectral bands spread across the visible and infrared regions of the electromagnetic spectrum. Improved versions of these early multispectral imaging sensors continue in use today. A new class of sensor,the hyperspectral imager, has also emerged, employing hundreds of contiguous bands to detect and identify a variety of natural and man-made materials. This overview article introduces the fundamental elements of spectral imaging and discusses the historical evolution of both the sensors and the target detection and classification applications.

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