AccessScience > Search

Search Results: Hyperspectral remote sensing (mapping)

Hyperspectral imagery offers new and unique opportunities for landscape mapping. It is an offshoot of multispectral imagery, which measures reflected...

= Encyclopedia Article;

= Research Update

View Large | Add to 'My Saved Images'

Figure 1.Hyperspectral images of the Lamar River in Yellowstone National Park, WY. (a) Principal component band 1 clearly highlights the river (black), gravel bars (medium gray), vegetation (light gray), and woody debris (white); (b) band 5 shows variations in stream turbulence, shown by shades of gray within the river; (c) band 40 is largely salt-and-pepper noise.

From update 'Hyperspectral remote sensing (mapping)'

View Large | Add to 'My Saved Images'

Figure 2.Hyperspectral mapping of wood. (a) Large logs and smaller woody debris on the banks of the Lamar River, Yellowstone National Park, WY, August 1999. (b) Hypothetical 1-m pixel covering the wood. (c) Hyperspectral wood map of the area shown in a. White indicates that the wood fills the entire pixel. Increasingly darker shades of gray indicate less wood per pixel. Black indicates no wood.

From update 'Hyperspectral remote sensing (mapping)'

View Large | Add to 'My Saved Images'

Figure 3.Field mapping versus hyperspectral and multispectral mapping of the Lamar River. (a) Map created by the ground survey team. (b) Hyperspectral map created with 1-m (3.3-ft) resolution and 128-band imagery. (c) Map created using simulated 6-band multispectral imagery. Black represents exposed islands in the channel, boundaries between units, or areas outside the channel. White represents eddy drop zones (areas where fine sediments are deposited), light grays are riffles, medium grays are glides, and dark grays are pools.

From update 'Hyperspectral remote sensing (mapping)'

Browse Topics:

Get AccessScience
Subscriptions
Request a Trial

Your IP address is 50.17.109.248