Introduction to Hyperspectral Remote sensing

Hyerspectral remote sensing provides a potential in remote discrimination between the ground objects in the hundreds of the bands. It provides unique features for the different species of the same class. By Hyperspectral Image (HSI) it is possible to identify the interested target in the image. HSI is captured in the 0.4-2.5 micro meter of electromagentic spectrum. Though HSI provides the fime spectral resolution in 10 nm, it creates the challenge in processing the HSI for the applications. One of the important preprocessing step is to reduce the number of the bands or to find the new low dimension space such that the information embedded in the HSI high dimensional space is summarized in the low dimension space. One of the challenging task is how to find the exact low dimensional space and the number of bands required to capture the information in HSI.