Hyperspectral Imaging

Analyse Spectra

This module allows for a user to select a spectrum from a dataset, and compare it with library spectra. Different features can be highlighted, and a hull can be removed from the spectrum. This tool is essentially a viewer, allowing for the user to strategize interpretation strategies.

Options are:

  • Display band – choice of which data wavelength to display.

  • Feature – highlight a standard spectral feature.

  • Rotate view – Allows a dataset to be rotated for display purposes.

  • Remove hull – allows for the hull removed representation of a spectrum.

  • Load ENVI spectral library. This can be any spectral library in ENVI spectral library format. The user then chooses the appropriate reference spectrum to compare with.

_images/rsenseanalyse.png

Process Features

This module takes as input hyperspectral data, and allows for a standard set of feature definitions to be calculated (Haest et al. 2012). Currently this includes mica, spectate, kaolin, chlorine, epidote and ferrous iron. Once a product is selected, the details of the various datasets which make up the calculation are shown on a table, including feature name, filter, threshold and description. The user is able to alter details such as the respective dataset threshold.

Options are:

  • Product - includes mica, spectate, kaolin, chlorine, epidote and ferrous iron.

  • Details - including feature name, filter, threshold and description. The user is able to alter the respective dataset threshold.

_images/rsensefproc.png