Evaluation of rock faces with hyperspectral imaging

John H. Combs, Michael W. Kudenov, Julia Craven, John M Kemeny

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Hyperspectral imaging is a technology that uses non-visible portions of the electromagnetic spectrum to identify and categorize different objects. While this technology has been used for decades with satellite imagery it is only recently that ground based applications have been explored for purposes such as mineral identification. [1] Each mineral has areas on the spectrum where they absorb the most energy, and by filtering the light before it strikes a sensor it is possible to determine what mineral is being observed. Clay minerals have several absorption peaks in the short range infrared spectrum which can be used for identification. [2] When creating geologic models, the presence of clay minerals can greatly affect the stability of the slope due to reduced friction angle and strength properties. A compact infrared hyperspectral SWIR/MWIR imaging polarimeter (IHIP) was employed in recording the infrared spectrum from 1.4um to 6um and was used to capture several images from a test site on Mount Lemmon, AZ. Mathworks MATLAB was used to view and process the data, including the use of a linear un-mixing algorithm to computer relative abundances of end member spectral data [3].

Original languageEnglish (US)
Title of host publication45th US Rock Mechanics / Geomechanics Symposium
StatePublished - 2011
Event45th US Rock Mechanics / Geomechanics Symposium - San Francisco, CA, United States
Duration: Jun 26 2011Jun 29 2011

Other

Other45th US Rock Mechanics / Geomechanics Symposium
CountryUnited States
CitySan Francisco, CA
Period6/26/116/29/11

Fingerprint

Minerals
Rocks
minerals
rocks
Clay minerals
Infrared radiation
evaluation
Geologic models
rock
clay mineral
Satellite imagery
Polarimeters
mineral
clays
infrared spectra
MATLAB
Identification (control systems)
satellite imagery
electromagnetic spectra
Friction

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

Combs, J. H., Kudenov, M. W., Craven, J., & Kemeny, J. M. (2011). Evaluation of rock faces with hyperspectral imaging. In 45th US Rock Mechanics / Geomechanics Symposium

Evaluation of rock faces with hyperspectral imaging. / Combs, John H.; Kudenov, Michael W.; Craven, Julia; Kemeny, John M.

45th US Rock Mechanics / Geomechanics Symposium. 2011.

Research output: Chapter in Book/Report/Conference proceedingChapter

Combs, JH, Kudenov, MW, Craven, J & Kemeny, JM 2011, Evaluation of rock faces with hyperspectral imaging. in 45th US Rock Mechanics / Geomechanics Symposium. 45th US Rock Mechanics / Geomechanics Symposium, San Francisco, CA, United States, 6/26/11.
Combs JH, Kudenov MW, Craven J, Kemeny JM. Evaluation of rock faces with hyperspectral imaging. In 45th US Rock Mechanics / Geomechanics Symposium. 2011
Combs, John H. ; Kudenov, Michael W. ; Craven, Julia ; Kemeny, John M. / Evaluation of rock faces with hyperspectral imaging. 45th US Rock Mechanics / Geomechanics Symposium. 2011.
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