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Classification of the lcvf aviris test site with a kohonen artificial neural network
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Singer, Robert B. Farrand, William H. Merenyi, Erzsebet |
| Copyright Year | 1993 |
| Description | We present a classification of an AVIRIS spectral image of the Lunar Crater Volcanic Field (LCVF). Geologic mapping from such data is made possible by distinctive mineral signatures: absorption features and the shape of the spectral continuum. The subtle spectral shape differences between some of the geological units in this scene along with the high dimensionality of the spectral presents a challenging pattern recognition task. We found an artificial neural network powerful in separating 13 geological units based on the full spectral resolution. The LCVF, in northern Nye County, Nevada, was the primary focus of the NASA-sponsored Geologic Remote Sensing Field Experiment in the summer of 1989. It consists of over 100 square miles of Quaternary basaltic pyroclastic and flow deposits. These deposits lie atop ignimbrites and silicic lava flows of Tertiary age and in turn are overlain by Quaternary alluvial and playa deposits. This AVIRIS image was collected on September 29, 1989 at 11:44 at 11:44 PDT. The 256-by-256 pixel subsection in this study contains oxidized basaltic cinder deposits, the southern half of the Lunar Lake playa, and outcrops of the Rhyollite of Big Sand Spring Valley. Vegetation in LCVF is sparse, but locally abundant within washes and near springs. |
| File Size | 329612 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950017454 |
| Archival Resource Key | ark:/13960/t1qg3mv44 |
| Language | English |
| Publisher Date | 1993-10-25 |
| Access Restriction | Open |
| Subject Keyword | Cybernetics Computer Aided Mapping Classifications Knowledge Bases Artificial Intelligence Lava Neural Nets Image Processing Geology Spectral Signatures Imaging Techniques Igneous Rocks Pattern Recognition Minerals Infrared Spectra Remote Sensing Sands Airborne Equipment Geological Surveys Spectral Resolution Infrared Spectrometers Lunar Craters Basalt Volcanoes Alluvium Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
