Mathematics – Logic
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufm.p41b0409p&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #P41B-0409
Mathematics
Logic
5420 Impact Phenomena (Includes Cratering), 5464 Remote Sensing, 5494 Instruments And Techniques, 6225 Mars, 6297 Instruments And Techniques
Scientific paper
One of the challenges of planetary science is the development of tools adequate to provide automated crater statistics, for use in chronology, geomorphology and a variety of other investigations. We will present the current results of an ongoing effort to develop new tools for culling THEMIS imagery for crater statistics. Our eventual goal is to generate crater density and age maps of Mars. We are also developing tools to probe the morphologies and near-surface compositions of type-class craters. One crater type of particular significance is the rampart crater, which is unique to Mars. These are widely believed to be the result of impacts into volatile-rich surface materials. We will present the results of our examination of the spectral and morphological properties of several rampart craters in THEMIS IR images as a demonstration of image processing and automated feature extraction techniques. Using techniques developed at Los Alamos National Laboratory, we are able to obtain an automated count of craters in an image, their centroids and radii, extract spectra and compare them to spectral libraries of known reference minerals.
Asphaug Erik
Brumby Steven P.
Plesko Catherine S.
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