Title
Advances in hyperspectral processing for province- and continental- wide mineral mapping
Abstract
Comprehensive mapping of the mineral composition within North Queensland, Australia was recently undertaken using 25,000 km2 of airborne hyperspectral imagery. High spatial resolution, web-accessible, seamless, accurate maps of mineral abundances and physicochemistries, were delivered as part of a Queensland Geological Survey initiative. This required the development of pre-processing and mineral information extraction strategies that could be applied across a large number of individual flight lines within a diverse range of environments. This study demonstrated the successful use of spectral indices to target diagnostic reflectance absorption features associated with mineral abundances, composition and variations associated with crystalline or water bonding states. A multi-level series of masks, in a logical sequence, were applied to reduce possible ambiguities within image products. A new technique was also developed to compensate for variable vegetation cover, enabling the extraction of predominantly geological information (e.g. soil, outcrop, colluvium).
Year
DOI
Venue
2009
10.1109/IGARSS.2009.5417473
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Keywords
Field
DocType
geophysical signal processing,minerals,mining,remote sensing,spectral analysis,Australia,Queensland Geological Survey initiative,airborne hyperspectral imagery,continent wide mineral mapping,crystalline states,diagnostic reflectance absorption features,geological information extraction,hyperspectral processing,mineral abundance maps,mineral composition,mineral information extraction,north Queensland,province wide mineral mapping,spectral indices,variable vegetation cover,water bonding states,Hyperspectral,mineral mapping,spectral indices,vegetation compensation
Computer science,Colluvium,Remote sensing,Hyperspectral imaging,Information extraction,Reflectivity,Geological survey,Image resolution,Vegetation cover,Outcrop
Conference
Volume
ISSN
ISBN
4
2153-6996
978-1-4244-3395-7
Citations 
PageRank 
References 
2
0.37
0
Authors
6
Name
Order
Citations
PageRank
Robert Hewson1183.82
Thomas Cudahy221.05
Michael Caccetta320.71
Andrew Rodger4710.50
Mal Jones520.37
Cindy Ong6316.49