Current PE&RS Cover
PE&RS June 1998
VOLUME 64, NUMBER 6PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
JOURNAL OF THE AMERICAN SOCIETY FOR PHOTOGRAMMETRY AND REMOTE SENSING
Cover Image
These images and spectra of the Mt. Fitton area, South Australia, were acquired by the HYMAPTM scanner, a commercially available hyperspectral airborne system. The local geology in this area is comprised of a series of folded unconformable Adelaidian (Proterozoic) sediments syn- and post-intruded by Proterozoic diapirs, and Palaeozoic granitic and granodioritic intrusives. Sedimentary facies show a full range of argillaceous, arenaceous, and carbonaceous compositions and textures. Palaeozoic tectonism is characterised by E/ENE trending asymmetric folds with steeply dipping axial traces. Synform features are strongly developed within the area. Hyperspectral systems, also known as “imaging spectrometers,” uniquely provide combined high spatial- and spectral-information that can be used to map the composition and abundance of surface materials, thus aiding in the geologic interpretation.
The HYMAP data shown here cover an approximately 2.6 x 4 km area at 5-meter spatial resolution in 128 narrow (12 – 16 nm-wide) spectral bands. The left image is a Color Infrared Composite (CIR) Image of HYMAP bands 30, 17, and 10 (0.863, 0.665, 0.557 mm)(RGB). The center image shows bands 1, 2, and 3 (RGB) of a Minimum Noise Fraction Transform (MNF) of selected VNIR bands. The left plot shows laboratory reflectance spectra from the U. S. Geological Survey spectral library for selected minerals. The right plot shows average apparent reflectance spectra for selected minerals extracted from the HYMAP hyperspectral data after a simple flat field atmospheric correction, and tentatively identified using visual comparison to the U.S.G.S. spectral library. The right image shows color overlays of these selected mineral occurrences on a grayscale image of HYMAP Band 17 (0.665 mm). Colors in the right image correspond to those used in the spectral plots. Preliminary analysis of these HYMAP data without a priori information and using only the 2.0–2.5 mm range indicate the presence of over 15 distinct minerals.
HYMAP data courtesy of Integrated Spectronics Pty Ltd, acquired April 1998, and processed by Analytical Imaging and Geophysics, Boulder, Colorado using ENVI®, the “Environment for Visualizing Images.” For additional information about ENVI®, contact Research Systems Inc., 303-786-9900; envi@rsinc.com; or www.rsinc.com. ENVI® is a registered trademark of Better Solutions Consulting LLC, Lafayette, Colorado, USA. Information about HYMAP is available from Integrated Spectronics at www.intspec.com. Analytical Imaging and Geophysics can be contacted at www.aigllc.com.
Peer-Reviewed Articles (Click the linked titles to see the full abstract)
589 Emerging Legal and Ethical Issues in Advanced Remote Sensing
Technology
E. Terrence Slonecker, Denice M. Shaw, and Thomas M. Lillesand
Fundamental changes are taking place in the world of remote sensing that will require all practitioners in the field to revisit the code of ethics of the profession.
597 Bias and Precision of Different Sampling Methods for GPS Positions
Michel Arnaud and Albert Flori
With or without filtering based on criteria such as the numbers of satellites or PDOP, mean longitude and latitude values are unbiased.
601 Mosaicking Airborne Scanner Data with the Multiquadric Rectification
Technique
Kenneth C. McGwire
The multiquadric technique provided excellent edge matching and less than half the absolute geometric error of polynomial-based techniques.
607 Satellite Monitoring of Lake Ice Breakup on the Laurentian Shield
(1980-1994)
Randolph H. Wynne, Thomas M. Lillesand, Murray K. Clayton, and John J.
Magnuson
The predominant spatial trends of mean ice breakup dates can be attributed to latitude and snowfall.
619 Accuracy Assessment of a Land-Cover Map of the Kuparuk River Basin,
Alaska: Considerations for Remote Regions
S.V. Muller, D.A. Walker, F.E. Nelson, N.A. Auerback, J.G. Bockheim. S.
Guyer, and D. Sherba
A helicopter and Y-Code GPS receiver-assisted accuracy assessment using an error matrix and fuzzy sets methods to analyze classification error in a simplified land-cover map of a remote watershed is described.
629 Map-Guided Approach for the Automatic Detection on Landsat TM
Images of Forest Stands Damaged by the Spruce Budworm
Stéphane Chalifoux, François Cavayas, and James T. Gray
This method has a definite advantage over all standard methods, by permitting the characterization as damaged or not of an entire stand, instead of the individual image pixel.
Announcements
600 Certification
617 Call for Papers: 17th Biennial Workshop on Color Photography & Videography
in Resource Assessment
618 GIS/LIS ‘98
636 IGIF Newsletter
641 College/University Classifieds
646 ISPRS Commission III Symposium
Columns & Updates
561 Headquarters
569 Softcopy
574 Society
578 GPS
579 Grids & Datums
Departments
565 Letters to the Editor
581 Book Review
583 ASPRS Board of Directors
584 Sustaining Members
586 New Members
588 Index to Advertisers
595 Forthcoming Articles
596 Instructions to Authors
638 Calendar
640 Classifieds
642 Professional Directory
647 Bookstore
651 Membership Application
| Top | Home |
|
 |
advertisement
 |
advertisement  |
advertisement  |
advertisement  |
| 5410 Grosvenor Lane, Suite 210, Bethesda, Maryland 20814-2160 Tel (301) 493-0290 -- |
Copyright© 2009
ASPRS Last Update: |