PE&RS September 1996

Cover Image

This 1:40,000 scale image was captured using Kodak Aerochrome Infrared Film Type SO-134 for the 1994 National Aerial Photography Program (NAPP), in South Carolina. The film was repro-duced by HAS Images, Inc. who archives the statewide photo coverage and makes photo products for distribution through the South Carolina Department of Natural Resources. The image was taken in Marion County, SC. The elliptically shaped depressions are Carolina bays, unique isolated wetlands found scattered by the thousands across the Atlantic Coastal Plain. The scenic Little Pee Dee River is east of the bays, which always are oriented in a NW-SE direction, with some exceeding 1,000 acres. Although their origin is unknown, speculations relate to ancient meteorites and prevailing southwesterly winds. When multiple parallel bays are in close proximity as they are in the cover image, they often are referred to as "marching bays."

Peer-Reviewed Articles (Click the linked titles to see the full abstract)

1025 Image-Based Atmospheric Corrections-Revisited and Improved
Pat S. Chavez, Jr.

Radiometric correction results generated by using entirely image-based models were as good as those generated by models that used in-situ atmospheric field measurements and RTC software. 

1037 Restoration of Corrupted Optical Fuyo-1 (JERS-1) Data Using Frequency Domain Techniques
C.R. de Souza Filho, S.A. Drury, A.M. Denniss, R.W.T. Carlton, and D.A. Rothery

Major noise components are eliminated by means of a binary mask derived from the difference between the Fourier spectra of two channels containing noise signals at similar frequency and magnitude. 

1049 Registration Techniques for Multisensor Remotely Sensed Images
Leila M.G. Fonseca and B.S. Manjunath

A comparative study of some recent image registration methods is presented in order to enable the user to select algorithms that work best for his/her particular application domain. 

1057 The Use of Multiresolution Analysis and Wavelets Transform for Merging SPOT Panchromatic and Multispectral Image Data
Bruno Garguet-Duport, Jacky Girel, Jean-Marc Chassery, and Guy Patou

The wavelets transform method, when compared with the IHS method and the P+XS method, is the one which least distorts the spectral characteristics of the data. 

1067 Multiresolution Wavelet Decomposition Image Merger of Landsat Thematic Mapper and SPOT Panchromatic Data
David A. Yocky

The wavelet merger provided greater flexibility and the potential for higher accuracy for combining and preserving spectral-spatial information than did the IHS technique. 

1075 Multispectral Imagery Band Sharpening Study
Jim Vrabel

The effective resolution resulting from the sharpening of multispectral imagery with panchromatic imagery using four algorithms and ratios of up to 6 to 1 was studied. 

1085 An Empirical Investigation of Image Resampling Effects Upon the Spectral and Textural Super-vised Classification of a High Spatial Resolution Multispectral Image
O. Dikshit and D.P. Roy

The resampling algorithms increase the overall classification accuracies in a statistically significant manner which vary between individual classes. Each step of the production process is illustrated in detail, and experience regarding the choice of parameters in the calculation programs is stated.

Updates
New!
Softcopy
Remote Sensing
Society

Announcements
Meeting: GIS/LIS '97
Call for Nominations: ASPRS Scholarships & Fellowships and Vice Presidential Candidates
Call for Technical Articles: PE&RS

Departments
Letter to the Editor
At the Spring ASPRS Board Meeting
Board of Directors
Sustaining Members
New Members
Calendar
Index to Advertisers
Forthcoming Articles
Instructions to Authors
Classifieds
Professional Directory
Bookstore
Membership Application