COMPUTER PROCESSING OF SAR L-BAND IMAGERY
A continuing problem with the interpretation of synthetic aparture radar (SAR) data, especially in the image format, is the fact that such radar systems generally are not calibrated. This tends to reduce the validity of computer processing in the form of automatic interpretation as it may be applied to SAR imagery. However, for some classes of targets, i.e., those which have especially constant and high or low returns, such automatic discrimination can be attained easily and quickly by digitally filtering and thresholding the data. We have applied such procedures to two scenes, one of sea ice and the other of fresh-water lakes. The orientation of loads (through a Fourier transform) together with the percentage of open water in the entire sea ice scene is quickly attained. For the lake scene the areas of lakes were determined with a high accuracy by using the standard library routines in a General Electric Image 100 system. These techniques demonstrate the validity of machine processing for obtaining quantitative data for some classes of targets as seen by uncalibrated synthetic aperture radars. /Author/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00991112
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Corporate Authors:
American Society of Photogrammetry
105 North Virginia Avenue
Falls Church, VA United States 22046 -
Authors:
- Bryan, M L
- Stromberg, W D
- Farr, T G
- Publication Date: 1977-10
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 1283-94
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Serial:
- Photogrammetric Engineering and Remote Sensing
- Volume: 43
- Issue Number: 10
- Publisher: American Society for Photogrammetry and Remote Sensing
- ISSN: 0099-1112
Subject/Index Terms
- TRT Terms: Computer programs; Data analysis; Filters; Fourier analysis; Imagery; Lakes; Mathematical analysis; Radar; Seawater
- Subject Areas: Design; Highways;
Filing Info
- Accession Number: 00167905
- Record Type: Publication
- Files: TRIS
- Created Date: Feb 16 1978 12:00AM