NDLI: Quantification of geologic lineaments by manual and machine processing techniques. [landsat satellites - mapping/geological faults

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Quantification of geologic lineaments by manual and machine processing techniques. [landsat satellites - mapping/geological faults

Content Provider	NASA Technical Reports Server (NTRS)
Author	Podwysocki, M. H. Shoup, W. C. Moik, J. G.
Copyright Year	1975
Description	The effect of operator variability and subjectivity in lineament mapping and methods to minimize or eliminate these problems by use of several machine preprocessing methods was studied. Mapped lineaments of a test landmass were used and the results were compared statistically. The total number of fractures mapped by the operators and their average lengths varied considerably, although comparison of lineament directions revealed some consensus. A summary map (785 linears) produced by overlaying the maps generated by the four operators shows that only 0.4 percent were recognized by all four operators, 4.7 percent by three, 17.8 percent by two, and 77 percent by one operator. Similar results were obtained in comparing these results with another independent group. This large amount of variability suggests a need for the standardization of mapping techniques, which might be accomplished by a machine aided procedure. Two methods of machine aided mapping were tested, both simulating directional filters.
File Size	6725350
Page Count	28
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19750022629
Archival Resource Key	ark:/13960/t22c3sn6t
Language	English
Publisher Date	1975-07-01
Access Restriction	Open
Subject Keyword	Geophysics Geological Faults Geological Surveys Maps Algorithms Terrain Analysis Operators Mathematics Computer Techniques Data Processing Mapping Imagery Artificial Intelligence Landsat Satellites Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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