Comput. and struct.: Sheppard, D. J. and
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Article
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1973
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Elsevier Science
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English
⚖ 123 KB
The problem of automatic dtgmzmg of contour maps is discussed An analysis of the structure of a general contour map Is performed and its topological properties are employed in the development of a new scannlng algorithm Detection and recognition of contour lines is achieved by a two-colour labelling