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Contour Line Tracing Algorithm for Digital Topographic Maps
Contour Line Tracing Algorithm for Digital Topographic Maps. ... Contour line is the main linear feature on topographic maps. Extraction of contour lines is tedious and time-consuming process, and ...
Contour Line Tracing Algorithm for Digital Topographic ...
These contour lines are also used for generating Digital Elevation Model (DEM) for 3D surface generation from any satellite imagery or aerial photographs. This paper suggests an algorithm that can be used for tracing contour lines automatically from contour maps extracted from the topographical sheets and creating a database....
 Contour Line Tracing Algorithm for Digital Topographic Maps
Contour Line Tracing Algorithm for Digital Topographic Maps Ratika Pradhan ratika_pradhan@yahoo.co.in Department of CSE, SMIT, Rangpo, Sikkim, INDIA
Contour Line Tracing Algorithm for Digital Topographic Maps
These contour lines are also used for generating Digital Elevation Model (DEM) for 3D surface generation from any satellite imagery or aerial photographs. This paper suggests an algorithm that can be used for tracing contour lines automatically from contour maps extracted from the topographical sheets and creating a database....
27 Ideas for Teaching with Topographic Maps
The USGS publishes approximately 57,000 different topographic maps covering the United States. Topographic maps show contour lines (elevation and landforms), hydrography (rivers, lakes, marshes), transportation (roads, trails, railroads, airports), vegetation, boundaries, survey markers, urban areas, buildings, and a variety of other features....
Contour Line Tracing Algorithm for Digital Topographic Maps
Corpus ID: 16501852. Contour Line Tracing Algorithm for Digital Topographic Maps @inproceedings{Pradhan2010ContourLT, title={Contour Line Tracing Algorithm for Digital Topographic Maps}, author={Ratika Pradhan and Shikhar Kumar and Ruchika Agarwal and Mohan P. Pradhan and Mrinal Kanti Ghose and shikarkum}, year={2010} }
Identification of Contour Lines from Average-Quality ...
Contour line is the main linear feature on topographic maps. Extraction of contour lines is tedious and time-consuming process, but is still an interesting problem. ... M. P. Pradhan, and M. K. Ghose, “Contour line tracing algorithm for digital topographic maps,” International Journal of Image Processing, vol. 4, no. 2, pp. 156–163, 2010 ......
Contour line - Wikipedia
A contour line (also isoline, isopleth, or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function f(x, y) parallel to the (x, y)-plane.In cartography, a contour line (often just called a "contour") joins points of equal elevation ......
Contour Line Tracing Algorithm for Digital Topographic Maps
This paper suggests an algorithm that can beused for tracing contour lines automatically from contour maps extracted from thetopographical sheets and creating a database. In our approach, we haveproposed a modified Moore’s Neighbor contour tracing algorithm to trace allcontours in the given topographic maps....
A new approach to the reconstruction of contour lines ...
Thanks to the specific color of contour lines, their extraction from topographic maps can be done without more effort. After extracting the contour lines, gaps may occur because other features in topographic maps can overlay and cross the contour lines. Gaps cause problems for generation of DEM and construction of 3D simulation....
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