Contour Lines Generation in Karstic Plateaus for Topographic Maps

Contour Lines Recognition from Raster Topographic Maps

Map digitization is still an ongoing research in development of GIS, photogrammetry, remote sensing, military, urban planning and etc. Majority of recent approach, either associates with human interaction or semi-automated process are insufficient in various aspects. There are usually time-consuming, inefficient, and shown inaccuracies in digitized data. This research is intended to develop an ...

Automatic Contour Labeling for Scanned Topographic Maps

In many mapping organizations, existing topographic paper maps comprise the most complete source of elevation. data; the objective of this research is to capture the elevation data (which is in contour form) in a GIS. The topographic relief plate which shows no height information can be scanned into a GIS. The remaining task is then to label these isolines. This paper discusses a methodology fo...

A New Framework for the Extraction of Contour Lines in Scanned Topographic Maps

3D simulations requested in various applications had led to the development of fast and accurate terrain topography measurement techniques. In this paper, we are presenting a novel framework dedicated to the semiautomatic processing of scanned maps, extracting the contour lines vectors and building a digital elevation model on their basis, fulfilled by a number of stages discussed in detail thr...

Contour Line Recognition From Scanned Topographic Maps

Contour Extraction and Visulization from Topographic Maps

Recognition of features in topographic maps is useful for GIS applications. In particular, elevation data can be extracted and utilized by recognizing contour lines in maps. In this project, the viability of contour extraction using image segmentation and Delaunay triangulation for line reconstruction was investigated. Results suggest that, while the method has a high success rate for well beha...