NDLI: VECTORIZATION OF LINEAR FEATURES IN SCANNED TOPOGRAPHIC MAPS USING ADAPTIVE IMAGE SEGMENTATION AND SEQUENTIAL LINE TRACKING

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VECTORIZATION OF LINEAR FEATURES IN SCANNED TOPOGRAPHIC MAPS USING ADAPTIVE IMAGE SEGMENTATION AND SEQUENTIAL LINE TRACKING

Content Provider	Scilit
Author	Yang, Y. An, X. Huang, L.
Copyright Year	2012
Description	Vectorization of cartographic features is a difficult task in geographic information acquisition from topographic maps. This paper presents a semi-automatic approach to linear feature vectorization directly in original scanned colour topographic maps without layer separation. In the approach, a sliding window is added on a user-given linear feature, and the current line in the window is segmented adaptively by using colour space conversion, k-means clustering and directional region growing. A thinning operation is then performed in the window and the line is tracked from the centre to the edge. By moving the window continuously along the line, vectorization is carried out by iterative operations of image segmentation, thinning and line tracking. Experimental results show that linear features in colour topographic maps can be vectorized rapidly and accurately, especially in those maps with forest tints and relief shadings.
Ending Page	108
Page Count	6
Starting Page	103
e-ISSN	21949034
DOI	10.5194/isprsarchives-xxxix-b4-103-2012
Alternate Webpage(s)	https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XXXIX-B4/103/2012/isprsarchives-XXXIX-B4-103-2012.pdf
Journal	The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Volume Number	XXXIX-B4
Language	English
Publisher	Copernicus GmbH
Publisher Date	2012-07-27
Access Restriction	Open
Subject Keyword	Cybernetical Science Linear Feature Topographic Maps Image Segmentation Line Is Tracked
Content Type	Text
Resource Type	Article

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