Directional mathematical morphology and reformalized Houghtransformation for the analysis of topographic maps
Yamada, H.
Yamamoto, K.
Hosokawa, K.
Electrotech. Lab., Tsukuba;
This paper appears in: Pattern Analysis and Machine Intelligence, IEEE Transactions on
Publication Date: Apr 1993
Volume: 15,
Issue: 4
On page(s): 380-387
ISSN: 0162-8828
References Cited: 10
CODEN: ITPIDJ
INSPEC Accession Number: 4414403
Digital Object Identifier: 10.1109/34.206957
Current Version Published: 2002-08-06
Abstract
One of the most difficult and important problems encountered in
the automatic digitizing of graphical topographic maps is the
identification and separate digitizing of different kinds of features.
Essentially, in topographic maps, there are two kinds of geometric
features: linear features, such as roads and railways that have an
arbitrary length, and symbols, which indicate a type of building or area
of land usage or even numerical information. These two types of features
are extracted and recognized by using methods based on multiangled
parallelism (MAP). The MAP operation method performs parallel
calculation on directional feature planes. The linear features are
extracted using erosion-dilation operations on the directional feature
planes, and the symbols are extracted using a reformalized and parallel
version of the generalized Hough transformation on the same directional
planes, which is called the MAP matching method. The methods have been
applied to a 1/25000 scale map
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