Research of Meteorological Facsimile Map Vectorization Algorithm

DOI

10.2991/icacsei.2013.29How to use a DOI?

Keywords

Meteorological facsimile maps, annotation, isobars, vectorization.

Abstract

An algorithm for extracting information from meteorological facsimile maps and transform the map into vector format is proposed. The algorithm contains two parts. The first one is annotation information extraction method based on the regular pattern of position and angle, the second part is isobars vectorization based on tracking and filtering. As the annotations change with latitude line, relevant characters can be extracted on the basis of removing the base map and then thinning the isobars. After removing noise and connecting broken isobars, seamless and smooth isobars are extracted by means of - filtering. Then extracted isobars are approximated by polygonal lines to compress the data of isobars. Experiments show that the proposed algorithm can extract annotation and vectorize isobars.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ling ling Feng
AU  - Guo qing Qi
PY  - 2013/08
DA  - 2013/08
TI  - Research of Meteorological Facsimile Map Vectorization Algorithm
BT  - Proceedings of the 2013 International Conference on Advanced Computer Science and Electronics Information (ICACSEI 2013)
PB  - Atlantis Press
SP  - 118
EP  - 122
SN  - 1951-6851
UR  - https://doi.org/10.2991/icacsei.2013.29
DO  - 10.2991/icacsei.2013.29
ID  - Feng2013/08
ER  -