An ontology for the generalization of the bathymetry on nautical charts - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2014

An ontology for the generalization of the bathymetry on nautical charts

Résumé

On nautical charts, undersea features are portrayed by sets of soundings (depth points) and isobaths (depth contours) from which map readers can interpret landforms. Different techniques were developed for automatic soundings selection and isobath generalisation from a sounding set. These methods are mainly used to generate a new chart from the bathymetric database or from a large scale chart through selection and simplification however a part of the process consists in selecting and emphasising undersea features on the chart according to their relevance to navigation. Its automation requires classification of the features from the set of isobaths and soundings and their generalisation through the selection and application of a set of operators according not only to geometrical constraints but also to semantic constraints. The objective of this paper is to define an ontology formalising undersea feature representation and the generalisation process achieving this representation on a nautical chart. The ontology is built in two parts addressing on one hand the definition of the features and on the other hand their generalisation. The central concept is the undersea feature around which other concepts are organised. The generalisation process is driven by the features where the objective is to select or emphasise information according to their meaning for a specific purpose. The ontologies were developed in Protégé and a bathymetric database server integrating the ontology was implemented. A generalisation platform was also developed and examples of representations obtained by the platform are presented. Finally, current results and on-going research are discussed.
Fichier principal
Vignette du fichier
ISPRS_14.pdf (1.43 Mo) Télécharger le fichier
Format : typeAnnex_author
Loading...

Dates et versions

hal-01081724 , version 1 (10-11-2014)

Identifiants

  • HAL Id : hal-01081724 , version 1

Citer

Jingya Yan, Eric Guilbert, Eric Saux. An ontology for the generalization of the bathymetry on nautical charts. International Society for Photogrammetry and Remote Sensing (ISPRS) Annals, ISPRS Technical Commission II on Theory and Concepts of Spatial Information Science, Oct 2014, Toronto, Canada. pp.1-7. ⟨hal-01081724⟩
87 Consultations
47 Téléchargements

Partager

Gmail Facebook X LinkedIn More