Centre de documentation
scientifique

Fourier-based multi-scale representation and progressive transmission of cartographic curves on the internet / Pengcheng Liu in Cartography and Geographic Information Science, vol 43 n° 5 (November 2016)  

Public [article]  inCartography and Geographic Information Science > vol 43 n° 5 (November 2016) . - pp 454 - 468 Titre : Fourier-based multi-scale representation and progressive transmission of cartographic curves on the internet Type de document : Article/Communication Auteurs : Pengcheng Liu, Auteur ; Xingong Li, Auteur ; Weibo Liu, Auteur ; Tinghua Ai, Auteur Année de publication : 2016 Article en page(s) : pp 454 - 468 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] carte topographique [Termes IGN] contour [Termes IGN] généralisation cartographique automatisée [Termes IGN] géomatique web [Termes IGN] ligne (géométrie) [Termes IGN] représentation multiple [Termes IGN] série de Fourier [Termes IGN] transmission de données [Vedettes matières IGN] Généralisation Résumé : (Auteur) Automatic generation of multi-scale representations from the same spatial data source has been the research focus in map generalization for a long time. Based on the Fourier technique, this paper proposes a continuous, multi-scale representation model for progressive transformation of cartographic curves on the Internet. In our method, all the curves, whether closed or open, are depicted as periodical functions which are further expressed as Fourier series. The convergence degrees of the Fourier series are explored for different kinds of curves, and truncating frequencies are derived based on the similarity between the original and reconstructed curves. Using information theory and the Radical Law in cartography, the relationship between map scales and Fourier frequencies is established. Based on the proposed multi-scale model, we also introduce the principles and implementation of a progressive transmission method. Our method is evaluated using the contours from a topographic map. The results show that our model is a valid approach to multi-scale representation of cartographic curves. Numéro de notice : A2016-695 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2015.1088799 En ligne : https://doi.org/10.1080/15230406.2015.1088799 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82034 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
032-2016051	RAB	Revue	Centre de documentation	En réserve L003	Disponible