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An appearance‐preserving simplification method for complex 3D building models / Jiangfeng She in Transactions in GIS, vol 23 n° 2 (April 2019)  

Public [article]  inTransactions in GIS > vol 23 n° 2 (April 2019) . - pp 275 - 293 Titre : An appearance‐preserving simplification method for complex 3D building models Type de document : Article/Communication Auteurs : Jiangfeng She, Auteur ; Xiaoyan Gu, Auteur ; Junzhong Tan, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 275 - 293 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] modèle 3D de l'espace urbain [Termes IGN] réduction (complexité) [Termes IGN] rendu réaliste [Termes IGN] SIG 3D [Termes IGN] simplification de surface [Termes IGN] texturage [Vedettes matières IGN] Géovisualisation Résumé : (Auteur) The simplification of 3D building models to effectively reduce model complexity and improve rendering efficiency is an important component of 3D GIS. To reduce the data volume while preserving the model appearance, this article proposes a novel simplification method for complex 3D building models. Texture discontinuities are addressed by developing a new data model that records the mapping relation between the texture coordinates of each vertex and its neighboring triangles. The surface mesh of the building model is then segmented into regions, guided by topology and appearance. Finally, the mesh segmentation information is used to derive an improved error metric that considers both geometric and texture errors, and the texture coordinates are adjusted after each simplification operation. A series of comparative experiments alongside traditional methods demonstrates that our approach achieves a good balance between geometric fidelity and texture preservation, and produces simplified 3D building models with better visual quality. Numéro de notice : A2019-251 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12518 Date de publication en ligne : 05/02/2019 En ligne : https://doi.org/10.1111/tgis.12518 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93007 [article]