Generation of textures and geometric pseudo-urban models with the aid of IFS

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Auteur
Date

2005

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Type de document
Périmètre
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Source

HAL SHS (Sciences de l’Homme et de la Société)

Collection

Archives ouvertes

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Centre pour la communication scientifique directe

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info:eu-repo/semantics/OpenAccess

Mots-clés En

Fractal city Urban pattern IFS Image 2D and 3D model Genetics Fusion Level of detail Shape filtering VRML

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Xavier Marsault, « Generation of textures and geometric pseudo-urban models with the aid of IFS », HAL SHS (Sciences de l’Homme et de la Société), ID : 10670/1.3dd75a...

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This paper explains our attempt to capture inner coherence of urban shapes and morphologies, by fractal analysis of 2D_ textures (top view + height) of real and synthetic city maps. The basic ideas lean on autosimilarity detection, fractal coding of regions, and processing with Iterated Function Systems (IFS). We introduce a genetic-like approach, allowing interpolation, alteration and fusion of different urban models, and leading to global or local synthesis of new shapes. Finally, a 3D reconstruction tool has been developed for converting textures to volumes in VRML, simplified enough for real time wanderings, and enhanced by some automatically generated garbage dump and decorated elements. Programs and graphic interface are developed with C++ and QT libraries

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