A Synergistic Approach for Recovering Occlusion-Free Textured 3D Maps of Urban Facades from Heterogeneous Cartographic Data

TL;DR

This paper introduces a practical method to generate clear, textured 3D maps of urban facades by combining terrestrial images, 3D point clouds, and area data, overcoming occlusion challenges in dense cities.

Contribution

It presents a novel synergistic approach that leverages multiple data sources to recover complete facade geometry and textures in urban environments.

Findings

Effective recovery of occlusion-free facade textures.

Improved completeness of 3D facade models.

Enhanced urban mapping accuracy.

Abstract

In this paper we present a practical approach for generating an occlusion-free textured 3D map of urban facades by the synergistic use of terrestrial images, 3D point clouds and area-based information. Particularly in dense urban environments, the high presence of urban objects in front of the facades causes significant difficulties for several stages in computational building modeling. Major challenges lie on the one hand in extracting complete 3D facade quadrilateral delimitations and on the other hand in generating occlusion-free facade textures. For these reasons, we describe a straightforward approach for completing and recovering facade geometry and textures by exploiting the data complementarity of terrestrial multi-source imagery and area-based information.