Shuang He

• PhD
• PostDoc Position at Institut national de l’information géographique et forestière

In most countries, a project for the development of an urban area has to obey zoning regulations. In France, such zoning regulations are specified in local urban planning schemes (LUPS or PLU in French) defining the right to build at the scale of a parcel. Such rules define, for example, the maximal building height. As the rules are stated in techn...

3D city models have been increasingly used in a variety of urban applications as platforms to integrate and visualize diverse information. This work addresses the production and visualization of levels of detail (LoDs) for 3D city models, towards their use in GIS applications. This work proposes a hybrid solution to producing LoDs for 3D city model...

In order to enable multi-scale urban visualization, multiple model representations at different levels of detail (LoDs) need to be produced (like by generalization) in advance or on the fly. At local scale, building groups are involved and at least medium LoD is needed in terms of visual perception. Motivated by such demands, this article proposes...

3D City Models (3DCM) are key features into decision making of several urban related problems. Therefore 3DCM are needed by several applications, but the required level-of-detail (LoD) of the model depends on the application. Our goal is to propose a multi-scale 3DCM production and use method. Our approach consists of merging, procedural modeling,...

This paper proposes a footprint-based generalization approach for 3D building groups in the context of city visualization. The goal is to reduce both geometric complexity and information density, meanwhile maintaining a rather recognizable shape. The emphasis is placed on converting 3D generalization tasks into 2D issues via buildings’ footprints....

This paper presents a novel approach to quick reconstruction of cameras and quasi-dense geometry from unordered photos of a scene. With three reconstruction goals: reliable camera postures, high-density scene geometry, and a low cost of time, our approach consists of two stages: pairwise relating and two-tier reconstruction. At the first stage, to...

This paper presents a system - Photo Traveler - for exploring large photo col-lections of a scene with a visceral 3D sense. Based on 3d-reconstruction, Photo Traveler managed to rearrange those pho-tos in 3D scene, enabling the user to ex-plore photos as if looking through the real cameras, and move between photos as if strolling the scene. Photo T...