Thomas H. Kolbe

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Virtual 3D city models provide important information for different aspects of disaster management. In this context, up-to-dateness of and flexible access to 3D city models are of utmost importance. Spatial Data Infrastructures (SDI) provide the appropriate framework to cover both aspects, integrating distributed data sources on demand. In this paper we(More)
A multitude of new applications is quickly emerging in the field of Building Information Models (BIM). BIM models describe buildings with respect to their spatial and especially semantic and thematic characteristics. Since BIM models are manually created during the planning and construction phase, they are only available for newly planned or recently(More)
We propose a model-based approach to automated 3D extraction of buildings from aerial images. We focus on a reconstruction strategy that is not restricted to a small class of buildings. Therefore, we employ a generic modeling approach which relies on the well de ned combination of building part models. Building parts are classi ed by their roof type.(More)
This contribution reports on concepts, implementation, and experience of the Berlin virtual 3D city model, a project that has developed a system for integrating, managing, integrating, presenting, and distributing complex urban geoinformation. It has been initiated by the Senate Department of Economics and the Senate Department of Urban Development in order(More)
This report is of a live piglet derived from an embryo produced by intracytoplasmic sperm injection and carried to term. In vivo-matured oocytes were injected with in vitro-capacitated spermatozoa and after 40 h of culture, 2 to 4-cell-stage embryos were transferred to the oviducts of oestrus induced gilts 24 h after the expected ovulation time. Pregnancy(More)
In order to support pedestrians in the tasks of orientation and wayfinding with mobile devices appropriate visualizations of their location, its surrounding, and background information are needed. In this paper we present two complementary concepts for the combination of realistic views and location specific information that can be implemented with current(More)
Existing model persistence frameworks either store models as a whole or object by object. Since most modeling tasks work with larger aggregates of a model, existing persistence frameworks either load too many objects or access many objects individually. We propose to persist a model broken into larger fragments. First, we assess the size of large models(More)