Product Tests in Virtual Reality: Lessons Learned during Collision Avoidance Development for Drones

Virtual reality (VR) and real-world simulations have become an important tool for product development, product design, and product tests. Product tests in VR have many advantages, such as reproducibility and shortened development time. In this paper, we investigate the virtual testing of a collision avoidance system for drones in terms of economic benefits. Our results show that virtual tests had both positive and negative effects on the development, with the positive aspects clearly predominating. In summary, the tests in VR shorten the development time and reduce risks and therefore costs. Furthermore, they offer possibilities not available in real-world tests. Nevertheless, real-world tests are still important

The Preparation of 3D-Content for Interactive Visualization

The presentation of 3D content is an essential part of many industrial and scientific projects. Interactive visualizations are much more useful than images and pre-rendered videos. But the creation process can be an important cost factor. Further-more, the outcome of such visualizations has to compete with state of the art computer games. It is not sufficient for interactive presentations to have the 3D content and the rendering software. The content has to be modified. In the best case the data only has to be converted to be understood by the presentation application. This task can be automated by conversion software. But in most cases the content has to be modified beyond that. Optimized scenes for interactive rendering are hardly created automatically and the modification is a time and cost-intensive procedure. Suitable measures to reduce the time and cost effort are described in this article

Embedding Biological Information in a Scene Graph System

We present the Bio Scene Graph (BioSG) for visualization of biomolecular structures based on the scene graph system OpenSG. The hierarchical model of primary, secondary and tertiary structures of molecules used in the organic chemistry is mapped to a graph of nodes when loading molecular files. We show that using BioSG, displaying molecules can be integrated in other applications, for example in medical applications. Additionally, existing algorithms and programs can be easily adapted to display the results with BioSG

Probability of Globality

The objective of global optimization is to find the globally best solution of a model. Nonlinear models are ubiquitous in many applications and their solution often requires a global search approach. This article presents a probabilistic approach to determine the probability of a solution being a global minimum. The approach is independent of the used global search method and only requires a limited, convex parameter domain A as well as a Lipschitz continuous function f whose Lipschitz constant is not needed to be known

The Preparation of 3D-Content for Interactive Visualization

The presentation of 3D content is an essential part of many industrial and scientific projects. Interactive visualizations are much more useful than images and pre-rendered videos. But the creation process can be an important cost factor. Further-more, the outcome of such visualizations has to compete with state of the art computer games. It is not sufficient for interactive presentations to have the 3D content and the rendering software. The content has to be modified. In the best case the data only has to be converted to be understood by the presentation application. This task can be automated by conversion software. But in most cases the content has to be modified beyond that. Optimized scenes for interactive rendering are hardly created automatically and the modification is a time and cost-intensive procedure. Suitable measures to reduce the time and cost effort are described in this article

Embedding biomolecular information in a scene graph system

We present the Bio Scene Graph (BioSG) for visualization of biomolecular structures based on the scene graph system OpenSG. The hierarchical model of primary, secondary and tertiary structures of molecules used in the organic chemistry is mapped to a graph of nodes when loading molecular files. We show that using BioSG, displaying molecules can be integrated in other applications, for example in medical applications. Additionally, existing algorithms and programs can be easily adapted to display the results with BioSG