Now showing items 171-190 of 307

    • Object Hierarchies for Efficient Rendering 

      Mueller, Gordon (Mueller, 2004)
      The efficient synthesis of computer generated images for large three-dimensional modelsis one of the major challenges of computer graphics research. Despite the rapid growth ofavailable computational power of todays ...
    • Occlusion Culling for Real-Time Rendering of Urban Environments 

      Wonka, Peter (Wonka, June 2001)
      Diese Dissertation besch¨aftigt sich mit der Visualisierung von dreidimensionalen Stadtmodellen f¨ur Anwendungen wie Stadtplanung und Fahrsimulation. F¨ur eine Simulation ist es wichtig, daß ein Benutzer interaktiv in der ...
    • Of Assembling Small Sculptures and Disassembling Large Geometry 

      Kerber, Jens (Kerber, 2013-09-17)
      This thesis describes the research results and contributions that have been achieved during the author's doctoral work. It is divided into two independent parts, each of which is devoted to a particular research aspect.The ...
    • On Generalized Barycentric Coordinates and Their Applications in Geometric Modeling 

      Langer, Torsten (2008)
      Generalized barycentric coordinate systems allow us to express the position of a point in space with respect to a given polygon or higher dimensional polytope. In such a system, a coordinate exists for each vertex of the ...
    • On Visualization and Reconstruction from Non-uniform Point Sets 

      Vuçini, Erald (Vuçini, 27.11.2009)
      Technological and research advances in both acquisition and simulation devices provide continuously increasing high-resolution volumetric data that by far exceed today's graphical and display capabilities. Non-uniform ...
    • On-site Surface Reflectometry 

      Riviere, Jérémy (EThOS, 2017-08-26)
      The rapid development of Augmented Reality (AR) and Virtual Reality (VR) applications over the past years has created the need to quickly and accurately scan the real world to populate immersive, realistic virtual environments ...
    • Online Surface Reconstruction From Unorganized Point Clouds With Integrated Texture Mapping 

      Vierjahn, Tom (2015-11-11)
      Digital representations of the real world are becoming more and more important for different application domains. Individual objects, excavation sites or even complete cities can be digitized with today’s technology so ...
    • Opacity Optimization and Inertial Particles in Flow Visualization 

      Günther, Tobias (2016-06-30)
      Vector field visualization is a major discipline of scientific visualization that helps to push the frontiers of research in fluid mechanics, medicine, biology, astrophysics and many more. In particular, vector field ...
    • OpenSG: A Scene Graph System for Flexible and Efficient Realtime Rendering for Virtual and Augmented Reality Applications 

      Reiners, Dirk (Reiners, Dirk, June 2002)
      This work opens a path to keep scenegraphs a viable paradigm for real-time rendering systems for the foreseeable future, which in the computer and computer graphics area does not exceed three to five years. The analysis ...
    • Operator Representations in Geometry Processing 

      Azencot, Omri (2017)
      This thesis introduces fundamental equations as well as discrete tools and numerical methods for carrying out various geometrical tasks on three-dimensional surfaces via operators. An example for an operator is the Laplacian ...
    • Optical Tracking - From User Motion To 3D Interaction 

      Dorfmüller- Ulhaas, Klaus (Dorfmüller - Ulhaas, Dec 2002)
      Das Verfolgen von Benutzerbewegungen ist eine der grundlegenden Aufgaben, die von jedem System für Virtual Reality (VR) bereitgestellt werden muß. Es sind unterschiedliche Methoden bekannt, wie diese Verfolgung ...
    • Optimal Spatial Registration of SLAM for Augmented Reality 

      Wientapper, Folker (2019-03-15)
      Augmented reality (AR) is a paradigm that aims at fusing the perceived real environment of a human with digital information located in 3D space. Typically, virtual 3D graphics are overlayed into the captured images of a ...
    • Optimization of Inverse Reflector Design 

      Mas, Albert (Mas, 2011-03-30)
      <p>This thesis presents new methods for the inverse reflector design problem.We have focused on three main topics that are deeply related with theproblem: the use of real and complex light sources, the definition of ...
    • Optimization Techniques For ComputationallyExpens Ive Rendering Algorithms 

      Navarro Gil, Luis Fernando (Navarro Gil, 2012-04-01)
      This thesis focuses on a group of rendering methods known by their high computational requirements. We analyse them in detail and reduce their cost using a set of conceptually different approaches.We first focus on rendering ...
    • Passive Spatio-Temporal Geometry Reconstruction of Human Faces at Very High Fidelity 

      Beeler, Thabo (Beeler, 2012-09-18)
      The creation of realistic synthetic human faces is one of the most important and at the same time also most challenging topics in computer graphics. The high complexity of the face as well as our familiarity with it renders ...
    • Path Sampling Techniques for Efficient Light Transport Simulation 

      Georgiev, Iliyan (2015-06)
      Reproducing the interactions between light and matter in a physically accurate way can significantly improve the realistic appearance of synthetic images, however such effects can be very computationally expensive to ...
    • Path-line Oriented Visualization of Dynamical Flow Fields 

      Shi, Kuangyu (2008)
      An effective visual representation of dynamical flow behavior is still a challenging problem of modern flow visualization. Path-lines are important characteristic curves of dynamical flow fields. In this thesis, we focus ...
    • Pattern Search for the Visualization of Scalar, Vector, and Line Fields 

      Wang, Zhongjie (2015-12-18)
      The main topic of this thesis is pattern search in data sets for the purpose of visual data analysis. By giving a reference pattern, pattern search aims to discover similar occurrences in a data set with invariance to ...
    • Perception Based Image Editing 

      Lopez-Moreno, Jorge (Lopez-Moreno, 2011-04-08)
      Image editing and post-processing techniques have matured over the years, making it difficult (vergingon impossible) to assess whether an image has been digitally enhanced or modiffied somehow. However,complex manipulations ...
    • Perception-Augmenting Illumination 

      Solteszova, Veronika (Solteszova, 2012-10-04)
      At each stage of the visualization pipeline, the information is impeded by loss or by noise because of imprecise acquisition, storage limitations, and processing. Furthermore, it passes through the complex and not yet well ...