Now showing items 235-254 of 395

    • 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 of Photogrammetric 3D Assets 

      Maggiordomo, Andrea (Università degli Studi di Milano, 2023)
      The photogrammetric 3D reconstruction pipeline has emerged in recent years as the prominent technology for a variety of use cases, from heritage documentation to the authoring of high-quality photo-realistic assets for ...
    • 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 ...
    • Parametric Procedural Models for 3D Object Retrieval, Classification and Parameterization 

      Getto, Roman (2019-04-05)
      The amount of 3D objects has grown over the last decades, but we can expect that it will grow much further in the future. 3D objects are also becoming more and more accessible to non-expert users. The growing amount of ...
    • 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 from Photorealism to Perceptual Realism 

      Zhong, Fangcheng (2022-09)
      Photorealism in computer graphics --- rendering images that appear as realistic as photographs --- has matured to the point that it is now widely used in industry. With emerging 3D display technologies, the next big challenge ...
    • 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 ...
    • Perception-Aware Computational Fabrication: Increasing The Apparent Gamut of Digital Fabrication 

      Piovarci, Michal (Università della Svizzera italiana, 2020-10-19)
      Haptic and visual feedback are important for assessing objects' quality and affordance. One of the benefits of additive manufacturing is that it enables the creation of objects with personalized tactile and visual properties. ...
    • Perception-inspired Tone Mapping 

      Krawczyk, Grzegorz M. (Krawczyk, 2007-11-30)
      The display of high dynamic range images and video requires a tonemapping algorithm to depict their original appearance on existing display devices whose capabilities in terms of dynamic range are insufficient. The insightful ...
    • Perceptual Display: Exceeding Display Limitations by Exploiting the Human Visual System 

      Didyk, Piotr (Didyk, Piotr, 2012-08-20)
      Existing displays have a number of limitations, which make it difficult to realistically reproduce real-world appearance; discrete pixels are used to represent images, which are refreshed only a limited number of times ...
    • Perceptual modeling for stereoscopic 3D 

      Kellnhofer, Petr (2016-11-04)
      Virtual and Augmented Reality applications typically rely on both stereoscopic presentation and involve intensive object and observer motion. A combination of high dynamic range and stereoscopic capabilities become popular ...