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Now showing items 255-274 of 395

    • Perceptually Driven Radiosity 

      Prikryl, Jan (Prikryl, June 2001)
      Despite its popularity among researchers the radiosity method still suffers some disadvantage over other global illumination methods. Usual implementations of the radiosity method use criteria based on radiometric values ...
    • Perceptually-motivated, Interactive Rendering and Editing of Global Illumination 

      Ritschel, Tobias (Universitaet des Saarlands, 22.12.2009)
      This thesis proposes several new perceptually-motivated techniques to synthesize, edit and enhance depiction of three-dimensional virtual scenes. Finding algorithmsthat fit the perceptually economic middle ground between ...
    • The Personal Interaction Panel - a two-handed Interface for Augmented Reality 

      Szalavári, Zsolt (Szalavári, Sep 1999)
      Die Art und Weise, wie wir mit dem ständig wachsendem Informationsraum, der uns umgibt umgehen wird sich in den nächsten Jahren dramatisch ändern. Die Forschung auf dem Gebiet der Augmented Reality bietet eine sanfte Methode ...
    • Photon Tracing for Complex Environments 

      Wilkie, Alexander (Wilkie, April 2001)
      Qualitativ hochwertige Bildsyntheseverfahren haben im Allgemeinen das Problem, daß sie bei Anwendung auf komplexe Szenen entweder zu lange Rechenzeiten ben¨otigen, oder daß ihr Speicherplatzbedarf zu groß wird bei manchen ...
    • Photorealistic and Hardware Accelerated Rendering of Complex Scenes 

      Hey, Heinrich (Hey, May 2002)
      Diese Arbeit präsentiert neue Methoden zur effizienten fotorealistischen und Hardware-beschleunigten Bildgenerierung von Szenen die komplexe globale Beleuchtung aufweisen, und zusätzlich auch groß sein können. Das beinhaltet ...
    • Physically Based Modeling of Micro-Appearance 

      Huang, Weizhen (University of Bonn, 2023-07-11)
      This dissertation addresses the challenges of creating photorealistic images by focusing on generating and rendering microscale details and irregularities, because a lack of such imperfections is usually the key aspect of ...
    • Physically based rendering of synthetic objects in real environments 

      Joel, Kronander (Linköping University Electronic Press, 2016-12-04)
      This thesis presents methods for photorealistic rendering of virtual objects so that they can be seamlessly composited into images of the real world. To generate predictable and consistent results, we study physically based ...
    • Physics-based Reconstruction and Animation of Humans 

      Ichim, Alexandru Eugen (Ecole Polytechnique Federale de Lausanne, 2017-09-22)
      Creating digital representations of humans is of utmost importance for applications ranging from entertainment (video games, movies) to human-computer interaction and even psychiatrical treat- ments. What makes building ...
    • Plenoptic Light Transport 

      Jarabo, Adrián (2015-11-27)
      In this thesis we focus on the multidimensional nature of light transport as described by the plenoptic function, and in particular in the angular and temporal domains. While traditional imaging has been limited to ...
    • Pointing Facilitation Techniques for 3D Object Selection in Virtual Environments 

      Argelaguet Sanz, Fernando (Argelaguet Sanz, 2011-07-04)
      Selection is one of the fundamental tasks in virtual reality applications and the initial task for most common user's interactions in a virtual environment. In this thesis we analyze major factors influencing selection ...
    • Position-based Skin Deformations for Interactive Character Animation 

      Abu Rumman, Nadine (2016-03-03)
      Skeletal animation is a widely used technique for animating articulated characters, such as humans and animals. In skeleton-based animation, skinning is the process of defining how the geometric surface of the character ...
    • Practical Measurement-based Modeling and Rendering of Surface Diffraction 

      Toisoul, Antoine (2019)
      Computer graphics have evolved at a very fast pace over the last forty years. Most of the research in rendering has been focused on recreating visual effects that can be explained with geometric optics, such as reflections ...
    • Practical Real-Time Strategies for Photorealistic Skin Rendering and Antialiasing 

      Jimenez, Jorge (Jimenez, 2012-07-13)
      The first topic of this thesis, photorealistic skin rendering, is of extreme importance to create believable special effects in cinematography,but it has been ignored to an extent by the game industry. However, in the last ...
    • Precise Depth Image Based Real-Time 3D Difference Detection 

      Kahn, Svenja (Kahn, 2014-03-25)
      Then, this thesis answers Q2 by providing solutions for enhancing the 3D difference detection accuracy, both by precise pose estimation and by reducing depth measurement noise. A precise variant of the 3D difference detection ...
    • Preoperative Surgical Planning 

      Fauser, Johannes Ludwig (2020-04-29)
      Since several decades, minimally-invasive surgery has continuously improved both clinical workflow and outcome. Such procedures minimize patient trauma, decrease hospital stay or reduce risk of infection. Next generation ...
    • Printing Beyond Color: Spectral and Specular Reproduction 

      Samadzadegan, Sepideh (2015-11-30)
      For accurate printing (reproduction), two important appearance attributes to consider are color and gloss. These attributes are related to two topics focused on in this dissertation: spectral reproduction and specular ...
    • Priority Scheduling for Networked Virtual Environments 

      Faisstnauer, Christian (Faissnauer, June 2001)
      Ein Mangel an Resourcen ist ein Problem, das bei nahezu allen Virtual-Reality Applikationen ( Virtual Environments ) und Videospielen beobachtet werden kann. Die Netzwerk-Bandbreite, der Durchsatz der Graphik-Pipeline, ...
    • Privacy and Security Assessment of Biometric Template Protection 

      Zhou, Xuebing (Zhou, 2011-09-19)
      Biometrics enables convenient authentication based on a person s physical or behavioral characteristics. In comparisonwith knowledge- or token-based methods, it links an identity directly to its owner. Furthermore, it can ...
    • The Probabilistic Active Shape Model: From Model Construction to Flexible Medical Image Segmentation 

      Kirschner, Matthias (Kirschner, 2013-07-04)
      Automatic processing of three-dimensional image data acquired with computed tomography or magnetic resonance imaging plays an increasingly important role in medicine. For example, the automatic segmentation of anatomical ...
    • Procedural noises for the design of small-scale structures in Additive Manufacturing 

      Tricard, Thibault (2022-04-08)
      The democratization of AM has sparked a renewed interest in its potential applications. Among these, the ability to print small-scale structures is particularly promising: The geometry of internal small-scales structures ...