Now showing items 61-80 of 307

    • Edit Propagation using Geometric Analogies 

      Guerrero, Paul (2014-09-19)
      Modeling complex geometrical shapes, like city scenes or terrains with dense vegetation, is a time-consuming task that cannot be automated trivially. The problem of creating and editing many similar, but not identical ...
    • Effective Retrieval and Visual Analysis in Multimedia Databases 

      Schreck, Tobias (Schreck, Tobias, April 2007)
      Based on advances in acquisition, storage, and dissemination technology, increasing amounts of multimedia content such as images, audio, video, or 3D models, become available. The Feature Vector (FV) paradigm is one of the ...
    • Efficient Acquisition, Representation, and Rendering of Light Fields 

      Schirmacher, Hartmut (Schirmacher, Hartmut, 2003-12-16)
      In this thesis we discuss the representation of three-dimensional scenes using image data (image-based rendering), and more precisely the so-called light field approach. We start with an up-to-date survey on previous ...
    • Efficient Illumination Algorithms for Global Illumination in Interactive and Real-Time Rendering 

      Vardis, Konstantinos (National Archive of PhD Theses, 2017-11-22)
      The synthesis of photorealistic digital imagery has long been considered as one of the most fascinating domains in the field of computer graphics. Its main goal is the generation of visually stunning images, mimicking ...
    • Efficient Line and Patch Feature Characterization and Management for Real-time Camera Tracking 

      Wuest, Harald (Wuest, 2008)
      One of the key problems of augmented reality is the tracking of the camera position andviewing direction in real-time. Current vision-based systems mostly rely on the detectionand tracking of fiducial markers. Some markerless ...
    • Efficient Methods for Computational Light Transport 

      Marco, Julio (Universidad de Zaragoza, 2018-10-26)
      In this thesis we present contributions to different challenges of computational light transport. Light transport algorithms are present in many modern applications, from image generation for visual effects to real-time ...
    • Efficient methods for physically-based rendering of participating media 

      Elek, Oskar (2016-02-02)
      This thesis proposes several novel methods for realistic synthesis of images containing participating media. This is a challenging problem, due to the multitude and complexity of ways how light interacts with participating ...
    • Efficient Object-Based Hierarchical Radiosity Methods 

      Schäfer, Stephan (Schäfer, Stephan, 2000-05-30)
      The efficient generation of photorealistic images is one of the main subjects in the field of computer graphics. In contrast to simple image generation which is directly supported by standard 3D graphics hardware, ...
    • Efficient Shadow Map Filtering 

      Annen, Thomas (Annen, Thomas, 2008-12-12)
      Shadows provide the human visual system with important cues to sense spatial relationshipsin the environment we live in. As such they are an indispensable partof realistic computer-generated imagery. Unfortunately, visibility ...
    • Efficient, Image-Based Appearance Acquisitionof Real-World Objects 

      Lensch, Hendrik Peter Asmus (Lensch, Hendrik Peter Asmus, 2003-12-15)
      Two ingredients are necessary to synthesize realistic images: an accurate rendering algorithm and, equally important, high-quality models in terms of geometry and reflection properties. In this dissertation we focus ...
    • Enhancing Digital Fabrication with Advanced Modeling Techniques 

      Malomo, Luigi (2017-04)
      A few years ago there were only expensive machineries dedicated to rapid prototyping for professionals or industrial application, while nowadays very affordable solutions are on the market and have become useful tools for ...
    • Error-Concealed Image-based Rendering 

      Eisemann, Martin (Eisemann, 2011-07-06)
      Creating photo-realistic images has been one of the major goals in computer graphics since its early days. Instead of modeling the complexity of nature with standard modeling tools, imagebased approaches aim at exploiting ...
    • Evaluation and Enhancement of HDR Image Appearance on Displaysof Varying Dynamic Range 

      Yoshida, Akiko (Yoshida, Akiko, 2008-12-16)
      The increasingly widespread availability of high dynamic range (HDR) technology has led to active study of the characteristics of the human visual system (HVS) in terms of brightness, lightness, contrast, and color ...
    • Exploiting Coherence in Lighting and Shading Computations 

      Herzog, Robert (Herzog, Robert, 2010-07-01)
      Computing global illumination (GI) in virtual scenes becomes increasingly attractive even for real-time applications nowadays. GI delivers important cues inthe perception of 3D virtual scenes, which is important for material ...
    • Exploratory Search in Time-Oriented Primary Data 

      Bernard, Jürgen (2015-11-20)
      In a variety of research fields, primary data that describes scientific phenomena in an original condition is obtained. Time-oriented primary data, in particular, is an indispensable data type, derived from complex ...
    • Exploring Appearance and Style in Heterogeneous Visual Content 

      Garces, Elena (2017-10-19)
      There are multiple ways to capture and represent the visual world; a drawing, a photograph, or a video are a few examples of visual data that are very frequent nowadays. Despite the different nature of each domain, there ...
    • Expressive Visualization and Rapid Interpretation of Seismic Volumes 

      Patel, Daniel (Patel, 2009-08-01)
      One of the most important resources in the world today is energy. Oil and gas provide two thirds of the world energy consumption, making the world completely dependent on it. Locating and recovering the remaining oil and ...
    • Eye Reconstruction and Modeling for Digital Humans 

      Bérard, Pascal (2018)
      The creation of digital humans is a long-standing challenge of computer graphics. Digital humans are tremendously important for applications in visual effects and virtual reality. The traditional way to generate digital ...
    • Face2Face: Real-time Facial Reenactment 

      Thies, Justus (2017)
      In this dissertation we show our advances in the field of 3D reconstruction of human faces using commodity hardware. Beside the reconstruction of the facial geometry and texture, real-time face tracking is demonstrated. The ...
    • Faces And Hands- Modeling and Animating Anatomical and Photorealistic Models with Regard to the Communicative Competence of Virtual Humans 

      Albrecht, Irene (2005)
      In order to be believable, virtual human characters must be able to communicate in a human-like fashion realistically. This dissertation contributes to improving and automating several aspects of virtual conversations. ...