Graphics Dissertation Online: Recent submissions
Now showing items 141-160 of 395
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Efficient methods for physically-based rendering of participating media
(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 ... -
Geometric Methods for Realistic Animation of Faces
(ETH Zurich, 2015)Realistic facial synthesis is one of the most fundamental problems in computer graphics, and has been sought after for approximately four decades. It is desired in a wide variety of fields, such as character animation ... -
Opacity Optimization and Inertial Particles in Flow Visualization
(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 ... -
Physically based rendering of synthetic objects in real environments
(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 ... -
Interactive Physically Based Simulation — Efficient Higher-Order Elements, Multigrid Approaches and Massively Parallel Data Structures
(2015-12-07)This thesis covers interactive physically based simulation for applications such as computer games or virtual environments. Interactivity, i.e., the option that a user can influence a system, imposes challenging ... -
Printing Beyond Color: Spectral and Specular Reproduction
(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 ... -
Exploratory Search in Time-Oriented Primary Data
(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 ... -
Guided Interactive Volume Editing in Medicine
(2016-06-28)Various medical imaging techniques, such as Computed Tomography, Magnetic Resonance Imaging, Ultrasonic Imaging, are now gold standards in the diagnosis of different diseases. The diagnostic process can be greatly improved ... -
Scalable Comparative Visualization
(2016-06-28)The comparison of two or more objects is getting an increasingly important task in data analysis. Visualization systems successively have to move from representing one phenomenon to allowing users to analyze several ... -
Accurate 3D-reconstruction and -navigation for high-precision minimal-invasive interventions
(2016-02-03)The current lateral skull base surgery is largely invasive since it requires wide exposure and direct visualization of anatomical landmarks to avoid damaging critical structures. A multi-port approach aiming to reduce such ... -
Pattern Search for the Visualization of Scalar, Vector, and Line Fields
(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 ... -
Marker-less Motion Capture in General Scenes with Sparse Multi-camera Setups
(2015-12-09)Human motion-capture from videos is one of the fundamental problems in computer vision and computer graphics. Its applications can be found in a wide range of industries. Even with all the developments in the past years, ... -
A Head Model with Anatomical Structure for Facial Modeling and Animation
(2003)In this dissertation, I describe a virtual head model with anatomical structure. The model is animated in a physics-based manner by use of muscle contractions that in turn cause skin deformations; the simulation is ef ... -
Faces And Hands- Modeling and Animating Anatomical and Photorealistic Models with Regard to the Communicative Competence of Virtual Humans
(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. ... -
Towards Real-Time Novel View Synthesis Using Visual Hulls
(2005)This thesis discusses fast novel view synthesis from multiple images taken from different viewpoints. We propose several new algorithms that take advantage of modern graphics hardware to create novel views. Although ... -
Computational Differential Geometry Tools for Surface Interrogation, Fairing, and Design
(2006)This thesis presents a set of new mesh processing methods which are based on computational differential geometry techniques. The underlying idea of the methods consists of using proper discrete approximations of differential ... -
Path-line Oriented Visualization of Dynamical Flow Fields
(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 ... -
On Generalized Barycentric Coordinates and Their Applications in Geometric Modeling
(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 ... -
Reinforcement learning in a Multi-agent Framework for Pedestrian Simulation
(ProQuest, 2014-10-23)This thesis proposes a new approach to pedestrian simulation based on machine learning techniques. Specifically, the work proposes the use of reinforcement learning techniques to build a decision-making modulefor pedestrian ... -
Scheduling activities under spatial and temporal constraints to populate virtual urban environments
(Université Rennes 1, 2015-07-17)Crowd simulation models usually aim at producing visually credible crowds with the intent of giving life to virtual environments. Our work focusses on generating statistically consistent behaviours that can be used to pilot ...