Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 183 for “"level-of-detail"”.
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Automatic model abstraction for adaptive level of detail simulation
One of the main problems when dealing with simulations in a large environment is the amount of resources required to compute all of the events that are happening. Since it is too costly to simulate them all, the developer must consider ways to reduce the computation at the expense of the player …
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Zjednodušování polygonálních sítí a optimalizace vykreslování pomocí technik Level of Detail
Tato práce se zabývá optimalizačními technikami Level of Detail (LOD) pro dynamické řízení geometrické složitosti 3D scény. Za účelem generování jednotlivých úrovní detailu práce popisuje a implementuje vybrané algoritmy nebo metriky pro zjednodušování polygonálních sítí, konkrétně Vertex …
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A Novel Level-of-Detail Technique for Virtual City Environments: Design and Evaluation
… challenges to delivering such complex and detailed Mirror Worlds in real-time. In this work, we focus on runtime data structures and performance for Level-of-Detail (LOD) management and real-time portrayal. We begin with a VCE defined in existing semantic models such as the CityGML …
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Transparency, trust, and level of detail in user interface design for human autonomy teaming
… agents can improve productivity and reduce risks of human operators in safety-critical situations, with autonomous agents working as complementary teammates and lowering physical and mental demands by providing assistance and recommendations in complicated scenarios. Ineffective collaboration …
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A GPU-Based level of detail system for the real-time simulation and rendering of large-scale granular terrain
Real-time computer games and simulations often contain large virtual outdoor environments. Terrain forms an important part of these environments. This terrain may consist of various granular materials, such as sand, rubble and rocks. Previous approaches to rendering such terrains rely on simple …
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Comparison of the Biological Attributes, First and Second Level of Detail of Friction Ridge Skin of the Palms and Fingers
<p>Since the case of Daubert v. Merrell Dow Pharmaceuticals, the Daubert criteria is nothing new to forensic science. Today's practices and techniques presented in a court of law are held to high scientific scrutiny. For nearly 100 years, expert witness testimony concerning fingerprint …
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On the Simulation of an All Electric Ship Powertrain Utilizing a Surface Piercing Propeller Via a Modular Main Propulsion Plant Model
A modular simulation model of a marine powertrain consisting of a prime mover, propeller shaft, propulsor, and control system was developed, tested, and used to demonstrate the ability to analyze the marine powertrain numerically. The modularity of the model allows for the user to easily substitute …
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A framework for developing 4D LOD on construction projects
The increasing application of BIM processes and technologies has facilitated an increase in the use of 4D (3D+Time) simulations of construction projects. Numerous studies have acknowledged the benefit of 4D models in project planning and construction phases, enhancing communication between …
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The FEV Frontend: A Terrain and Water Simulation Client
… is a Java and OpenGL-based 3D vi- sualizer of flood simulation results in real-time. Simulations can be recomputed based on user-defined terrain edits made directly on the rendering surface. The frontend is the client software of the FEV system that includes a backend for solving water flow …
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Assessing the effects of new public transportation routes : an equity analysis on the changing accessibility of Albuquerque, New Mexico
This research details the application of a public transportation accessibility model using travel time as the accessibility measure. The primary objective was to develop a multi-modal network model for detecting change in travel time at the household level as the result of the implementation of new …
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Phonological and Semantic Processing of Chinese Characters
The results of the priming experiments demonstrated the important of controlling for a number of factors, including the semantic indices and phonological variables, and the relevance of these factors that had not been previously considered or adequately controlled for in previous reaction time …
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Quality control tools for interactive rendering of 3D triangle meshes
In this dissertation we explore methods of quality control of untextured polygonal models. The tools presented build, evaluate and improve on the field of multiresolution analysis through decimation. We evaluate the quality of models generated through various simplification algorithms to develop …
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Shapes and implementations in three-dimensional geometry
… form a finite point set in space, and it is often useful or required to compute what one might call the ""shape"" of the set. For that purpose, this thesis deals with the formal notion of the family of alpha shapes of a finite point set in three-dimensional space. Each shape is a well-defined …
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The Effects and Underlying Mechanisms of Sponsorship Disclosure in eWOM
Using a set of two experimental studies, this dissertation’s objectives were twofold. The first study examined the effects of sponsorship disclosure modes (written-only, spoken-only, and written-and-spoken disclosure) in sponsored online consumer product reviews on consumers’ attention to and …
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GIBSS: a framework for the multi-level simulation of manufacturing systems
… system design calls for the division of a system design into sub-designs, and their specification over multiple levels of detail. Through an iterative design and evaluation process, a system design progresses from an abstraction to an implemental specification. To facilitate the …
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A new finite-difference time-domain method applied to an open waveguide structure.
The study makes use of a variation of the Finite-Difference Time-Domain (FDTD) method as first proposed by Yee to simulate electromagnetic field distribution and propagation in an open waveguide structure. In order to prove that this new method is valid, a reflection coefficient is calculated with …
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Wavelet-Based Multiresolution Surface Approximation from Height Fields
A height field is a set of height distance values sampled at a finite set of sample points in a two-dimensional parameter domain. A height field usually contains a lot of redundant information, much of which can be removed without a substantial degradation of its quality. A common approach to …
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Effective methods for manipulating and rendering skinned meshes
… transforming every vertex using a weighted sum of proxy bone transformations in the skeleton. Arbitrary deformations such as facial and cloth animation can also be effectively represented with a relatively large number of proxy bones. However, the large number of necessary proxy bones make it …
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Dynamic line integral convolution for visualizing electromagnetic phenomena
… and engineering, giving us a powerful way of understanding the structure and evolution of the field. A fairly recent technique called Line Integral Convolution (LIC) has improved the level of detail that can be visualized by convolving a random input texture along the streamlines in the …
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The Jewel of the City
… a connection between a passion for the beauty of gemstones and craftsmanship of jewelry making to provide a metaphor for making beautiful architecture. The direction of the thesis made manifest connections and similarities between integrating art, craft and making beautiful jewel pieces and …
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