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 1357 for “"visibility"”.
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Distributed visibility servers
… describes techniques for computing conservative visibility exploiting viewpoint prediction, spatial coherence and remote visibility servers to increase the rendering performance of a walk through client. Identifying visible (or partially visible) geometry from an instantaneous viewpoint of a 3-D …
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Visibility properties of polygons
Two problems dealing with visibility in the interior of a polygon are investigated. We present a linear time algorithm for computing the stair-case visibility polygon from a point inside a simple polygon, which is optimal within a constant factor. We show that the problem of locating the minimum …
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Visibility-Aware Motion Planning
… formal definition of the problem, which we call Visibility-Aware Motion Planning (VAMP), and several solution methods with different computational trade-offs. We demonstrate the behavior of these planning algorithms in illustrative planar domains. The key to an efficient solution is to …
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Visibility computation through image generalization
… the image generalization paradigm for computing visibility. The paradigm is based on the observation that an image is a powerful tool for computing visibility. An image can be rendered efficiently with the support of graphics hardware and each of the millions of pixels in the image reports a …
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Fast and accurate visibility preprocessing
Currently, the standard approach to visibility preprocessing algorithms is to use a form of approximate solution, known as conservative culling. Such algorithms over-estimate the set of visible polygons. This compromise has been considered necessary in order to perform visibility preprocessing …
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Perfecting visibility with retailer data
This thesis investigates the utility of using retailer point of sales (POS) data in the production planning process of a consumer-packaged goods (CPG) manufacturing company. The quantitative measurements of utility include the improvement of production forecasting, reduction of inventory costs, and …
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Understanding and Evaluating User Interface Visibility
… One of the key issues raised is the lack of visibility of user interface elements, which is deemed to be a critical component of an effective UI. An initial investigation highlighted that UI visibility can be broken down into three key aspects: Firstly; some user interface elements are …
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Visibility analysis of landmark-based navigation
… the chromatic art gallery problem in which the visibility graph of the landmarks is required to be connected. The chromatic art gallery problem can be phrased in terms of a landmark placement problem combined with a graph coloring problem. The landmarks are placed such that each point in the …
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Visibility-Aware Navigation Among Movable Obstacles
We examine the problem of visibility-aware robot navigation among movable obstacles (VANAMO). A variant of the well-known NAMO robotic planning problem, VANAMO puts additional visibility constraints on robot motion and object movability. This new problem formulation lifts the restrictive assumption …
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Research on Print Defect Visibility and Evaluation
… we propose a Masking Mediated Print Defect Visibility Predictor (MMPDVP) to predict the visibility of defects in the presence of customer content. The parameters of the algorithm are trained from ground-truth images that have been marked by subjects. The MMPDVP could help the press operator …
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Visibility-Related Problems on Parallel Computational Models
<p>Visibility-related problems find applications in seemingly unrelated and diverse fields such as computer graphics, scene analysis, robotics and VLSI design. While there are common threads running through these problems, most existing solutions do not exploit these commonalities. With this in …
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Pilot performance in zero-visibility precision approach
Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.
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Improving inbound visibility through shipment arrival modeling
Amazon's desire to provide the "Earth's largest selection" comes at a tremendous cost. In addition to managing the orders for thousands of vendors/suppliers and millions of Stock Keeping Units (SKUs), Amazon must keep track of all the inbound shipments in order to manage its inventory efficiently. …
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GIS and Satellite Visibility: Viewsheds from Space
… availability prediction tools perform satellite visibility predictions without considering terrain or structures that block GPS signals, a major issue in mountainous and urban areas. This paper describes a new Geographic Information Systems (GIS) tool, a customization of ArcGIS named Satellite …
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MAD GIRL'S LOVE SONG: Visibility Through Theatre Creation
… challenge theatre practices that impede bisexual visibility. MAD GIRLS LOVE SONG, a one-woman theatrical event, has arisen in response and relationship to the research, borrowing structures from other art forms, such as modernist poetry. By prioritizing the organization of theatrical time over …
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Visibility-Based Pursuit-Evasion with Probabilistic Evader Models
<p>We propose an algorithm for a visibility-based pursuit-evasion problem in a simply-connected two-dimensional environment, in which a single pursuer has access to a probabilistic model describing how the evaders are likely to move in the environment. The application of our algorithm can be best …
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(In)visibility and missing persons: Desperately seeking certainty
This thesis is an exploration of (in)visibility and missing persons, specifically the impact of the police response to reports of missing persons and subsequent investigations into the disappearance of people. The literature review builds on a review of harm and missing persons in which …
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Visibility degradation and meteorology in the Boulder Valley
Includes bibliographical references.
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