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.
Results
Showing 1 to 20 of 72 for “"Visual quality"”.
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D.C. beautification / Visual quality
Thesis. 1974. M.Arch.A.S.--Massachusetts Institute of Technology. Dept. of Architecture.
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Visual Quality Integerated Cost Model For Developing Green Neighborhoods: An Optimization Approach
… of neighborhood developments is the visual quality. This is determined mainly by the maximizing the access to favorable views and minimizing the visual impact values. Furthermore, improving the visual quality will have a direct impact on the profitability of any neighborhood …
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Reliability and validity of an expert system for landscape visual quality assessment
… previously developed expert system for landscape visual quality assessment was evaluated for reliability and validity against four professional landscape architects, one of whom’s rules upon which the system was based, and two lay subjects. Results indicated that the system has good initial …
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Developing effective virtual simulations and serious games: the effect of background sound cues on visual quality perception
… open, fundamental issues regarding simulation quality, multi-modal cue interaction, and the resulting effect on visual quality perception and ultimately on knowledge transfer and retention. Here the results of a series of seven studies that examined the effect of background sound (contextually …
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A new video quality metric for compressed video.
… the human observer, measuring perceived video quality during the designing and testing of these applications is important. Performance of existing perceptual video quality measurement techniques is limited due to poor correlation with subjective quality and implementation complexity. Therefore, …
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Front Rendering on the GPU
… screen. When this one-to-one mapping is removed, visual quality can degrade dramatically. This thesis describes a method to avoid this degradation by moving the rendering of glyphs from the CPU to the Graphics Processing Unit (GPU). This method extracts glyph metrics from Truetype font files using …
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Artificial intelligence based visual assessment: an explanation system for landscape aesthetic
… system was developed to evaluate landscape quality from the perspective of a landscape designer/architect. The rationale for the development of such a system is that it can provide explanations for final assessments and retain this information during the reasoning process. The system also …
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Anti-Freeze: High-Quality Adaptive Live Streaming with Real-time Transcoder
… in unwanted delays, which further limit the Quality-of-Service (QoS) delivered by the streaming protocol. In this thesis, we aim to address the real-time challenge and propose Antifreeze, a complete end-to-end solution for real-time transcoding and streaming. We propose a machine-learning …
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An investigation of neural networks for image processing applications
… in terms of mean square error performance and visual quality of the coded images. Two variations of the HNNBTC technique are also presented which are shown to provide increased compression ratios without sacrificing much of the visual quality of the coded images. The application of …
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Computational Complexity Optimization on H.264 Scalable/Multiview Video Coding
… method. Although the H.264 standard improves the visual quality at low bitrates, it enormously increases the computational complexity. The research described in this thesis focuses on optimization of the computational complexity on H.264 scalable and multiview video coding. Nowadays, video …
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Evaluation of the potential impact of electrochromic windows on the energy performance of commercial buildings
… a potentially significant impact on the indoor visual environment and energy requirements of commercial buildings. The research work presented in this thesis, which is accomplished using computer simulation, proposes to undertake an engineering evaluation of the performance of electrochromic …
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Analysis of Contrast Enhancement Methods for Infrared Images
… techniques are used widely to improve the visual quality of images. The difference in luminance reflected from two adjacent surfaces creates contrast between the surfaces in the image. The greater the contrast, the easier it is to recognize and differentiate objects in an image. Thus object …
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INVESTIGATIONS OF DNA DAMAGE AND REPAIR IN THE HUMAN LENS
… H2O2 induced significant decreases in loss of visual quality and cataract in whole human lenses; these changes corresponded to increased cell death. Depletion of Ku80 rendered FHL124 cells more susceptible to H2O2-induced DNA strand breaks and whole human lenses to significant decreases in …
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Perceptual refinement for hierarchical radiosity
… explores the use of a simple model of the human visual system to yield a performance improvement with hierarchical radiosity. Hierarchical radiosity is a physically based rendering algorithm and hence makes no attempt to optimize computation for human perception. We used a model of the edge …
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Redesigning Main Street in post-industrial communities: The case of Galesburg, Illinois
… bicycle lanes or plantings could improve the visual quality, livability, and safety of urban streets. But to what extent would citizens approve of such changes? Would they welcome change or prefer to keep Main Street as it is? This thesis used a photo-questionnaire to examine the extent to …
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A Study of Perceptually Tuned, Wavelet Based, Rate Scalable, Image and Video Compression
… Contrast Sensitivity Function (CSF) for Human Visual System (HVS) and extends this scheme to handle optimal bit allocation among multiple bands, such as Y, Cb, and Cr. Our experimental image codec shows very exciting results in compression performance and visual quality comparing to the new …
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Synchronous Data Sharing Using Augmented Reality Enabled Handheld Devices
… has become an increasingly preferred method for visualizing multi-dimensional data. With recent advancements in smartphones and tablets, their potential as alternatives to traditional AR headsets, also known as head-mounted displays (HMDs), has emerged and requires evaluation. AR-enabled handheld …
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User-appropriate viewer for high resolution interactive engagement with 3D digital cultural artefacts.
… The novel nature of 3D datasets and their visualisation presenting unique issues that impede use and dissemination. Key questions include the legal issues associated with 3D datasets created from cultural artefacts; the complex needs of users who are interacting with them; a lack of …
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Multilevel multidimensional scaling on the GPU
We present Glimmer, a new multilevel visualization algorithm for multidimensional scaling designed to exploit modern graphics processing unit (GPU) hard-ware. We also present GPU-SF, a parallel, force-based subsystem used by Glimmer. Glimmer organizes input into a hierarchy of levels and …
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Quality-Centric Single-Image Procedural Material Generation
… intuitive and precise editing to achieve desired visual appearances. However, even for experienced artists, creating a procedural material given an input image requires professional knowledge and significant effort. Current inverse procedural material modeling approaches enable the automatic …
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