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 24 for “"human observer"”.
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Toward a Holistic Interdisciplinary Model of Human Being: a Hebraic-Christian Perspective of the Human Observer and its Beneficial Impact on the Theology-and-Science Dialogue, Society, and the Environment
… ground in a Hebraic-Christian concept of human being for building fruitful theology-and-science dialogue that is sensitive to the physical (natural sciences), moral (philosophy and social sciences), and spiritual (theology) attributes of human being.</p> <p>Method</p> <p>To aid me in the …
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Intelligent Vision System for the Detection of Protozoa on Microscope Slides
… between the results indicated by an expert human observer. Most texture measurements alone were not found to be useful. A heuristic method, was computationally more efficient and performed with an 80 percent accuracy. Using a neural network classifier, performance ranged from 50 to 100 …
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Optimization of Fast MR Imaging Technologies using the Case-PDM to Quantitatively Assess Image Quality
… We validated existing Case-PDM with advanced observer experiments. Human evaluation of MR images from multiple organs and from multiple image reconstruction algorithms were compared to Case-PDM and competing methods such as IDM (Sarnoff Corporation) and SSIM (Wang et al.). Global image quality …
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Modeling challenges of advanced thermal imagers
… to model the impact of insufficient sampling on human observer performance for the identification of military vehicles. An information comparison metric was proposed for the comparison of different spectral images. The impact of dead pixels and thermal imager noise on the comparison metric were …
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Perceptually Relevant Measurements in Tomosynthesis Imaging
… the image properties in relation to human perceptual mechanisms, we can find the optimal configurations to reduce misdiagnosis. The focus of this thesis is to characterize digital breast tomosynthesis (DBT) images using image quality metrics and eye gaze analysis and to explore how …
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Colour measurement and viewing conditions for non-paperbased substrates
… close to the colour perception of the average human observer. This colour management process is widely accepted in the printing industry and is effective for paper based substrates but there are significant limitations with some other substrates. The important group of non-paperbased …
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Constraint-Based Interpolation
… and constraints are also shown, as well as a human observer test. A variation of a previous interpolation technique, Quad-based Interpolation, and a new metric, gradient weighted contour curvature, is presented and analyzed.
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Modeling trust in human conversation
… whether its behavior looks reasonable to a human observer. In this work I show how a simple, natural model can closely approximate human behavior. without need for tweaking parameters.
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Anthropomorphic Model for Medical Image Quality Assessment
… of an anthropomorphic visual search model observer. The model incorporates a novel threshold mechanism inspired by human visual system principles, particularly emphasizing the selective processing of high-salience features. This mechanism aims to enhance discrimination performance by …
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Automated Quality Assurance for Magnetic Resonance Imaging with Extensions to Diffusion Tensor Imaging
… of a scanner. For the phantom assessment, a human observer performs manual tests on T1 and T2-weighted volumes of the provided phantom. As these tests are tedious and time consuming, the primary goal of this research was to fully automate the procedure for QA purposes. The performance of the …
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An automated multicolour fluorescence in situ hybridization workstation for the identification of clonally related cells
… to be comparable to clone delineation by a human-observer. Additionally, guidelines and procedures to perform anticipated, routine analysis experiments are established.
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Modelling of colour appearance of textured colours and smartphones using CIECAM02
… of view, which has the accuracy of an averaged observer. In this research, an attempt is made to extend this model to predict colours on mobile telephones, which is not covered in the model. Despite the limited size and capacity of a mobile telephone, the urge to apply it to meet quotidian needs …
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Machine Learning Methods for Brain Image Analysis
… yet with an accuracy close to manual human-level performance. These automated methods essentially need to generalize well to be able to accommodate data from different species. Also, novel approaches and techniques are becoming a necessity to reveal the correlations between different …
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Linking focus and context in three-dimensional multiscale environments
… computer graphics environment, such that a human observer can better comprehend it? Toward answering this question, a two-pronged approach is employed that consists of practice within computer user-interface design, and theory grounded in perceptual psychology, bound together by an approach …
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A new video quality metric for compressed video.
… most multimedia applications are meant for 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 …
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Visual urban sensing : understanding cities through computer vision
… quantifies how safe a street block looks to a human observer, using computer vision and crowdsourcing. We extend this work with an efficient convolutional neural network-based method that is capable of computing several perceptual attributes of the built environment from thousands of cities …
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Interpretable Knowledge Transfer in Communicative Neural-based Swarm-Guidance Agents
… agents is available in a form comprehensible to human teammates. It enhances a system's performance, reliability and trustworthiness. Transparency in human-autonomy teaming is a key success factor in the communication between humans and autonomous agents. This thesis focuses on the problem of …
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Improving the precision of leg ulcer area measurement with active contour models.
… leg ulcer is currently measured by presenting a human observer with a captured video image of a wound, who then uses a mouse or pointing device to delineate the wounded region. Typically, the standard deviation of area measurements taken this way is approximately 5% of the wound area.<br/><br/>In …
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Visuelle Erkennung von Handposituren für einen interaktiven Gebärdensprachtutor
… the user's sign production. Similar to a human teacher, the system offers corrective feedback in case of mistakes or deviations, thereby helping the learner perform the sign correctly. To support hand posture recognition the user wears colored cotton gloves that do not constrict hand …
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Towards Passing Visual Turing Test with Computational 3D Displays and Appearance Modeling
… describe a virtually persistent world in which humans, as avatars, interact with each other and software agents just as they would in the physical world. This is no longer science fiction with the rapid development of virtual and augmented reality devices in the past decade. To stimulate future …
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