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 118 for “"lighting conditions"”.
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Optimizing Lighting Conditions for Nighttime Highway Construction Operations
… CONVISUAL"" is developed to establish objective lighting design criteria for nighttime highway construction in order to minimize the subjectivity and discrepancy in available lighting standards adopted by different DOTs. The framework can be utilized by state DOTs as performance-based criteria …
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Capturing videos of trains under ambient lighting conditions for computer vision analysis
… sensors, personal computers, and camera and lighting towers. After the video data is collected, it is analyzed using the Train Monitoring System (TMS) and Train Scor- ing System (TSS) algorithms. Finally, each car in the train is given an aerodynamic score. Currently, the system is functional …
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A True Random Number Generator Algorithm Using Digital Camera Image Noises Under Varying Lighting Conditions
We present a True Random Number Generator (TRNG) using the images taken by web or mobile phone cameras.
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IR-Depth Face Detection and Lip Localization Using Kinect V2
… and lip localization were conducted in uniform lighting conditions with simple backgrounds. However, such conditions are seldom the case in real world applications. In this paper, we present an approach to face recognition and lip localization that is invariant to lighting conditions. This is …
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Human Mesh Recovery Using Radio Signals
… presence of occlusions, baggy clothes, and bad lighting conditions. We leverage that radio frequency (RF) signals in the WiFi range traverse clothes and occlusions and bounce off the human body. Our model parses such radio signals and recovers 3D body meshes. Our meshes are dynamic and smoothly …
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Processional and Threshold; A Sacred Space for Downtown Blacksburg
… an investigation of architectural elements and lighting conditions that reinforce a journey. From the initial encounter to the presence of the sanctuary, a Presbyterian church has been constructed in downtown Blacksburg to instrumentally govern an interaction between congregation and form.
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Effects of Auditory Stimulation in Low and High Light Conditions on Behavioral and State Organization in Preterm Infants
… once a day) and when provided in different lighting conditions ("typical illumination" versus "decreased illumination"). Forty infants were placed in one of four groups: Standard Illumination/High Voice (SIHV), Standard Illumination /Low Voice (SILV), Decreased Illumination/High Voice (DIHV) …
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Integrating Natural Light for Wellbeing, Performance, and Quality Care Delivery in Healthcare Environments
… This research aims to bridge this gap by highlighting the influence of the lighting conditions on personnel well-being, and their subjective performance within healthcare environments. Conducted over a six-month period within a healthcare facility in Abuja, Nigeria, this study employs a mixed …
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Illuminating education : composition and use of lighting in public K-12 classrooms
… classroom settings. Through the measurement of lighting conditions and an examination of occupant behavior under both electric and natural lighting systems in K- 12 schools of Southern California, this research aims to bridge gaps between knowledge of light's impact on the human body and results …
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Improved robustness and efficiency for automatic visual site monitoring
… to compute and robust to issues such as adverse lighting conditions, distracting background motions, appearance changes over time, and occlusions. In this thesis, we present a set of techniques and model enhancements to better handle these problems, focusing on contributions in four areas. First, …
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Illumination Level as an Influence Factor on Proxemic Behavior
… influence of the effect of bright or dim lighting conditions on the personal space requirements within the behavioral setting of waiting/reception areas. Both a quantitative approach and qualitative approach were taken with this investigation. To control for various cultural, social, …
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Unconstrained Road Sign Recognition
… sign recognition systems work well under ideal conditions, but experience problems when the lighting conditions are poor or the signs are partially occluded. The aim of this research is to propose techniques to recognize road signs in a real outdoor environment, especially to deal with poor …
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Relative Pose Uncertainty Quantification Using Lie Group Variational Filtering
… proven to be a difficult task. Due to adverse lighting conditions, high-noise images are common and degrade the performance of traditional feature-based estimation and perception algorithms. This work explores the applications of a variational filtering scheme founded in Lie Group theory to an …
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Sensetable : a wireless object tracking platform for tangible user interfaces
… susceptibility to occlusion or changes in lighting conditions. Second, the tracked objects have state that can be modified by attaching physical dials and modifiers. The system can detect these changes in real-time. I present several new interaction techniques developed in the context of …
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Heliocentric architecture : materializing solar cadences
… similarly long-established approach to daylighting optimizes lighting conditions through the use of computational tools which provide precise numerical and geometric models of solar rhythms. This thesis applies the quantitative control of computational methods to the creation of …
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A model generalization study in localizing indoor cows with cow localization (colo) dataset
… data for Jersey and Holstein cows under various lighting conditions and camera angles. We evaluate the performance and generalization capabilities of YOLOv8 and YOLOv9 model variants using this dataset. Our analysis assesses model robustness across different lighting and viewpoint configurations …
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Robust audio-visual person verification using Web-camera video
… recorded in multiple environments with various lighting conditions, irregular visual backgrounds, and diverse background noise. Audio-visual person verification could prove to be very useful in both physical and logical access control security applications, but only if it can perform well in a …
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Drawing driver's attention to potentially dangerous objects
… potentially dangerous objects due to weather or lighting conditions or when their field of view is restricted. This thesis presents a display method for potentially dangerous objects to assist drivers in noticing dangerous situations. The object segment is denoised by adaptive thresholding, and …
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Fluid Flow Characterization in Rapid Prototyped Common Iliac Artery Aneurysm Molds
… protocol; low frame rate, poor control over lighting conditions, and the subjectivity involved in image processing. Methods of improving upon the manufacturing and experimental protocols used for the half-vessel are proposed for future work, such as improving control over lighting conditions, …
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Objective Image Quality of CRT Displays under Ambient Glare: Assessing the ISO 9241-7 Ergonomic Technical Standard
… readability of CRT displays viewed under ambient lighting conditions and then evaluated the findings with respect to the ISO 9241-7 standard. More specifically, two phases of work were conducted in this thesis. In Phase 1, seven monitors were evaluated photometrically according to the ISO 9241-7 …
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