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 31 for “"visual detection"”.
-
Visual detection and recognition using local features
Detection and recognition of objects in images is one of the most impor- tant problems in computer vision. In this thesis we adhere to a traditional bottom–up detection and recognition framework, where the objects are first localized with a sliding window detector before being identified. We make …
-
Visual Detection of Small Unmanned Aircraft: Modeling the Limits of Human Pilots
… was to determine the key physical variables for visual detection of small, Unmanned Aircraft Systems (UAS), and to learn how these variables influence the ability of human pilots, in manned-aircraft operating between 60-knots to 160-knots in the airport terminal area, to see these small, unmanned …
-
Feasibility of Neural Networks for Maritime Visual Detection on a Mobile Platform
<p>Object detection through computer vision has traditionally been difficult to reliably implement due to various lighting conditions caused by weather and time of day. Any changes in conditions can be detrimental to the detector’s ability to accurately identify objects. A modern approach …
-
Visual Detection as a Function of Attentional Demand and Perceptual System Error
Made available in DSpace on 2014-12-08T23:01:45Z (GMT). No. of bitstreams: 1 6812140.pdf: 1821558 bytes, checksum: 9b63da43381b686287822cea636ab372 (MD5) Previous issue date: 1968
-
THE STUDY OF PYRENEDIONE AS A PHOTOREDOX CATALYST AND A FLUOROMETRIC PROBE FOR VISUAL DETECTION AND QUANTIFICATION OF TRYPTOPHAN
… presented. An easy and sensitive method for the visual detection and quantification of tryptophan in soy sauce has been developed using 1,8-PYD as a turn-on fluorescent probe.
-
The good, the bad, the complex: Investigating the behavioural consequences of EEG alpha oscillations in visual detection and selective attention
… surprisingly, our ability to perceive identical visual stimuli varies considerably. Understanding why we sometimes miss a stimulus that we could easily see just a moment ago promises exciting insights into how we perceive and interact with the world. This variability has to depend at least to …
-
Use of High Pressure Liquid Chromatography to Detect and Quantify Oxytetracycline Marks in Walleye Otoliths and Dorsal Spines
… vitreum fry and fingerlings. Current visual methods for detection of these marks are subjective, and biologists are unable to quantify the amount of OTC in a sample. The goal of this study was to determine if high pressure liquid chromatography (HPLC) is a feasible and superior …
-
Smart object, not smart environment : cooperative augmentation of smart objects using projector-camera systems
… Augmentation enables the knowledge required for visual detection, tracking and projection on smart objects to be embedded within the object itself. This allows projector-camera systems to provide generic display services, enabling spontaneous use by any smart object to achieve non-invasive and …
-
Joint Face Detection and Tracking in Three-Dimensional Space
Visual detection and tracking of faces in complex scenes is a very interesting and challenging problem. In general, real human-computer interaction scenarios present significant challenges to most face detection and tracking algorithms, for example, partially occluded and low-resolution faces, as …
-
Graphical models for visual object recognition and tracking
… statistical methods which allow effective visual detection, categorization, and tracking of objects in complex scenes. Such computer vision systems must be robust to wide variations in object appearance, the often small size of training databases, and ambiguities induced by articulated or …
-
A Study in Object Detection and Classification Performance by Sensing Modality for Autonomous Surface Vessels
… performance comparison between light detection and ranging (LiDAR) and vision-based sensing for real-time maritime object detection on autonomous surface vessels. Using Embry-Riddle Aeronautical University’s (ERAU) Minion platform and 2024 Maritime RobotX Challenge data, this study …
-
Effects of target size, luminance contrast, and illumination on visual target detection and recognition with AN/AVS-6 goggles
… luminance contrast, and illumination level on visual target detection and recognition while using AN/AVS-6 night vision goggles. Vehicle silhouette targets were rear-projected on random screen positions under various levels of illumination, contrast, and size. The observer's task was to detect …
-
Collaborative UAV path planning with deceptive strategies
… intended route while operating within aural and visual detection range of threat forces. The advent of Small UAVSs (SUAVs) has fundamentally changed the interaction between the observer and the observed. SUAVs fly at much lower altitudes than their predecessors, and the threat can detect the …
-
Fixed-wing Classification through Visually Perceived Motion Extraction with Time Frequency Analysis
… awareness. Monitoring solutions such as drone detection, tracking, and classification become increasingly important to maintain compliance for regulatory and security purposes, as well as for recognizing aircraft that may not be so. Vision systems offer significant size, weight, power, and cost …
-
Mammography machine compression paddle movement andobserver performance analysis
… It investigates whether blurring can be detected visually on technical review monitors and reporting grade monitors.The thesis presents a method to minimise paddle motion during X-ray exposure. Six papers have been published. Two of these (papers 1 and 2) investigated paddle displacement using …
-
A Descriptive Survey of Freshwater Unionidae Bivalves in Five Creeks Located in West Central Georgia
… use of a small rake in sandy or silty substrate, visual detection of siphons or trails in the soft sediment, manual probing in rocky substrates, and collection of shells from dead individuals on sand bars and overwash areas. Results from this survey were 494 specimens collected between August …
-
Detection of defects in FRP-reinforced concrete with the acoustic-laser vibrometry method
… delamination, FRP obscures the defect such that visual detection may not be possible. Most currently available non-destructive testing (NDT) methods rely on physical contact; an NDT method that is capable of remotely assessing damage would be greatly advantageous. A novel approach called the …
-
The Identification of Composite Resin Restorations within Natural Teeth
… aesthetic properties. Unfortunately this makes visual detection more difficult. Restorations form a unique feature of an individual dentition. Therefore it is important to identify composite in conservative dentistry to avoid charting errors and reduce cavity enlargement during restoration …
-
Hyperspectral and Thermal Remote Sensing of Plant Stress Reponses to Oil Pollution.
… and thermal remote sensing for the early pre-visual detection and quantification of plant stress caused by oil pollution. Further, it examines the potential for these techniques to discriminate between oil pollution and two typically encountered plant stresses of waterlogging and water …
-
Effects of Organic and Conventional Agricultural Practices on Soil Microbial Communities and Molecular Detection of Soil Borne Disease
… environment that individual farms create. Early detection of soil borne disease is essential for agricultural success. However, monitoring incidence of disease based on plant growth response to pathogenic inoculation may not reveal the amount of pathogenic DNA in soil. A comparative study of …
Page 1 of 2