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 61 for “"Infrared Camera"”.
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Active Thermography Using Cellphone Attachment Infrared Camera
… high cost (usually $10k-$100k) and large size of infrared cameras. In order to overcome these limitations, in this thesis, we aim to demonstrate feasibility of performing AT with cell-phone attachment infrared cameras with cost of -$250 and size significantly less than the research-grade infrared …
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Handheld infrared camera use for suicide bomb detection: feasibility of use for thermal model comparison
… as a tool for detecting hidden weapons is an infrared detector. Infrared detectors are passive sensors that create infrared, or thermal, images without having to expose the subject to any radiation. These images show the heat signature that is given off by objects of interest. Previous studies …
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Assessment of an infrared camera for use as a control sensor for the chemical mechanical planarization process
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.
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Surveyance of the marine environment for beached plastic debris using a novel, hyperspectral shortwave infrared camera on an uncrewed aerial vehicle (UAV)
… implemented inexpensive<br/>and common digital cameras that operate in the visible light spectrum. This approach is<br/>often limited in capability/reliability by inherent ambiguity, resulting from two-dimensional<br/>imagery of materials of unverifiable chemical composition. This thesis …
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A wear test of men's polypropylene indoor exercise prototypes with heat and moisture measurements: an experimentation with infrared thermography
… in a partially nude condition. The usefulness of infrared thermography as instrumentation for observation of surface temperature during a wear test was also investigated. Based on Univariate Analysis of Variance with Repeated Measures, one prototype was shown to react in a more similar manner to …
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Temperature measurement and thermal control of die casting processes using CCD cameras
… using low-cost, charge-coupled device (CCD) cameras. Factors present in an industrial setting that affect non-contact temperature measurement are identified, and a system is developed to overcome these factors. A temperature control system for the die casting process is also developed to …
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Fixed pattern noise compensation in a mercury cadmium telluride infrared focal plane array
… noise artifacts in a mercury cadmium telluride infrared camera system. The spatial noise artifacts are a result of nonuniformities within the infrared focal plane detector array. The techniques presented dispense with the need for traditional temperature references, and provide nonuniformity …
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Thermographic detection of damaged regions in fiber-reinforced composite materials
… shaker while the specimen is monitored with an infrared camera. Once temperature patterns are developed, thermograms are photographed from the color display of the infrared camera. A three dimensional, orthotropic, finite difference heat conduction analysis is performed and written into a …
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Parameterizing the Dust Around Herbig Ae/Be Stars: Multiwavelength Imaging, Radiative Transfer Modeling, and Near-Infrared Instrumentation
… in the development of the WIYN High Resolution Infrared Camera. The instrument operates in the near-infrared (∼0.8 -- 2.5 mum), includes 13 filters, and has a pixel size of ∼0.1&inches;, resulting in a field of view of ∼3' x 3'. An angular resolution of ∼0.25&inches; is …
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SeaVipers - Computer Vision and Inertial Position Reference Sensor System (CVIPRSS)
… \nickname), combines a laser rangefinder, infrared camera, and a pan--tilt unit with the robust TLD (Tracking--Learning--Detection) object tracker. In this work, a \nickname ~prototype is evaluated, showing promising results as viable PRS with research, commercial, and industrial …
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Development of MiST-IR : multi-spectral infrared thermography
… phenomena. The technique, called Multi-Spectral Infrared Thermography or MiST, builds on previous diagnostic techniques for measuring the 2-D wall temperature distribution or the 2-D phase distribution of the fluid above the surface. These methods make use of infrared thermography, a well …
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Surface Velocity Measurements at the Aeolotron by Means of Active Thermography
… heat patterns, which were visualized by an infrared camera. In contrast to other methods, this approach is a non-invasive method and does not disturb the surface properties. Several algorithms are explored on synthetic sequences as well as on data taken at the Aeolotron to determine reliably …
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Infrared Thermography And High Accuracy Gps For Automated Asphalt Crack Detection
… of the most important recent technologies is the infrared thermography, which allows the use of infrared waves for crack detection. Another important technology is the global navigation satellite system (GNSS) which currently includes the GPS and GLONASS constellations. With the help of these …
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Forced Convection in Microchannels with Nanostructures on One Wall
… widely spaced nanotubes. The tests utilize an infrared camera as well as thermocouples placed in the flow for characterization. The heat transfer characteristics are compared for the different cases.
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Studying the Performance of Object Recognition with Fusion of Visible Light and Infrared Images with Neural Networks
… and recognition in both color and intensity camera images. As the use of infrared cameras, colloquially termed thermal cameras, has increased and costs have decreased, object detection and recognition in infrared camera images have been increasingly studied. An infrared image is treated as an …
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A Study Of Intermittent Convective Heating Effects On Fine Fuel Ignition
… temperature of these fuels is measured using an infrared camera, distinguishing the temperature at which the fuel starts to pyrolyze. As expected, smaller-diameter fuels ignite faster when exposed to flames; however, they also are least affected by intermittent heating. Larger-diameter fuels are …
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Device for selecting lightwave ranges via computer control for studying building material properties via goniophotometer
… device for selecting specific visible and near-infrared light wavelengths related to the red, green, and blue sensitivity peaks of a visible detection camera and the pixel response for a near-infrared camera. This filter device functions in conjunction with the Department of Architecture's …
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Development of an experimental technique to investigate droplet cooling phenomena on accident tolerant fuel materials
… temperature was measured with a high speed infrared camera while a video camera observed the droplet shape and behavior during boiling. While the rough and smooth surfaces performed similarly at temperatures below 200°C, the data indicates that at higher temperatures the smooth surface …
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Environment Mapping in Larger Spaces
… commercial spatial mapping devices mostly use infrared camera to obtain a depth map which is effective only for short to medium distances (3-4 meters). This work describes an extension to the existing environment mapping devices and techniques to enable mapping of larger architectural …
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