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 “"CCD camera."”.
-
Portal Imaging Using a CSI (TL) Scintillator Coupled to a Cooled CCD Camera
… x-ray scintillator coupled to a cooled CCD camera. Theoretical <br />analysis using Monte Carlo simulation was performed to calculate the QDE, SNR and DQE of <br />the system. A prototype electronic portal imaging device (EPID) was built, using a 12.7 mm <br />thick, 20.32 cm diameter, …
-
REGULARIZATION METHODS FOR ILL-POSED POISSON IMAGING
… in images collected by a charge coupled device (CCD) camera is predominantly of Poisson type. This motivates the use of the negative logarithm of the Poisson likelihood in place of the ubiquitous least squares t-to-data. However, if the underlying mathematical model is assumed to have the form z …
-
REGULARIZATION METHODS FOR ILL-POSED POISSON IMAGING
… in images collected by a charge coupled device (CCD) camera is predominantly of Poisson type. This motivates the use of the negative logarithm of the Poisson likelihood in place of the ubiquitous least squares t-to-data. However, if the underlying mathematical model is assumed to have the form z …
-
Digital Holographic Micro-Interferometery for the Measurement of the Refractive Index of Biological Cells
… the reference and object beams was recorded by a CCD camera. The recording process followed a special procedure called decoupling procedure [1]. Three digital holograms with different interference patterns were recorded by varying the refractive index of the cell medium. In order to measure the …
-
Meso-scale fluidic devices with chemical sensors for biological applications
… using color charge-coupled device (CCD) camera as a photodetector and LED panel as an excitation source. Meso-scale fluidic devices with integrated oxygen and humidity sensors for potential applications to hydrotropic and oxytropic studies of small plant roots have been investigated …
-
Investigations of Chemiluminescence Detection Parameters for Kinetic Analysis and Capillary Separations
… by applying hydrogen peroxide, a scientific CCD camera imaged the resultant CL emission, and an electropherogram was reconstructed. This post-column detection scheme decouples the separation parameters from detection and allows longer lived CL reagents to be used with fast separations.
-
Video metrology for documentation of engineering construction
… developed to calibrate the interior geometry of CCD cameras. The method employs a flat brick wall as a control field. A brick wall is an excellent control field, because it provides a large number of well-defined points at almost any focal setting. When compared with laboratory calibration, which …
-
Dynamic light scattering and diffusing wave spectroscopy studies of the microscopic dynamics of polystyrene latex spheres suspened in glycerol
… scattering regime using a charge coupled device [CCD] camera as our detector. Our experiments, which investigated suspensions of various concentrations [0.001</=0</=0.075], extended over length scales ranging from q = 0.00015 A to q = 0.00071 A and spanned three orders of magnitude in the time …
-
Automated Visual Inspection of Lace Using Machine Vision
The development of the modem CCD camera coupled with the vast increase in computational speed of the latest PC’s is making simple mundane visual inspection tasks increasingly cost effective. This thesis investigates the feasibility of applying machine vision to automate the inspection of lace on …
-
Examination of a system for the mechanistic study of tumor cell-platelet interactions under well-defined flow conditions
… video microscopy utilizing a cooled CCD camera and digital image processing were used to quantify the dynamic adhesion and aggregation of platelets. Varying the exposure time of the monolayer to the 445 nm excitation wavelength revealed that photoactivation was stimulating the tumor …
-
Development of a display screen correlation metric for thermal imaging cameras
Thermal imaging cameras detect infrared radiation to semi-quantitatively determine the thermal profile of the surroundings. Previously, no standard performance measurements have been established for thermal imaging cameras applications such as search and rescue and firefighting. The spatial …
-
Detecting the invisible universe with neutrinos and dark matter
… detection--a drift chamber readout using a CCD camera. The backgrounds of this detector are investigated and enumerated, and a dark matter search sets a limit at mX =100 GeV of 3.7 x 10?³³ cm².
-
Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models
… properties of building materials, using a CCD camera to produce a luminance map of the emerging light distribution. The heliodon mode will be used to as an educational tool to perform qualitative evaluations of shadow patterns by simulating sunlight illumination on scale models. This thesis …
-
A real-time optical measurement system
… target on a linear-array charge-coupled device (CCD) camera are performed. The running maximum algorithm provides the best accuracy and speed and therefore is recommended. A real-time architecture to implement the running maximum algorithm is developed. The architecture allows the optical system …
-
157nm F₂laser characterization and application to polymer ablation
… technique using Lumilass G9 glass plate and a CCD camera was applied in this work to analyze the VUV laser beam. This required knowledge of using optical systems, a CCD camera, and capturing and analyzing bmp images for analysis in MathCAD. Measurements made in this way permit divergence to be …
-
The role of nanostructured targets in Laser-Produced Plasmas for Nuclear Astrophysics studies
… Plasma (LPP). In particular, an Intensified CCD camera in visible domain has been a useful diagnostic tools to understand the expansion dynamics of laser created plumes, by providing a two-dimensional snap shots of the three-dimensional LPP propagation. Depending upon the target material, the …
-
Magellan Instant Camera testbed
The Magellan Instant Camera (MagIC) is an optical CCD camera that was built at MIT and is currently used at Las Campanas Observatory (LCO) in La Serena, Chile. It is designed to be both simple and efficient with minimal optics between the telescope port and the detector, a high quantum efficiency …
-
Design and optimization of three-dimensional scanning laser range finder
… system. Using a Charged Coupled Device (CCD) camera to view a robotic work area a user can select an object on a monitor. A LASER is used to project a beam into the work area and the camera in conjunction with image processing software and hardware is used to locate the LASER spot. The …
-
Ageing Assessment of Power Transformer Kraft Paper Insulation Using Optical Speckle
… a laser diode source have been captured by a CCD camera. Classification based on textural features shows very good discrimination between ageing classes making this technique promising for industrial applications.
-
3-D body mapping with computer vision
… automatic manner. The system consisted of nine CCD cameras arranged in three stereo triples, a 486-based personal computer equipped with two frame grabbers, and three slide projectors for projecting dot patterns on the body. A movable control field was developed for CCD camera calibration on …
Page 1 of 4