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 31 for “"line detection"”.
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Line Detection and Lane Following for an Autonomous Mobile Robot
… is bounded by solid and broken white and yellow lines. Along the course, the vehicle encounters obstacles, painted potholes, a ramp and a sand pit. The success of the robot is usually determined by the software controlling it. Johnny-5 was one of three vehicles entered in the 2004 competition by …
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Vision systems for a mobile robot based on line detection using the Hough Transform and artificial neural networks.
… of mobile robot self-navigation within a rectilinear framework based on visual data. It proposes a number of vision systems based on detection of straight lines in images captured by a robot using the Hough transform and artificial neural networks as core algorithms. The Hough transform is a …
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Road detection on radar imagery
A facet based road network detection procedure is described for radar imagery. The procedure includes a line detection part and a road detection and connection part. The line detection part analytically detects linear features using a facet Valley finding technique. Valleys are defined as zero …
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Nanoliter -Volume NMR for Mass -Limited Analyses and Capillary Separations
… microcoil probes for both static analysis and on-line detection of capillary separations, mass-limited samples in complex matrices are becoming viable samples for characterization by NMR. With emerging advances in hardware, the boundaries for applications that require high NMR detection …
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Development of a vision-based local positioning system for weed detection
… a vision-based local positioning system for weed detection has been developed and tested in a laboratory setting. Four Line-detection algorithms have been tested and a robotic positioning device, or XYZtheta-table, was developed and tested. The Line-detection algorithms were based respectively on …
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The analysis and synthesis of efficient algorithm-based error detection schemes for hypercube multiprocessors
… a different perspective: the provision of on-line detection of hardware errors using software techniques without any hardware modifications. This approach is called Algorithm-based error detection. We report on the implementation of system-level error detection mechanisms for four parallel …
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Optimising light-sheet microscopy for high resolution live imaging of the early development of chick embryos
… camera operation included the use of confocal line detection, which greatly reduced background signals and increased image contrast. This improvement allowed the detection of membranous vesicles at the apical side of the epiblast in the space between the embryo and the vitelline membrane. These …
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Design and development of an autonomous mobile robot for parking lot mapping
… Patrol Robot (SPR). The proposed perception pipeline uses semantic segmentation, inverse perspective mapping, probabilistic line detection, and pose-based line clustering to approximate metric-scaled line marking representations. An incremental mapping algorithm uses robot localization to merge …
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IDENTIFICATION AND QUANTIFICATION OF IONIC POLLUTANTS IN ENVIRONMENTAL WATER
… fluorescent sensor was demonstrated for the detection of a cationic pollutant, namely Hg2+, with tunable detection range. This sensor can easily detect Hg2+ in the presence of other metal ions. It is potentially useful for on-site detection in environmental applications involving different …
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Fast power network detection of topology change locations using PMU measurements
… be continuously updated for the purpose of on-line analysis. Several topology processing schemes have been developed in the literature to accomplish this task. The majority of these schemes process breaker statuses to detect changes in system topology. Transformer tap positions as well as …
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Detection of Tubes in Radiographs Using Canny Edge Detection and Progressive Hough Transforms
… variant of the Hough transform, a common line detection algorithm, which is used to identify potential tube pixels. Our method employs repeated applications of a parallel-line-specific Hough transform to the same image with progressively lower thresholds for minimum line length. …
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Concurrent detection of transient faults in microprocessors
… critical real-time application areas. Concurrent detection of these errors is necessary for real-time operation. Most existing fault tolerance schemes either use redundancy to mask effects of transient faults or monitor the system for abnormal operations and then perform recovery operation. …
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Investigation of the supercritical fluid extraction and detection of metals in contaminated soils
… the Supercritical Fluid Extraction (SFE) and detection of sorbed metals in contaminated soils is explored. Iron containing samples were spiked onto sea sand and extracted with Supercritical Fluid CO₂. On-line detection was accomplished by decompressing the SF-CO₂ and analyte into a microwave …
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Partial discharge measurements in high voltage motors.
… is concerned with the development of an on-line technique for detecting and locating partial discharges in the stator winding of a high voltage electrical machine. This technique forms part of an on-line health monitoring strategy for the insulation of high voltage machines. Existing …
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Bioanalytical applications of fluorescence line-narrowing and non-line-narrowing spectroscopy interfaced with capillary electrophoresis and high-performance liquid chromatography
… complex biomolecular samples. Difficulties with detection and identification of the targeted analytes, e.g., biomarkers for disease, often arise because of the limited sensitivity and/or selectivity of the detection modality. Identification of an analyte based on its migration time is not …
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Developmental tissue dynamics using non-diffracting light-sheet microscopy
… However, Bessel beams combined with a confocal-line acquisition and a deconvolution improved the images that required a long depth of focus, enabling imaging of the large later stages of chick embryo development. In summary, it was shown that for imaging the highly complex developmental tissue …
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Towards room-temperature Terahertz Quantum Cascade Lasers : directions and design
… the development of 4.7 THz gain media for OI line detection in astrophysics, and the development of broadband heterogeneous gain media for THz comb generation.
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Development of Novel Optical Fiber Interferometric Sensors with High Sensitivity for Acoustic Emission Detection
… optical acoustic sensor capable of real-time on-line detection of acoustic emissions in power transformers, this dissertation presents the comprehensive research work on the theory, modeling, design, instrumentation, noise analysis, and performance evaluation of a diaphragm-based optical fiber …
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Characterization of hydrides and delayed hydride cracking in zirconium alloys
… of the Hough transform widely used in the line detection of EBSD patterns Finally, a basic model of hydrogen migration is built using ABAQUS, which is a mature finite element package with tested modeling modules of a variety of physical laws. The coupling of hydrogen diffusion, lattice …
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