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 20 for “"image processing and analysis"”.
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Research on Print Defect Visibility and Evaluation
<p>Banding is a well-known artifact produced by printing systems. It usually appears as lines perpendicular to the process direction of the print. Therefore, banding is an important print quality issue which has been analyzed and assessed by many researchers. However, little literature has focused …
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A deep convolutional neural network approach for biomedical applications.
… are nonlinear mapping systems whose structure and function are loosely modeled on the physical structure of the nervous systems in humans and animals. In deep learning, convolutional neural networks (CNNs) have been used to analyze visual tasks for more than 40 years. Since the mid-2000s, they …
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Spatial organization of sodium calcium exchanger and caveolin-3 in developing mammalian ventricular cardiomyocytes
… complex, leading to cross-bridge formation and cell contraction. However, previous functional data suggests an additional CICR modality involving reverse mode Na+-Ca2+ exchanger (NCX) activity also exists in neonate cardiomyocytes. To further our understanding of how CICR changes occur …
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A New Tool for Rock Mass Discontinuity Mapping from Digital Images: VTtrace
… or other underground spaces is a time intensive and sometimes dangerous process. A system that can automate this task could minimize human exposure to rockfalls, rockbursts or instabilities and facilitate the use of new methods of data visualization such as virtual environments. This research was …
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Optimization of cDNA microarray image analysis methods
… to stimuli that control growth, development and signal environmental changes. Understanding genes’ expression at the level of transcription and/or other stages of gene regulation at the mRNA level (half life of mRNA, RNA production from primary transcript) might reveal insights into the genes …
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Development of an Imaging Tool for Commercial Mushroom Yield and Quality Estimation
Cultivation and production of mushrooms has increased during the previous decade. The production increase is due to the development of farms combined with the rise in consumer’s general understanding of the medicinal and dietary benefits of mushrooms consumption. Improvements in mycology and …
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Advanced classification methods for UAV imagery
… benefits in favor of automated territory control and monitoring. In particular, unmanned aerial vehicles (UAVs) technology has drawn a lot of attention, providing an efficient solution especially in real-time applications. This is mainly motivated by their capacity to collect extremely high …
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Image morphological processing
Mathematical Morphology with applications in image processing and analysis has been becoming increasingly important in today's technology. Mathematical Morphological operations, which are based on set theory, can extract object features by suitably shaped structuring elements. Mathematical …
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Compressed Sensing Based Image Restoration Algorithm with Prior Information: Software and Hardware Implementations for Image Guided Therapy
… theorem, we present the integrated software and hardware platform for developing a total-variation based image restoration algorithm by applying prior image information and free-form deformation fields for image guided therapy. The core algorithm we developed solves the image restoration …
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Single atom imaging with time-resolved electron microscopy
… set of challenges, particularly regarding noise and the interaction between the electron beam and the specimen. This thesis develops a set of analytical tools for capturing atomic motion and analyzing the dynamic behaviour of materials at the atomic scale. Machine learning is increasingly playing …
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Enhancing dimensionality in remote sensing images
… surface. These modalities include panchromatic images, which are single-band grayscale representations; multispectral images, capturing a limited number of spectral bands; and hyperspectral images, encompassing a broad spectrum with numerous spectral bands. Images of the same scene are often …
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PROFILING EFFUSION CELLS BY QUANTITATIVE ANALYSIS OF MORPHOLOGY AND DIFFRACTION IMAGING PATTERNS
Profiling cells in human pleural and peritoneal effusion (PPE) samples is an essential task for cytological diagnosis of cancers and patient management. Conventional PPE cytology of a PPE sample is labor intensive and its efficacy depends heavily on the experience of trained specialists in addition …
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Non-contact Methods for Detecting Hot-mix Asphalt Nonuniformity
… 50%. Quality Assurance procedures should detect and quantify the presence of this problem in newly constructed pavements. Current practices are usually based on visual inspections that identify non-uniform surface texture areas. An automatic process that reduces subjectivity would improve the …
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Structure and Properties Relationships of Densified Wood
… strain in various environments, on the strength and stiffness of compressed wood samples. It is believed that transverse compression of wood at specific conditions of temperature and moisture will result in improved mechanical properties, which can be attributed to increased density and perhaps …
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Investigating the Evolution of Rock Discontinuity Asperity Degradation and Void Space Morphology under Direct Shear
… represent planes of relative weakness and enhanced hydraulic conductivity and, thus, have a substantial influence on the hydro-mechanical behaviour of the overall rock mass. While the shearing of rock mass discontinuities has been extensively studied in the past, there remains …
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Digital Morphometry : A Taxonomy Of Morphological Filters And Feature Parameters With Application To Alzheimer's Disease Research
… of objects within a two-dimensional digital image. Quantitative measurement is a two-step process: the application of geometrical transformations to extract the features of interest, and then the actual measurement of these features. With regard to the first step the morphological filters of …
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A Comprehensive Framework for Adaptive Optics Scanning Light Ophthalmoscope Image Analysis
<p>Diagnosis, prognosis, and treatment of many ocular and neurodegenerative diseases, including achromatopsia (ACHM), require the visualization of microscopic structures in the eye. The development of adaptive optics ophthalmic imaging systems has made high resolution visualization of ocular …
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Development of supervised and unsupervised pixel-based classification methods for medical image segmentation
… factors, such as histological tumour grade and estrogens reception (ER) status, to clinical management of the disease. Until now, histological grading and ER status assessment is based on the visual evaluation of breast tissue specimens under the microscope. More specifically, grading is …
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Measurement, optimisation and control of particle properties in pharmaceutical manufacturing processes
The understanding and optimisation of particle properties connected to their structure and morphology is a common objective for particle engineering applications either to improve materialhandling in the manufacturing process or to influence Critical Quality Attributes (CQAs) linkedto product …
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Data-driven X-ray Tomographic Imaging and Applications to 4D Material Characterization
… there are concerns about X-ray radiation damage and tomographic acquisition speed in real-life applications. Strategies with insufficient measurements, such as measurements with insufficient dosage (low-dose) and measurements with insufficient projection angles (sparse-view), have been proposed …