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 95 for “"texture analysis"”.
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Morphological granulometry for texture analysis
This thesis concerns the analysis of digital texture images, using techniques from mathematical morphology and regression modelling for the classification of texture images. It investigates the use of granulometric moments, arising from the morphological pattern spectrum, as texture descriptors to …
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X-ray Texture Analysis of CVD Diamond
No abstract prepared.
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Classification of Galvanneal Steel using Optical Texture Analysis
… of image processing methods to the analysis of the steel surface morphology presents the ability to classify coating quality based on extracted texture information. Using images extracted from actual galvanneal steel coils, the primary objective is to investigate the link between the …
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Three dimensional surface texture analysis for characterisation of enamel erosion
3D surface texture parameters have yet to be applied to dental erosion of human enamel. This project aimed to investigate the effect of acid-mediated erosive enamel wear on the micro-texture of polished (Group 1) and unpolished (Group 2) human enamel in vitro. 20 polished and 20 unpolished enamel …
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The Use of Texture Analysis in Breast Magnetic Resonance Imaging
… work used an image processing technique known as texture analysis (TA), which analyses pixel intensity distributions on a pixel-by-pixel scale to identify patterns that may not be visually interpretable, to probe MRI images of women with proven breast cancer. Whilst previous works have …
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Automatic selection of optimal window size and shape for texture analysis
… examination of the relationship between texture and scale, and its effects on image classification. This study involved creating a model that automatically selected windows of optimal size according to the location of a pixel within a land cover region and the texture of the surrounding …
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Computer vision and texture analysis for characterization of X-ray images of rocks
… based on their structural properties. Such an analysis adds a structural aspect to segmentation procedures to understand competing pathways for fluid-flow better. Second, a computer vision technique called Gray-Level Co-occurrence Matrix (GLCM) is applied to grayscale micro-CT images. GLCM …
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A Hybrid Neural Network Architecture for Texture Analysis in Digital Image Processing Applications
A new hybrid neural network model capable of texture analysis in a digital image processing environment is presented in this thesis. This model is constructed from two different types of neural network, self-organisation and back-propagation. Along with a brief resume of digital image processing …
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Early Forest Fire Detection Using Texture Analysis of Principal Components from Multispectral Video
… plume is captured through Principal Component Analysis (PCA) where the Multispectral-Multitemporal PCA is performed on a sequence of video frames simultaneously. The presence of a plume existing in one of the higher order principal components is determined by the texture of its spatial content. …
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Taxonomic and Seasonal Variation Among Extant Hyracoids Based on Dental Microwear Texture Analysis
… series for the interpretation of microwear texture patterns, and inference of diets, of extinct members of the order. This was done by obtaining molds of cheek teeth from museum specimens and gathering point cloud data with a Sensofar white-light scanning confocal microscope to compare …
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Urban physics : molecular approach to city texture analysis for controlling Urban Heat Island
Defined as intensification of urban air temperatures when compared to their rural surroundings common to cause negative externalities ranging from imperiling human health and comfort to amplifying energy costs and air pollution, Urban Heat Island (UHI) effect has been known to pose a severe burden …
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Quantitative Texture Analysis and Automated Segmentation of Patellar Tendon Sonographic Images on Collegiate Athletes
… that have led to the development of ultrasound texture analysis as a valuable tool for a more detailed assessment of these tissues. These limitations can also be addressed through machine learning algorithms such as convolutional neural networks to automate image segmentations for determination …
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Analysis of Bone Crushing Behavior of the Dire Wolf (<em>Canis dirus</em>) Using Dental Microwear Texture Analysis.
… wolf (<em>C. lupus</em>). Here dental microwear texture analysis of the m2 is used to test the hypothesized dietary behavior of <em>C. dirus</em>. If the m2 does distinguish dietary tendencies and dire wolves were heavy bone consumers, then the microwear signals of <em>C. dirus</em> should be …
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Run Length Texture Analysis of Thoracolumbar Facia Sonographic Images: A Comparison of Subjects with And Without Low Back Pain (LBP)
… information about soft tissue structure, texture analysis could increase US images' diagnostic power. The texture of an ultrasound image is the variation of pixel intensities throughout the region of interest (ROI) that produces different patterns; texture analysis is an approach that …
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Investigating the glassy to rubbery transition of polydextrose and corn flakes using automatic water vapor sorption instruments, DSC, and texture analysis
… food system, corn flakes. In addition, textural analysis was conducted in order to relate the mechanical properties of corn flakes to the glassy to rubbery transition results from the thermal method and the automated sorption isotherm methods. The results from corn flakes showed that the AquaSorp …
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New wavelet based space-frequency analysis methods applied to the characterisation of 3-dimensional engineering surface textures.
… make progress solving real problems of surface texture characterisation. A measurement apparatus like a microscope gives a representation of a surface textures that can be seen as an image. This is actually an image representing the relief of the surface texture. From the image processing point …
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Effects of Instrumentation on Dental Microwear Textures: Reanalysis and Augmentation of an Early Hominin Sample
<p>Dental microwear texture analysis has been refined to a methodology relying upon scanning confocal microscopy for its advantages of repeatability and standardized quantification. A new instrument, the Plu Neox (Sensofar Corp.) confocal profiler recently entered the market, sparking questions …
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Analysis of crystallographic texture information by the hyperspherical harmonic expansion
The field of texture analysis is fundamentally concerned with measuring and analyzing the distribution of crystalline orientations in a given polycrystalline material. Traditionally, the orientation distribution function describing crystallographic orientation information is written as a linear …
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