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 21 for “"image texture"”.
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Wavelet methods for the statistical analysis of image texture
… stochastic models to the analysis of image texture. In the first part we propose a test of stationarity for spatial data on a regular grid. This test is then incorporated into a segmentation framework in order to determine the number of textures contained within an image, a key feature …
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Quantitative Texture and Blob Analyses on Patellar Tendon Sonographic Images of Collegiate Basketball Athletes
… involves a clinical exam followed by ultrasound images for confirmation of the diagnosis to look for key factors of PT. Clinical assessment of ultrasound images of tendons is subjective and requires a high level of experience for reliable interpretation. Thus, there is a need for objective, …
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Characterizing the Effects of Histotripsy for Osteosarcoma Treatment on Tendon Structure and Function
… via biomechanical testing, ultrasound (US) image texture analysis, and histologic analysis. In this ex vivo model, canine extensor tendons collected from medium to large breed dogs are either left untreated (control) or treated indirectly (i.e. the focal point is located below the tendon) at …
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Remote sensing characterisation of the forest-tundra ecotone
… region. FTE delineation is conducted using an image texture-based classification scheme developed to statistically exploit the spatial patterns of the interface. Image texture statistics for tree cover density are derived from the grey-level co-occurrence matrix (GLCM), and the Landsat …
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Investigation on advanced image search techniques
Content-based image search for retrieval of images based on the similarity in their visual contents, such as color, texture, and shape, to a query image is an active research area due to its broad applications. Color, for example, provides powerful information for image search and classification. …
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Support vector machine and parametric wavelet-based texture classification of stem cell images
… studies and therapeutic treatments. Since colony texture is a major discriminating feature in determining quality. we introduce a non-invasive, semi-automated texture-based stem cell colony classification methodology to aid researchers in colony quality control. We first consider the general …
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Bayesian level sets and texture models for image segmentation and classification with application to non-invasive stem cell monitoring
Image segmentation and classification, the identification and demarcation of regions of interest within an image, is necessary prior to subsequent information extraction, analysis, and inference. Many available segmentation algorithms require manual delineation of initial conditions to achieve …
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Textural Analysis of Historical Aerial Photography to Determine Change In Coastal Marsh Extent: Site of the Present-Day Grand Bay National Estuarine Research Reserve (GBNERR), Mississippi, 1955-2014
… gain in marsh area is through the use of aerial image data, which offers synoptic views of the landscape at decadal-scale sampling frequencies. However, a potential problem with older panchromatic, or black-and-white, imagery is the absence of multispectral information that might be used …
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Krūties vėžio magnetinio rezonanso vaizdo tekstūros analizė /
… the segmentation of tumors on magnetic resonance images and the extraction of radiomic features using “Olea medical” software. This was followed by a statistical analysis – Mutual information analysis – using Python programming tools. Mutual information values greater than 0 were considered …
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Stereo Matching Based on Edge-Aware T-MST
… proposed to aggregate the cost according to the image texture. Specifically, cost aggregations are strongly enforced in large planar textureless regions due to the truncated edge weights. Meanwhile, the "edge fatten" effect is suppressed by employing a novel hybrid edge-prior which combines …
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Inferring program sequences for texture generation with learned abstractions
… A specfic use case we explore is to take an image or a specfic property of the image .eg. texture and apply a sequence of image transformations to produce an output image/texture, can one learn the sequence of transformations that converts the input image to the output image given only the …
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Classification of Galvanneal Steel using Optical Texture Analysis
… at the optimum level.<br/><br/>Application 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 …
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PROFILING EFFUSION CELLS BY QUANTITATIVE ANALYSIS OF MORPHOLOGY AND DIFFRACTION IMAGING PATTERNS
… in PPE samples and their correlations to the texture features of cross-polarized diffraction image (p-DI) pairs. To establish the morphology implications of the measured (p-DI) pairs, the 3D structures of PPE cells were measured by using confocal microscopy and quantified with 27 parameters …
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Generalized gamma spatial ARMA conditional model for speckled data: theoretical developments and applications
… study of conditional spatial ARMA models for SAR image data. First, we propose a conditional spatial ARMA model based on the generalized gamma distribution, which incorporates spatial correlation and accounts for the positive and asymmetric nature of SAR data. We derive the score vector, Fisher …
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Radiomic Analysis of Sonograms for the Detection of Tendon Damage
… technique extracts numerical values from medical images, such as those captured using ultrasound (US), for clinical decision-making. US images are the standard for confirming clinical tendinopathy diagnoses, as they are more accurate, less time-consuming, and less expensive than other modalities. …
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Fast, realistic terrain synthesis
… Height-maps share the same storage design as image files, as such they can be viewed like any picture and image transformation algorithms can be applied to them. Early techniques for generating terrains include fractal generation and physical simulation. These methods proved difficult to use …
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Real-time highlight removal from a single image
The problem of highlight removal from image data refers to an open problem in computer vision concerning the estimation of specular reflection components and the removal thereof. In recent applications, highlight removal methods have been employed for the reproduction of specular highlights on high …
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Ecosystem impacts of intertidal invertebrate harvesting: from benthic habitats to bird predators.
… data are not collected. The analysis of aerial imagery collected by an unmanned aerial system (UAS) was used as an alternative measure of fishing effort in intertidal areas. Results indicate that the physical scarring of the sediment (quantified through image classification methods and …
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Map-Based Localization for Unmanned Aerial Vehicle Navigation
… localization involves tracking a map through an image sequence. When the map is a 3D model, this task is referred to as model-based tracking. A by-product of the tracker is the relative 3D pose (position and orientation) between the camera and the object being tracked. State-of-the-art solutions …
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A Vegetation Analysis on Horn Island, Mississippi, ca. 1940 Using Characteristic Dimensions Derived from Historical Aerial Photography
… white photography from 1940. Using present NAIP imagery from the USDA, habitat structure was estimated by using geo-statistics, and second order statistics, from a co-occurrence matrix, to characterize texture for habitat classification. Percent land cover was then calculated to determine overall …
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