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 37 for “"linear features"”.
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Detection and Localization of Linear Features Based on Image Processing Methods
… work, the general problem of the detection of features in images is considered. One of the methods, the orientation detection of lines, utilized the Radon transform (sinogram) of an image to detect lines at different angles in an image. The line thickness algorithm was generated by finding a …
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Wolf Selection of Human-Modified Linear Features and Cover Types When Hunting and Killing White-Tailed Deer Fawns
… timber harvest areas and linear features—and cover types influence where wolves hunt and kill fawns. During 2016–2019, I fit wolves with 20-min-fix-interval Global Positioning System (GPS) collars and searched clusters of GPS-locations to identify where wolves killed fawns. …
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Road detection on radar imagery
… The line detection part analytically detects linear features using a facet Valley finding technique. Valleys are defined as zero crossings of the first directional derivatives of a bicubic facet model taken in a direction extremizing the second directional derivative. The road detection and …
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Advanced techniques for digital image processing
… information and then enhances the identifying features. Thus, it can achieve a better enhancement result than conventional homomorphic FFT techniques. By using a short space basis implementation, a large amount of memory space can be saved, consequently the computation speed is greatly …
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Effects of automated cartographic generalization on linear map features
… suggested that the nature of representation of linear features on maps be considered in the analysis of effectiveness of automated generalization. The development of a computer platform for evaluating linear generalization algorithms is described and three studies which make use of the platform …
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Electron beam characterization of carbon nanostructures
… images of "edge-on" graphene sheets show linear image features due to the projected potential of the sheets. Here, intensity profiles along these linear features can measure the curvature of the sheet, as well as the shape of the sheet (i.e. hexagonal, triangular). Also, electron …
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Digital image processing of orbital synthetic aperture radar
… research performed into the enhancement of linear features, corresponding to ships' wakes, in noisy SAP satellite images. A summary of noise reduction techniques is described, and the suitability of each to the problem of enhancing linear features in SAR images is discussed. A survey of …
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Low level and intermediate level vision in aerial images
… An edge-based representation that makes explicit linear features and their spatial relationships is developed. Examples are presented in the scene domain of aerial images of urban scenes containing man-made structures. The techniques used are based on a common structural and statistical model of …
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Interfaces in Numerical Relativistic hydrodynamics
… As a result, we expect that large<br/>non-linear features, such as shock waves, will be formed. Therefore it is essential<br/>that the techniques developed to incorporate these sharp interfaces allow<br/>for their interaction with non-linear features in a stable manner …
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Habitat Selection and Range Overlap of Moose and White-tailed Deer in the Boreal Plains of Saskatchewan
… Canada, human land use has created extensive linear features (roads, trails, transmission corridors) linking nodes of disturbance such as forestry cutovers and wildfire burns. These changes, compounded by climate change, are reshaping predator–prey relationships among moose (Alces alces), …
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Resource selection, predation risk, and population dynamics of woodland caribou
… have created early seral-stage forests and linear features across the landscape of west-central Alberta. I studied the effects of landscape disturbance on the predator-prey dynamics of woodland caribou, wolves (Canis lupus) and other ungulate prey species in this region. I examined spatial …
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Resource selection, predation risk, and population dynamics of woodland caribou
… have created early seral-stage forests and linear features across the landscape of west-central Alberta. I studied the effects of landscape disturbance on the predator-prey dynamics of woodland caribou, wolves (Canis lupus) and other ungulate prey species in this region. I examined spatial …
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Using the Hough transform for analysis of images containing straight lines
… transform method are discussed. For example, linear features in images can be enhanced in this manner. This method can be used in a machine vision system in which straight lines must be extracted from an image. However, the computation times are too long for a real time system. In this case …
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Differential habitat selection of black bears, gray wolves, and boreal caribou in the Boreal Shield of Saskatchewan
… and into fall. Bears also showed selection for linear features like roads and trails, and lower elevations (which included drainages). Wolves consistently avoided mature black spruce, a potential caribou refuge, but strongly selected open muskeg habitats, potential habitats for multiple prey …
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Icy Satellite Tectonic, Geodynamic and Mass Wasting Surface Features: Constraints on Interior Processes and Evolution
… be reproduced in labs, thus analyzing surface features provides insights to confirm, discount, or improve models. I present the methods used to map and characterize the morphometry of several types of geologic features found on three icy satellites of Jupiter and Saturn, and the resulting data. …
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Bird and Bat Diversity and Abundance in Agroecosystems in Relation to Drainage Hedgerow and Landscape Structure
Hedgerows are common semi-natural linear features along agricultural drainages in temperate agroecosystems. Two important variables likely to affect diversity within hedgerows include hedgerow structure and landscape structure. I hypothesized that hedgerows that are taller, wider, and more variable …
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Quantifying the Impact of Seismic Lines on Methane Release in a Treed Bog Ecosystem using Unmanned Aerial Vehicles (UAVs)
… specifically seismic lines. These “low-impact” linear features present a challenge to researchers as they exist at dimensions too small for the majority of remote-sensing platforms to successfully identify and measure, even though they account for a considerable portion of land disturbance in …
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The Effect of Topography on Surface Behavior of Pseudomonas aeruginosa
… Prior research demonstrated that topographical features comprised of uniform, micro-meter sized particles hindered the biofilm formation of Pseudomonas aeruginosa (P. aeruginosa), an opportunistic human pathogen. The goal of the present work is to 1) further develop a potential anti-biofilm …
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Automatic detection of roads in spot satellite images
… urban areas automatically. The roads appear as linear features. However, most edge and line detectors are not effective in detecting roads in these images because of the low signal to noise ratio, low contrast and blur in the imagery. For the automatic recognition of roads, a new line detector …
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Semi-Supervised Deep Learning Frameworks for Transmission-Scale Load Disaggregation and Behind-the-meter Solar Prediction
… are adopted. Disaggregation models utilizing Linear, bi-linear, and non-linear features are validated with real world data from PJM Interconnection, respectively. Based on disaggregation framework, a self-supervised, transmission-scale BTM solar prediction framework is developed based on …
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