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Fall 2014
This thesis is concerned with the ultrasonic heart image segmentation problem using parametric active contour model. Most of the existing parametric models consider only either the edge or the regional information. In this thesis, we propose a new parametric active contour model considering both...
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Fall 2011
Osteoporosis is a bone disease characterized by the degradation of mechanical competence and support of the skeleton, leading to fracture risk of the wrist, vertebrae, and hip. The disease is due to major decrease of mass and deterioration of micro-structure of bone tissues. In this study, bone...
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Spring 2013
In this thesis, ultrasonic B-scan signal processing is investigated. A B-scan displays a cross-sectional view of the test piece and defects within it. Compared to A-scan signals, B-scan images offer more reliable fault detection. Nonetheless, traditional ultrasonic signal processing methods are...
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Spring 2020
ML80 and Grade 483 are heat treatable steels, produced by a quench and temper process, that are used in the oil and gas industry. The development of the microstructure during heat treatment is important to ensure that the correct properties are achieved for these steels. However, a real-time...
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Fall 2017
Molecular imaging techniques are important for understanding fundamental biological processes and genetic functions in organisms. Non-invasive, high-resolution, deep imaging, as well as the ability to separate molecular species, are all critical to the success of a molecular imaging technique....
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Spring 2019
Percutaneous procedures, those involving the insertion of needles into tissue, encompass a wide array of clinical applications and are used in both therapeutic and diagnostic modalities. In either of these modalities, the needle must be steered accurately towards a target location to maximize the...