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.
Results
Showing 1 to 9 of 9 for “"3D Measurement"”.
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A real time 3D surface measurement system using projected line patterns.
… by measuring the surface of the products. A 3D vision system is developed for the real time online measurement of the product surface. In this thesis, there are three main research themes. First is to produce an industrial application. All the components of this vision system are selected …
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Development of an interactive image-guided neurosurgical system
… Three technologies for three-dimensional (3D) measurement were investigated and the method of choice developed.
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Electrical Impedance Tomography in 3D: Characterization and Evaluation
… uses body surface electrical stimulation and measurements to create images of the conductivity of contrasting fluids. 3D EIT has a strong potential to image regional inhomogeneities in the lungs. This thesis seeks to characterize 3D measurement patterns, capture regional inhomogeneities in the …
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Mobile phone-based evaluation of talent tuberculosis infection
… PhotoScan to reconstruct the induration in 3D, followed by 3D measurement of the induration with the aid of Python functions. The screening accuracy of the developed process was tested using a 3D printed induration and an HTC One smartphone to capture images. In this accuracy test, the …
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Modeling of Aortic Valve Anatomic Geometry from Clinical Multi Detector-Row Computed Tomography Images
… CT data from Hartford Hospital. First, manual measurement of a variety of aortic root anatomic dimensions was performed on 95 patients using standard methods, to which other measurement methods could be compared. Second, we investigated automatic 2D measurement and a 3D measurement technique …
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Analysis of a hybrid composite pressure vessel using multi-scale computed tomography techniques
… the authors knowledge, the first direct internal 3D measurement of the accumulation of fibre damage for commercial CFRP materials under structurally relevant load conditions. A high level of confidence is placed in the measurements, as the failure processes are viewed internally at the relevant …
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Digital Holography and Optical Contouring
… and errors in the illumination angle. Practical 3D measurement of a real object, of known geometry, is used as a benchmark for the accuracy improvements achievable via the use of these digital signal processing techniques within the numerical reconstruction stage.The thesis closes by seeking to …
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Optical dosimetry tools and Monte Carlo based methods for applications in image guided optical therapy in the brain
… <p>Methods and Materials: A GPU based 3D Monte Carlo code was customized to simulate the photon transport within head phantoms consisting of skull bone, white and gray matter with differing laser beam properties, including flat, Gaussian, and super-Gaussian profiles that are converging, …
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Development of a Full-Field Time-of-Flight Range Imaging System
… time-of-flight, image ranging system or 3D camera has been developed from a proof-of-principle to a working prototype stage, capable of determining the intensity and range for every pixel in a scene. The system can be adapted to the requirements of various applications, producing high …