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 3 of 3 for “"quality assurance phantom"”.
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Effect of Image Sharpening on Radiographic Image Quality
… However, its effect on radiographic image quality has not been studied. The purpose of this study is to evaluate the effect of image processing on the quality of dental digital radiographs using the most common type of filter; sharpening. Four imaging modalities (2 CMOS, 1 PSP, 1 …
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Post-beamforming filtering for enhanced contrast resolution in medical ultrasound.
… by image reconstructions from a simulated cyst phantom obtained using a finely sampled array and a coarsely sampled array. These results are also verified by image reconstructions obtained from Sonix RP system imaging a quality assurance phantom with contrast targets, optical nerve head in …
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Development and Implementation of A Dynamic Heterogeneous Proton Equivalent Anthropomorphic Thorax Phantom For The Assessment of Scanned Proton Beam Therapy
… PROTON EQUIVALENT ANTHROPOMORPHIC THORAX PHANTOM FOR THE ASSESSMENT OF SCANNED PROTON BEAM THERAPY</p> <p>by</p> <p><em>James Leroy Neihart, B.S.</em></p> <p>APPROVED:</p> <p><br />______________________________<br />David Followill, Ph.D.<br /><br /></p> <p><br …