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 10 of 10 for “"Stereoscopy"”.
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The Venetian blind effect: Contrast disparity modulation in irradiation stereoscopy
<p>In Experiment 1 we measured contrast disparity thresholds for the perception of slant in the venetian blind effect for a square-wave carrier spatial frequency of 3.14 c/deg and square-wave modulation spatial frequencies of 0.26, 0.39, 0.79, and 1.57 c/deg.</p><p>In Experiment 2 we increased the …
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Canvassed and Delivered: Direct Selling at Keystone View Company, 1898-1910
… are an essential element in understanding stereoscopy’s ubiquity and place in American culture, but have been too frequently oversimplified or wholly overlooked in existing scholarship. Using concepts from business history, this thesis addresses the ways in which Keystone’s structure and …
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Beyond Perspective: A Spectacular History of the Three-Dimensional Image through the Stereoscope, the View-Master, and Marcel Duchamp
… underwent multiple reinventions. By examining stereoscopy with an art historical lens, this dissertation considers the technology in relation to the tradition of perspective and illusionism in art. The stereograph’s emergence alongside photography marks an intensification of a longstanding …
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Studies on Cell Membrane Ultrastructure, and the use of the Freeze-Fracturing Technique in Electron Microscopy
… of various features, an alternative method to stereoscopy was devised. This method, which can be made semiautomatic in execution, involves microdensitometry of electron micrograph negatives and certain mathematical manipulation of the optical density data.
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A user interface for terrain modelling in virtual reality using a head mounted display
… view the terrain in full 3D due to the inherent stereoscopy of the VR display. The interface goes through three iterations of user centred design and testing. This results in paper and low fidelity prototypes being created before the final interface is developed. The performance of this final VR …
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Supporting Learning through Spatial Information Presentations in Virtual Environments
… VE systems often provide display features (e.g., stereoscopy, increased field of view) that support improved perception and understanding of spatial information. Additionally, immersive VE often allow more familiar, natural interaction methods (e.g., physical walking or rotation of the head and …
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Development of Optical Coherence Tomography Systems for Ophthalmic Imaging and Intrasurgical Guidance
… and surgeons must infer depth information using stereoscopy and cannot directly visualize sub-surface anatomy. These limitations may compromise the surgeon’s ability to maneuver instruments axially and to comprehensively evaluate the three-dimensional tissue structure. </p><p>Optical coherence …
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Exploring the Effects of Higher-Fidelity Display and Interaction for Virtual Reality Games
… game within a three-sided CAVE, we found that stereoscopy and the total size of the visual field surrounding the user (i.e., field of regard or FOR) did not have a significant effect on manipulation times but two high-fidelity interaction techniques based on six degrees-of-freedom (DOF) input …