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 13 of 13 for “"computer-generated holography"”.
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Media Production for Computer-Generated Holography
Computer Generated Holography (CGH) is an immersive next-generation display technology with significant potential. It is the only technique that allows the reconstruction of true three-dimensional imagery while not compromising display resolution - achieved through the diffraction and interference …
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Computer-Generated Holography for Areal Additive Manufacture
… limited ability to manage or compensate for heat generated. The rapidly moving heat source spot results in high thermal cycling and is a major influence on residual stress and distortion. Mechanical limitations in the galvoscanner mean that over or under-heating is common and can lead to voids, …
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Improving the computation efficiency for computer-generated holography
… in the entire display technology industry. Computer-generated holography (CGH) based picture generation unit is a promising and viable technology. Unlike other display counterparts where light intensity modulation is being used, CGH can modulate the phase of the incoming light and form an …
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Optimal Constrained Feedback: Computer-Generated Holography using Optimal-Gains
… pattern of a real-world object. However the CGH (computer-generated holography) problem, where the real-world limitations of the modulation devices mean that the complex wavefront of a scene cannot be fully recreated, remains a considerable challenge. In this thesis, I present Optimal Constrained …
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Optimisation of Phase-Only Computer-Generated Holograms
… leading to discomfort and limited realism. Holography, by contrast, fully reconstructs the optical wavefront of 3D objects and generates a full 3D light field with true depth cues, which has the potential to provide an unparalleled sense of depth and immersion. However, the practical …
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Advanced Algorithmic Approaches for Improving Image Quality in 2D and 3D Holographic Displays
Holography is an advanced three-dimensional (3D) imaging and visualisation technology capable of reconstructing realistic 3D scenes. Despite decades of concentrated effort, holographic 3D displays are still struggling to meet the demands required for a consumer-ready solution. This thesis addresses …
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Towards Passing Visual Turing Test with Computational 3D Displays and Appearance Modeling
… and vision degradation after prolonged use. Computer-generated holography (CGH) is widely regarded as the next-generation technology capable of utilizing light interference and diffraction to produce true 3D graphical projections. However, its adoption was fundamentally limited by the low …
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Advanced Computational Holography for Perceptual Enhancement and Application in HUDs
This thesis explores computational holography with a focus on perceptual contrast enhancement, aiming to enable more practical and feasible holographic displays for both 2D and 3D applications. It begins with an overview of holographic displays and their advantages. Based on the core components of …
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Improving Image Quality in Holographic Projections through Novel Iterative Algorithmic Solutions
… current two dimensional stereoscopic displays. Holography is capable of demonstrating fully three-dimensional images without a loss in resolution, however, its current drawbacks such as comparatively limited field of view, limitations in hardware, with spatial light modulators mostly capable of …
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Computed Tomographic Imaging Spectrometry
… based on their performance in a number of computer simulations to determine the most optimal dispersion pattern. A new CTIS disperser incorporating a novel radial design pattern was developed and tested. Reconstruction results of various spatial and spectral targets are presented. …
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Diffraction-based Optical Architectures for Processing One-dimensional Data
… low-energy, cloud on-demand and scalable computer hardware, with photonic methods at the centre of emerging solutions. Using light as a fundamental resource, free-space optical computing and integrated photonic computing devices provide, respectively, powers of natural parallelism and …
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Adaptive Aberration Correction for Holographic Projectors
… builds up on the greatest minds of Cambridge Holography: Adrian Cable, Edward Buckley, Jonathan Freeman, and Christoph Bay. Cable and Buckley, developed an OSPR algorithm which was the first to provide high-quality real-time hologram generation using general-purpose hardware while Freeman …