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 20 of 92 for “"holograms"”.
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Minimum information holograms
Thesis (M.S.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1995.
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Imaging using volume holograms
Volume holograms can be thought of as self-aligned 3D stacks of diffractive elements that operate coherently on incident fields as they propagate through the structure. In this thesis, we propose, design and implement imaging systems that incorporate a volume hologram as one of the elements that …
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Improving reconstructions of digital holograms
… speckle reduction in reconstructions of digital holograms (DHs), and B) modeling and overcoming partial occlusion e®ects in reconstructions of DHs, and using occlusions to reduce the effects of the twin image in reconstructions of DHs. Part A represents the major part of this thesis. Speckle …
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Optimisation of Phase-Only Computer-Generated Holograms
… the 3D display market. The generation of holograms for practical displays is constrained by the need to compute phase-only holograms compatible with current spatial light modulators (SLMs), which are not yet capable of displaying fully complex holograms but can only modulate either phase …
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Toward accurate computation of optically reconstructed holograms
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991.
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An autostereoscopic display using reflection Edgelit holograms
Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2001.
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Computational reconstruction of images from optical holograms
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Synthetic Holograms and Image Reconstruction From Suboptical Diffraction Patterns
Made available in DSpace on 2014-12-10T19:07:11Z (GMT). No. of bitstreams: 1 7317524.pdf: 2494853 bytes, checksum: e386be673969e464aab02428498c39f1 (MD5) Previous issue date: 1973
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Learning Disentangled Representations of Holograms via Deep Generative Model
… and learn the hidden structure of input holograms. It is thus able to generate holograms through the learning of the disentangled latent representations. For practical purposes, we propose a new technique called hologram super-resolution (HSR). It exploits a supervised learning model to …
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A System for the efficient automated analysis of reconstructed double-pulsed holograms
Double-pulsed holograms of particles in a flow form the basis of Holographic Particle Image Velocimetry (HPIV), which is becoming widely used for the measurement of three-dimensional velocity fields. The major deficiency of HPIV is that the double-pulsed holograms must be surveyed by a human …
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Dynamics of Multi-functional Acoustic Holograms in Contactless Ultrasonic Energy Transfer Systems
… cost-effective, and high-fidelity acoustic holograms in UPT systems to selectively enhance and pattern the electrical power output from the receivers. Different holograms are numerically designed to create single and multi-focal pressure patterns in a target plane where an array of receivers …
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Implementation of ImageActionplus software for improved image analysis of solid propellant combustion holograms.
… thesis supports computer-aided data analysis of holograms produced from rocket motor firings. The work reported in this thesis modified existing software code to make it compatible with installed upgrades in the microcomputer imaging system. In particular, this involved converting the format of C …
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The construction of a pulsed ruby laser and its employment in taking holograms.
Thesis: B.S., Massachusetts Institute of Technology, Department of Physics, 1971
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Optimization of the holographic process for imaging and lithography
Since their invention in 1948 by Dennis Gabor, holograms have demonstrated to be important components of a variety of optical systems and their implementation in new fields and methods is expected to continue growing. Their ability to encode 3D optical fields on a 2D plane opened the possibility of …
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Three dimensional visualization through use of HoloLens
… to create 3D volumes of MRI data in the form of holograms. The MRI data is taken from heart scans. The goal of this project is to create high resolution images using late gadolinium enhancement (LGE) of myocardial scar. These images would be generated one of two ways: voxel-wise 3D scar rendering …
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