True 3D Digital Holographic Tomography for Virtual Reality Applications

True 3D Digital Holographic Tomography for Virtual Reality Applications

Bibliographic Details
Main Author: Downham, Alexander David
Language:English
Published: University of Dayton / OhioLINK 2017
Subjects:
Optics
HoloLens
Tomography
3D Applications
Holography
Point Cloud
Point Cloud and Blender
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=dayton1513204001924421
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-dayton15132040019244212021-08-03T07:05:08Z True 3D Digital Holographic Tomography for Virtual Reality Applications Downham, Alexander David Optics HoloLens Tomography 3D Applications Holography Point Cloud Point Cloud and Blender In previous work, a sparse object has been reconstructed using digital holographic tomography by recording the holograms with an `on-axis’ system, while the object is rotated about a single axis. The recorded holograms are processed through MATLAB® using the multiplicative technique. In this work an `off-axis’ Mach-Zehnder system is used to record holograms of each side of a die, by rotating the object along the x and y axes. Then the holograms of all six sides of the die are imported and reconstructed in MATLAB® using Fresnel techniques. The depth information of each side of the die is obtained by using phase unwrapping techniques. The unwrapped depth information is then converted into an N×3 array, and then into a point cloud image. Finally, the true three-dimensional image is constructed using point cloud image processing techniques. Once the true three-dimensional image is constructed, it is exported to a Microsoft HoloLens. The true three-dimensional image is now viewable in virtual reality while still containing the depth information, which is difficult to see with current virtual reality techniques used today, along with the capability of using hand gestures for image manipulation. 2017 English text University of Dayton / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=dayton1513204001924421 http://rave.ohiolink.edu/etdc/view?acc_num=dayton1513204001924421 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center.
collection NDLTD
language English
sources NDLTD
topic Optics
HoloLens
Tomography
3D Applications
Holography
Point Cloud
Point Cloud and Blender
spellingShingle Optics
HoloLens
Tomography
3D Applications
Holography
Point Cloud
Point Cloud and Blender
Downham, Alexander David
True 3D Digital Holographic Tomography for Virtual Reality Applications
author Downham, Alexander David
author_facet Downham, Alexander David
author_sort Downham, Alexander David
title True 3D Digital Holographic Tomography for Virtual Reality Applications
title_short True 3D Digital Holographic Tomography for Virtual Reality Applications
title_full True 3D Digital Holographic Tomography for Virtual Reality Applications
title_fullStr True 3D Digital Holographic Tomography for Virtual Reality Applications
title_full_unstemmed True 3D Digital Holographic Tomography for Virtual Reality Applications
title_sort true 3d digital holographic tomography for virtual reality applications
publisher University of Dayton / OhioLINK
publishDate 2017
url http://rave.ohiolink.edu/etdc/view?acc_num=dayton1513204001924421
work_keys_str_mv AT downhamalexanderdavid true3ddigitalholographictomographyforvirtualrealityapplications
_version_ 1719453285496127488

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