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Permanent link (DOI): https://doi.org/10.7939/R3DX18

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A GPU-based Framework for Real-time Free Viewpoint Television Open Access

Descriptions

Other title
Subject/Keyword
GPU-accelerated algorithms
WebGL
Real-time Free Viewpoint Television
CUDA
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Shegeda, Kyrylo
Supervisor and department
Boulanger, Pierre
Examining committee member and department
Boulanger, Pierre (Computing Science)
Baker, Harlyn (University of Heidelberg)
Cheng, Irene (Computing Science)
Department
Department of Computing Science
Specialization

Date accepted
2014-01-24T11:03:17Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
Thesis addresses two main problems of Free Viewpoint TV: generation of arbitrary viewpoint in real-time and its delivery to end-user. For the first problem a GPU-based algorithm capable of generating free viewpoints from a network of fixed HD video cameras was developed. We used a space-sweep algorithm to estimate depth information. The view generation sub-system uses it to render new synthetic images for an arbitrary viewpoint. We show how the computations can be divided from each other and parallelized using CUDA. The tests for publicly available Microsoft sequence are provided. For the second problem, we proposed an open-source browser-based Free Viewpoint Video player. The player is implemented using WebGL where rendering is performed solely on a GPU. It is completely asynchronous - data retrieval from the server and rendering do not block the browser. The player fits perfectly into the presented framework and can greatly improve scalability.
Language
English
DOI
doi:10.7939/R3DX18
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
"A GPU-based Real-time Algorithm for Virtual Viewpoint Rendering from Multi-video", IEEE International Symposium on Multimedia (ISM2013)"Web browser-based Free Viewpoint Video player", IEEE International Symposium on Multimedia (ISM2013)"A GPU-based Real-time Algorithm for Virtual Viewpoint Rendering from Multi-video" (extended version), 2013 Symposium on GPU Computing and Applications

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