A multigrid approach for bandwidth and display resolution aware streaming of 3D deformations

Authors:
Yuan Tian;Yin Yang;Xiaohu Guo;Balakrishnan Prabhakaran
Affiliations:
University of Texas at Dallas, Richardson, TX, USA;University of New Mexico, Albuquerque, NM, USA;University of Texas at Dallas, Richardson, TX, USA;University of Texas at Dallas, Richardson, USA
Venue:
Proceedings of the 21st ACM international conference on Multimedia
Year:
2013

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Abstract

In this paper, we propose a novel multimedia system adaptively streaming the animation according to display resolution and/or network bandwidth. A Multigrid-like technique is used in this framework to accelerate the converging rate of the optimization of the nonlinear deformation energy. The computation is performed from coarsest mesh at the top level to the finest mesh at the bottom level and then goes back to the top again. Such V-shape calculation provides great flexibility for the networked environment. Clients are able to receive the data streaming corresponding to its display resolution and network bandwidth. A more compact form of deformation data packaging is also used in this system such that a cube element only needs six parameters instead of 24 variables as used in regular mesh representation, which significantly reduces the network overhead for the streaming.