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A Compact Representation for 3D Animation Using Octrees and Affine Transformations
Joint Authors
Wang, Youyou
DeSouza, Guilherme N.
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-03-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Engineering Sciences and Information Technology
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
This paper presents a new and compact 3D representation for nonrigid objects using the motion vectors between two consecutive frames.
Our method relies on an Octree to recursively partition the object into smaller parts.
Each part is then assigned a small number of motion parameters that can accurately represent that portion of the object.
Finally, an adaptive thresholding, a singular value decomposition for dealing with singularities, and a quantization and arithmetic coding further enhance our proposed method by increasing the compression while maintaining very good signal-noise ratio.
Compared to other methods that use tri-linear interpolation, Principle Component Analysis (PCA), or non-rigid partitioning (e.g., FAMC) our algorithm combines the best attributes in most of them.
For example, it can be carried out on a frame-to-frame basis, rather than over long sequences, but it is also much easier to compute.
In fact, we demonstrate a computation complexity of Θ(n2) for our method, while some of these methods can reach complexities of O(n3) and worse.
Finally, as the result section demonstrates, the proposed improvements do not sacrifice performance since our method has a better or at least very similar performance in terms of compression ratio and PSNR.
American Psychological Association (APA)
Wang, Youyou& DeSouza, Guilherme N.. 2010. A Compact Representation for 3D Animation Using Octrees and Affine Transformations. International Journal of Digital Multimedia Broadcasting،Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-508468
Modern Language Association (MLA)
Wang, Youyou& DeSouza, Guilherme N.. A Compact Representation for 3D Animation Using Octrees and Affine Transformations. International Journal of Digital Multimedia Broadcasting No. 2010 (2010), pp.1-11.
https://search.emarefa.net/detail/BIM-508468
American Medical Association (AMA)
Wang, Youyou& DeSouza, Guilherme N.. A Compact Representation for 3D Animation Using Octrees and Affine Transformations. International Journal of Digital Multimedia Broadcasting. 2010. Vol. 2010, no. 2010, pp.1-11.
https://search.emarefa.net/detail/BIM-508468
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508468