Geometry videos : a new representation for 3D animations
Name
54901936-MIT.pdf
Description
Full printable version
Size
17.69 MB
Format
Adobe PDF
Checksum (MD5)
22b959ebeefb10959ba5b99390e8fa18
Author(s)
Briceño Pulido, Héctor Manuel, 1974-
Advisor(s)
Leonard McMillan, Seth Teller and Steven Gortler.
Alternative Title
New representation for 3D animations
Date Issued
2003
Publisher
Massachusetts Institute of Technology
Abstract
Animations of three-dimensional computer graphics are becoming an increasingly prevalent medium for communication. There are many sources of 3D animations including physical simulations, scientific visualizations, and classic key-frame animations generated by an artist. There are even computer vision systems available today that are capable of capturing 3D time-varying geometric models. In this research, we develop a new representation for an important class of 3D animations, specifically time-varying manifolds. We call this representation a "Geometry Video." At present, a viewer of a 3D animation must either have a similar simulation or animation infrastructure to the animation's producer, or the producer must create a video from a predefined set of viewpoints. Geometry videos provide the ability to encode and transmit a time-varying mesh in a generic, source-independent, and view-independent format. Geometry videos are created by constructing a global two-dimensional parametrization of a manifold over a rectangular domain. Time sequences of such parametrizations are particularly well-suited to compression using methods akin to video compression. This dissertation develops the techniques necessary to encode and compress arbitrary 3D manifold animations. A system is presented for converting animations into geometry videos as well as compressing and decompressing such representations. We also discusses the problems, design-parameters, and trade-offs associated with building such a system.
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
Includes bibliographical references (leaves 136-139).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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