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Designing motion graphs for video synthesis by tracking 2D feature points

Published: 16 December 2009 Publication History

Abstract

We present an intuitive and straightforward method for synthesizing videos by manipulating objects without 3D models. Video synthesis is still costly when generating the realistic motion of 3D models directly. The motion graph [Kovar et al. 2002] is a novel method that creates realistic and controllable motion from examples, while its associated motion data must be obtained beforehand using capture devices that are still expensive. On the other hand, Schödl et al. [2002] defined a video object segmented from a video frame as a "video sprite", and created controllable animations using 2D motion graphs, where the nodes correspond to the extracted video sprites and the edges represent temporal transitions between similar sprites. While their approach can create animations without 3D models, users can only control positions or animation paths of objects. Our primary contribution lies in a novel 2D motion graph search algorithm by feature points tracking, which enables us to control detailed motions of a video object through the screen space directly.

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References

[1]
Goldman, D. B., Gonterman, C., Curless, B., Salesin, D., and Seitz, S. M. 2008. Video object annotation, navigation, and composition. In ACM UIST'08, 3--12.
[2]
Kovar, L., Gleicher, M., and Pighin, F. H. 2002. Motion graphs. In ACM Transactions on Graphics, vol. 21, 473--482.
[3]
Schödl, A., and Essa, I. A. 2002. Controlled animation of video sprites. In SCA'02: Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation, 121--127.

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cover image ACM Conferences
SIGGRAPH ASIA '09: ACM SIGGRAPH ASIA 2009 Sketches
December 2009
45 pages
ISBN:9781450379366
DOI:10.1145/1667146
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 16 December 2009

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SA09
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SA09: SIGGRAPH ASIA 2009
December 16 - 19, 2009
Yokohama, Japan

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Overall Acceptance Rate 178 of 869 submissions, 20%

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