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Modeling spatial and temporal variation in motion data

Lau, Manfred and Bar-Joseph, Ziv and Kuffner, James (2009) Modeling spatial and temporal variation in motion data. ACM Transactions on Graphics, 28 (5). ISSN 1557-7368

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Abstract

We present a novel method to model and synthesize variation in motion data. Given a few examples of a particular type of motion as input, we learn a generative model that is able to synthesize a family of spatial and temporal variants that are statistically similar to the input examples. The new variants retain the features of the original examples, but are not exact copies of them. We learn a Dynamic Bayesian Network model from the input examples that enables us to capture properties of conditional independence in the data, and model it using a multivariate probability distribution. We present results for a variety of human motion, and 2D handwritten characters. We perform a user study to show that our new variants are less repetitive than typical game and crowd simulation approaches of re-playing a small number of existing motion clips. Our technique can synthesize new variants efficiently and has a small memory requirement.

Item Type: Article
Journal or Publication Title: ACM Transactions on Graphics
Subjects: UNSPECIFIED
Departments: UNSPECIFIED
ID Code: 49898
Deposited By: ep_importer_pure
Deposited On: 20 Sep 2011 11:57
Refereed?: Yes
Published?: Published
Last Modified: 23 Jul 2014 14:54
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/49898

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