NDLI: Fast Computation of Transition Points for Motion Graph

Content Provider	IEEE Xplore Digital Library
Author	Xiaoyan Hu Qinping Zhao Xiaohui Liang
Copyright Year	2011
Abstract	Motion capture data analysis and reuse is an active topic in computer graphics research. Motion graph is a widely used data structure to organize raw motion capture data. A basic preprocessing step before building a motion graph is to compute pose similarities between all pairs of frames in motion data and find out local minima as candidate transition points. However, this task can be very time consuming. In this paper, we introduce a simple strategy to compute local minima efficiently. Instead of fully computing all pairs of frames in motion data to compose the resulting motion distance map, our method uniformly sample the distance map by skip frames according to an user defined sampling interval. The local minima in sampled distance map are thus restricted on sampling grids, and we introduce error metrics to evaluate the loss in accuracy. We use this error metrics as guidance to adjusting the positions of candidate transition points. We also provide an simple method to determine appropriate sampling interval. Result shows that our method can compute transition points very fast and get good approximation of transition points without our methods.
Starting Page	150
Ending Page	153
File Size	290630
Page Count	4
File Format	PDF
ISBN	9781457702716
DOI	10.1109/DMDCM.2011.59
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pose difference Measurement uncertainty Buildings Humans Estimation Animation Motion capture Approximation methods Computer animation Fast computing
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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