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Human body shape and motion tracking by hierarchical weighted ICP

  • Jia Chen*
  • , Xiaojun Wu
  • , Michael Yu Wang
  • , Fuqin Deng
  • *Corresponding author for this work
  • Harbin Institute of Technology Shenzhen
  • Chinese University of Hong Kong
  • The University of Hong Kong

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a new approach for tracking both the human body shape and the whole body motion with complete six DOF of each body limb without imposing rotation or translation constraints. First, a surface mesh with highly improved quality is obtained by using our new silhouette-based visual hull reconstruction method for each frame of multi-view videos. Then, a skinned mesh model is fitted to the data using hierarchical weighted ICP (HWICP) algorithm, where an easy-to-adjust strategy for selecting the set of ICP registration points is given based on the weights of the skinned model and the Approximate Nearest Neighbors (ANN) method is applied for fast searching nearest neighbors. By comparing HWICP with the general hierarchical ICP (Iterative Closest Point) method based on synthetic data, we demonstrate the power of weighting corresponding point pairs in HWICP, especially when adjacent body segments of target are near 'cylindrical-shaped'.

Original languageEnglish
Title of host publicationAdvances in Visual Computing - 7th International Symposium, ISVC 2011, Proceedings
PublisherSpringer Verlag
Pages408-417
Number of pages10
EditionPART 2
ISBN (Print)9783642240300
DOIs
StatePublished - 2011
Externally publishedYes
Event7th International Symposium on Visual Computing, ISVC 2011 - Las Vegas, NV, United States
Duration: 26 Sep 201128 Sep 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume6939 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference7th International Symposium on Visual Computing, ISVC 2011
Country/TerritoryUnited States
CityLas Vegas, NV
Period26/09/1128/09/11

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