Motion Estimation for Time-Varying Mesh and Similar Motion Retrieval

• Tadano Ryuichi

  Department of Frontier Informatics, Graduate School of Frontier Sciences, The University of Tokyo

• Yamasaki Toshihiko

  Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo

• Aizawa Kiyoharu

  Department of Information and Communication Engineering, Graduate School of Information Science and Technology, The University of Tokyo

Bibliographic Information

Other Title

• スケルトンを用いたＴｉｍｅ‐Ｖａｒｙｉｎｇ　Ｍｅｓｈからの動き抽出と類似動作検索
• スケルトンを用いたTime-Varying Meshからの動き抽出と類似動作検索
• スケルトン オ モチイタ Time Varying Mesh カラノ ウゴキ チュウシュツ ト ルイジ ドウサ ケンサク

Abstract

We propose an algorithm for motion extraction from Time-Varying Mesh (TVM). TVM is a sequence of 3D models made for real-world dynamic objects. TVM store detailed information about 3D objects such as their shape, color, and motion. Therefore, TVM is an attractive technology for next-generation multimedia. However, the management of a TVM database, which is used for archiving and retrieving, is a significant problem because it is difficult to locate and track feature points in TVM. For efficient and effective archive and retrieval systems, motion extraction and tracking is essential. In our method, skeletons are extracted from TVM using a Reeb graph, and motion tracking is achieved by fitting a reference skeleton to the other skeletons. We developed a geodesic function using principal component analysis (PCA) for fast and noiseless skeleton extraction. Robust fitting was achieved by implementing an end-node tracking strategy. In addition, we have developed an efficient motion retrieval system compatible with conventional motion capture data using the extracted skeletons. As a result, we have developed a low-cost query generation technique using motion-capture systems and cross search between TVM and motion capture data.

Journal

• The Journal of The Institute of Image Information and Television Engineers

  The Journal of The Institute of Image Information and Television Engineers 62 (5), 729-742, 2008

  The Institute of Image Information and Television Engineers

Keywords

• Time-Varing Mesh

Details

• CRID: 1390282680075789568
• NII Article ID: 110006855216
• NII Book ID: AN10588970
• DOI: 10.3169/itej.62.729
• ISSN: 18816908
• ISSN: 13426907
• NDL BIB ID: 9502589
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9502589
• Web Site: http://www.jstage.jst.go.jp/article/itej/62/5/62_5_729/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed