Image-based center of mass estimation of the human body via 3D shape and kinematic structure

Tomoya Kaichi, Shohei Mori, Hideo Saito, Kosuke Takahashi, Dan Mikami, Mariko Isogawa, Yoshinori Kusachi

Research output: Contribution to journalArticle

Abstract

This paper presents a method to estimate a time-sequential trajectory of the center of mass (CoM) of an athlete from a multi-view set of cameras. Collecting the CoM typically requires large-scale measuring systems or attaching sensors to the athletes. To mitigate such hardware limitations, the present study takes a multi-view video-based approach. The proposed method reconstructs subjects’ voxels from a set of multi-view frames and weights each voxel with body part-dependent weights to calculate a CoM. Our results, using real data measured in a studio, showed that the proposed method can estimate CoM within 20 mm concerning center of pressure measures.

Original languageEnglish
Article number17
JournalSports Engineering
Volume22
Issue number3-4
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Center of mass
  • Multi-view human pose estimation
  • Multi-view videos
  • Visual hull

ASJC Scopus subject areas

  • Biomedical Engineering
  • Modelling and Simulation
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Mechanics of Materials
  • Mechanical Engineering

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