PCA-based 3D shape reconstruction of human foot using multiple viewpoint cameras

Edmée Amstutz, Tomoaki Teshima, Makoto Kimura, Masaaki Mochimaru, Hideo Saito

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This paper describes a multiple camera-based method to reconstruct the 3D shape of a human foot. From a foot database, an initial 3D model of the foot represented by a cloud of points is built. The shape parameters, which can characterize more than 92% of a foot, are defined by using the principal component analysis method. Then, using "active shape models", the initial 3D model is adapted to the real foot captured in multiple images by applying some constraints (edge points' distance and color variance). We insist here on the experiment part where we demonstrate the efficiency of the proposed method on a plastic foot model, and also on real human feet with various shapes. We propose and compare different ways of texturing the foot which is needed for reconstruction. We present an experiment performed on the plastic foot model and on human feet and propose two different ways to improve the final 3D shape's accuracy according to the previous experiments' results. The first improvement proposed is the densification of the cloud of points used to represent the initial model and the foot database. The second improvement concerns the projected patterns used to texture the foot. We conclude by showing the obtained results for a human foot with the average computed shape error being only 1.06 mm.

Original languageEnglish
Pages (from-to)217-225
Number of pages9
JournalInternational Journal of Automation and Computing
Volume5
Issue number3
DOIs
Publication statusPublished - 2008 Jul 1

Keywords

  • 3D reconstruction from multiview cameras
  • Principal component analysis
  • Shape measurement

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modelling and Simulation
  • Computer Science Applications
  • Applied Mathematics

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