Human movement analysis using stereophotogrammetry. Part 2: Instrumental errors

Lorenzo Chiari, Ugo Della Croce, Alberto Leardini, Aurelio Cappozzo

Research output: Contribution to journalArticle

261 Citations (Scopus)

Abstract

This paper reviews the main aspects involved with the management of instrumental errors associated with video-based optoelectronic stereophotogrammetry. Insights on how such errors propagate to kinematic quantities are of great interest in the field of human movement analysis to improve the precision and reliability of measurements. The review focuses on the technical assessment and analytical compensation procedures to cope with instrumental errors. Relevant contributions dealing with intrinsic sources of systematic and random errors, such as the issues concerning camera calibration and filtering and smoothing of marker position data, are presented. Procedures for marker imaged processing, and missing marker recovery are also surveyed. Methods for checking the accuracy and precision of stereophotogrammetric systems are then reviewed. Finally, since the desired outcome of the movement measurements is a reliable estimate of body segment kinematics, state-of-the-art techniques proposed for minimization of error propagation arising from a cluster of external markers are described.

Original languageEnglish
Pages (from-to)197-211
Number of pages15
JournalGait and Posture
Volume21
Issue number2
DOIs
Publication statusPublished - Feb 2005

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Photogrammetry
Biomechanical Phenomena
Calibration

Keywords

  • Experiment design
  • Human movement analysis
  • Measurement errors
  • Optoelectronic stereophotogrammetry
  • Spot-check

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Human movement analysis using stereophotogrammetry. Part 2 : Instrumental errors. / Chiari, Lorenzo; Della Croce, Ugo; Leardini, Alberto; Cappozzo, Aurelio.

In: Gait and Posture, Vol. 21, No. 2, 02.2005, p. 197-211.

Research output: Contribution to journalArticle

Chiari, Lorenzo ; Della Croce, Ugo ; Leardini, Alberto ; Cappozzo, Aurelio. / Human movement analysis using stereophotogrammetry. Part 2 : Instrumental errors. In: Gait and Posture. 2005 ; Vol. 21, No. 2. pp. 197-211.
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