Soft-tissue Artefact Assessment and Compensation in Motion Analysis by Combining Motion Capture Data and Ultrasound Depth Measurements

Azadeh Rouhandeh; Chris Joslin

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Paper

Soft-tissue Artefact Assessment and Compensation in Motion Analysis by Combining Motion Capture Data and Ultrasound Depth Measurements

Topics: Medical Image Applications; Optical Flow and Motion Analyses

In Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4 VISAPP: VISAPP, 511-521, 2018 , Funchal, Madeira, Portugal

Authors: Azadeh Rouhandeh and Chris Joslin

Affiliation: Carleton University, Canada

Keyword(s): Soft-tissue Artefacts, Soft-tissue Motion Capture, Hip Joint Centre Correction.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Computer Vision, Visualization and Computer Graphics ; Medical Image Applications ; Motion, Tracking and Stereo Vision ; Optical Flow and Motion Analyses

Abstract: Accurately determining the hip joint centre is a necessary component in biomechanical human motion analysis to measure skeletal parameters and describe human motion. The hip joint centre can be estimated using functional methods based on the relative motion of the femur to pelvis using reflective markers attached to the skin surface through an optical motion capture system; but this suffers inaccuracy due to the soft tissue artefact. A key objective in movement analysis is the assessment and correction of this artefact; in this case we present a non-invasive method to assess and reduce the soft tissue artefact effects using optical motion capture data and tissue thickness from ultrasound measurements during flexion, extension, and abduction of the hip joint. Results show that the displacement of markers is non-linear and larger in areas closer to the hip joint. The marker displacements are dependent on the movement type, being relatively larger in abduction movement. The quantificati on of soft tissue artefacts is used as a basis for a correction procedure for hip joint centre and minimizing effects. Results show that our method for soft tissue artefact assessment and minimization reduces the error in the functional hip joint centre approximately from 13-23mm to 7-14mm. (More)

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Paper citation in several formats:

Rouhandeh, A. and Joslin, C. (2018). Soft-tissue Artefact Assessment and Compensation in Motion Analysis by Combining Motion Capture Data and Ultrasound Depth Measurements. In Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP; ISBN 978-989-758-290-5; ISSN 2184-4321, SciTePress, pages 511-521. DOI: 10.5220/0006624205110521

@conference{visapp18,
author={Azadeh Rouhandeh. and Chris Joslin.},
title={Soft-tissue Artefact Assessment and Compensation in Motion Analysis by Combining Motion Capture Data and Ultrasound Depth Measurements},
booktitle={Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP},
year={2018},
pages={511-521},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006624205110521},
isbn={978-989-758-290-5},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018) - Volume 4: VISAPP
TI - Soft-tissue Artefact Assessment and Compensation in Motion Analysis by Combining Motion Capture Data and Ultrasound Depth Measurements
SN - 978-989-758-290-5
IS - 2184-4321
AU - Rouhandeh, A.
AU - Joslin, C.
PY - 2018
SP - 511
EP - 521
DO - 10.5220/0006624205110521
PB - SciTePress