title: Model-based approach for human kinematics reconstruction from markerless and marker-based motion analysis systems.
abstract: Modeling tools related to the musculoskeletal system have been previously developed. However, the integration of the real underlying functional joint behavior is lacking and therefore available kinematic models do not reasonably replicate individual human motion. In order to improve our understanding of the relationships between muscle behavior, i.e. excursion and motion data, modeling tools must guarantee that the model of joint kinematics is correctly validated to ensure meaningful muscle behavior interpretation. This paper presents a model-based method that allows fusing accurate joint kinematic information with motion analysis data collected using either marker-based stereophotogrammetry (MBS) (i.e. bone displacement collected from reflective markers fixed on the subject's skin) or markerless single-camera (MLS) hardware. This paper describes a model-based approach (MBA) for human motion data reconstruction by a scalable registration method for combining joint physiological kinematics with limb segment poses. The presented results and kinematics analysis show that model-based MBS and MLS methods lead to physiologically-acceptable human kinematics. The proposed method is therefore available for further exploitation of the underlying model that can then be used for further modeling, the quality of which will depend on the underlying kinematic model.
authors: Laboratory of Anatomy, Biomechanics and Organogenesis (LABO), Faculty of Medicine Université Libre de Bruxelles (ULB), Belgium; Department of Applied Mathematics, Polytechnical University, Saint Petersburg, Russia. Electronic address: vcholouk@ulb.ac.be.
authors: V
authors: V
authors: Sholukha
authors: B
authors: B
authors: Bonnechere
authors: P
authors: P
authors: Salvia
authors: F
authors: F
authors: Moiseev
authors: M
authors: M
authors: Rooze
authors: S
authors: S
authors: Van Sint Jan
mesh_terms: D001696:Biomechanical Phenomena; D006801:Humans; D007596:Joints / Q000502:physiology*; D035002:Lower Extremity / Q000502:physiology; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D034941:Upper Extremity / Q000502:physiology
keywords: AF; AL; Computational modeling.; Constrained registration; DoF; GCS; GM; IK; Joint modeling; Kinect™; LCS; LL; MA; MBA; MBS; MLS; Multibody system kinematics; STA; TF; UpL; anatomical frame; anatomical landmark; degree-of-freedom; generic model; global coordinate system; inverse kinematics; local coordinate system; lower limb model (including pelvis); marker-based stereophotogrammetry; markerless single-camera hardware; model-based approach; motion analysis; soft tissue artifact; technical frame; upper limb model (including pelvis and spine)