The objective of the work is to compare and improve the accuracy of existing methods for the computation of rigid body parameters from positions, velocities and accelerations of a set of non colinear anatomical landmarks. Instead of the common Euler angles, Cardan angles or Bryant angles, the results are expressed in terms of the screw axis parameters (i.e. axis versor and rotation angle). In clinical analysis the physical meaning of this axis is surely better understood than the named angles. The paper summarizes also the main steps of noteworthy algorithms for the extraction of finite and infinitesimal screw motion parameters from noisy measurements of markers positions, velocities and accelerations. The sensitivity to data errors of the ...
In biomechanical joint-motion analyses, the continuous motion to be studied is often approximated by...
In the field of 3D reconstruction of human motion from video, model-based techniques have been propo...
Biomechanical analysis of human movement is based on dynamic measurements of reference points on the...
The objective of the work is to compare and improve the accuracy of existing methods for the computa...
Recent work on joint kinematics indicates that the finite centroid (centre of rotation) and the fini...
Introduced in this paper is a novel approach that leads to efficient algorithms for computing the sc...
The motion between the segments of the human spine intimately reflects the state of their soft-tissu...
The motion of a rigid body can be represented by the instantaneous screw axis (ISA, also known as th...
Accurate, reliable, and reproducible methods to measure the movements of human joints have been elus...
This paper suggests a simple method to determine the global coordinates of the angular velocity and ...
This thesis develops, validates and applies the Least-Squares Axis of Rotation (LSAR) method, a new ...
Finite helical axes (FHAs) are a potentially effective tool for joint kinematic analysis. Unfortunat...
7be development of computerized and semi-automated motion analysis systems has made the study of hum...
Several methods have been developed for the kinematical analysis of bone movements in cadaveric spec...
Abstract The determination of the instantaneous axis of rotation of human joints has numerous applic...
In biomechanical joint-motion analyses, the continuous motion to be studied is often approximated by...
In the field of 3D reconstruction of human motion from video, model-based techniques have been propo...
Biomechanical analysis of human movement is based on dynamic measurements of reference points on the...
The objective of the work is to compare and improve the accuracy of existing methods for the computa...
Recent work on joint kinematics indicates that the finite centroid (centre of rotation) and the fini...
Introduced in this paper is a novel approach that leads to efficient algorithms for computing the sc...
The motion between the segments of the human spine intimately reflects the state of their soft-tissu...
The motion of a rigid body can be represented by the instantaneous screw axis (ISA, also known as th...
Accurate, reliable, and reproducible methods to measure the movements of human joints have been elus...
This paper suggests a simple method to determine the global coordinates of the angular velocity and ...
This thesis develops, validates and applies the Least-Squares Axis of Rotation (LSAR) method, a new ...
Finite helical axes (FHAs) are a potentially effective tool for joint kinematic analysis. Unfortunat...
7be development of computerized and semi-automated motion analysis systems has made the study of hum...
Several methods have been developed for the kinematical analysis of bone movements in cadaveric spec...
Abstract The determination of the instantaneous axis of rotation of human joints has numerous applic...
In biomechanical joint-motion analyses, the continuous motion to be studied is often approximated by...
In the field of 3D reconstruction of human motion from video, model-based techniques have been propo...
Biomechanical analysis of human movement is based on dynamic measurements of reference points on the...