Naslov
The Principles of 3D Photogrammetry Systems Used in Human Motion Capture and Postural Assessment

Autori
Pribanić, Tomislav

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, pregledni

Knjiga
Measurement and Analysis of Human Locomotion

Urednik/ci
Medved, Vladimir

Izdavač
Springer

Grad
Culemborg

Godina
2021

Raspon stranica
95-128

ISBN
978-3-030-79685-3

ISSN
1864-5763

Ključne riječi
3D photogrammetry, 3D reconstruction, motion capture, human posture

Sažetak
There are many different systems capable of objectively measuring and analyzing various motion parameters and signals. The focus of this text is on describing the measurements of kinematic parameters, e.g. spatial position, velocity and acceleration. To this end we introduce a photogrammetric approach where spatial three- dimensional measurements are extracted from 2D camera images. The principle how a camera models 3D world into 2D image is described with the camera model parameters and the computation of parameters through the camera calibration procedure is presented. Since 3D kinematic systems operates on stereo principle, it requires imaging of the scene with minimum of two cameras and their spatial relationship is given in the form of epipolar geometry. We further turn our focus to the usage of 3D kinematic systems which is frequently defined by certain measurement protocol, tailored to analyzing a specific movement. Several popular alternatives where 3D kinematic system is jointly used with another types of systems are pointed out. Additionally, an inverse dynamic approach is briefly mentioned, allowing a derivation of kinetic data from output of 3D kinematic system. At the very end, several topics related to the research challenges and the anticipated development of 3D reconstruction systems are presented.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo, Kineziologija

POVEZANOST RADA