Next-generation low-cost motion capture systems can provide comparable spatial accuracy to high-end systems
Deutscher übersetzter Titel: | Kostengünstige Bewegungserfassungssysteme der nächsten Generation liefern eine vergleichbare dreidimensionale Präzision wie High-End-Systeme |
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Autor: | Thewlis, Dominic; Bishop, Christopher R.; Daniell, Nathan; Paul, Gunther |
Erschienen in: | Journal of applied biomechanics |
Veröffentlicht: | 29 (2013), 1, S. 112-117, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (Datenträger) |
Sprache: | Englisch |
ISSN: | 1065-8483, 1543-2688 |
DOI: | 10.1123/jab.29.1.112 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201310006984 |
Quelle: | BISp |
Abstract
The objective quantification of three-dimensional kinematics during different functional and occupational tasks is now more in demand than ever. The introduction of new generation of low-cost passive motion capture systems from a number of manufacturers has made this technology accessible for teaching, clinical practice and in small/medium industry. Despite the attractive nature of these systems, their accuracy remains unproved in independent tests. We assessed static linear accuracy, dynamic linear accuracy and compared gait kinematics from a Vicon MX-f20 system to a Natural Point OptiTrack system. In all experiments data were sampled simultaneously. We identified both systems perform excellently in linear accuracy tests with absolute errors not exceeding 1%. In gait data there was again strong agreement between the two systems in sagittal and coronal plane kinematics. Transverse plane kinematics differed by up to 3° at the knee and hip, which we attributed to the impact of soft tissue artifact accelerations on the data. We suggest that low-cost systems are comparably accurate to their high-end competitors and offer a platform with accuracy acceptable in research for laboratories with a limited budget. Verf.-Referat