A Framework for the Analysis of Biomechanical Loading Using Human Motion Tracking

Vox, Jan P.; Wallhoff, Frank

doi:10.1109/iri.2019.00020

Cited by 1 publication

(1 citation statement)

References 9 publications

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“…First the vector lengths between hip and ankle, knee and ankle and hip and knee—or

and

—need to be calculated using Equation ( 1 ). Subsequently, the angle

in position a and thereby the flexion in the knee joint can be determined using Equation ( 2 ) [ 27 , 28 ].

…”

Section: Data Processingmentioning

confidence: 99%

An Evaluation of Motion Trackers with Virtual Reality Sensor Technology in Comparison to a Marker-Based Motion Capture System Based on Joint Angles for Ergonomic Risk Assessment

Vox

Weber

Wolf

et al. 2021

Sensors

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The reproduction and simulation of workplaces, and the analysis of body postures during work processes, are parts of ergonomic risk assessments. A commercial virtual reality (VR) system offers the possibility to model complex work scenarios as virtual mock-ups and to evaluate their ergonomic designs by analyzing motion behavior while performing work processes. In this study a VR tracking sensor system (HTC Vive tracker) combined with an inverse kinematic model (Final IK) was compared with a marker-based optical motion capture system (Qualisys). Marker-based optical motion capture systems are considered the gold standard for motion analysis. Therefore, Qualisys was used as the ground truth in this study. The research question to be answered was how accurately the HTC Vive System combined with Final IK can measure joint angles used for ergonomic evaluation. Twenty-six subjects were observed simultaneously with both tracking systems while performing 20 defined movements. Sixteen joint angles were analyzed. Joint angle deviations between ±6∘ and ±42∘ were identified. These high deviations must be considered in ergonomic risk assessments when using a VR system. The results show that commercial low-budget tracking systems have the potential to map joint angles. Nevertheless, substantial weaknesses and inaccuracies in some body regions must be taken into account. Recommendations are provided to improve tracking accuracy and avoid systematic errors.

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“…First the vector lengths between hip and ankle, knee and ankle and hip and knee—or

and

—need to be calculated using Equation ( 1 ). Subsequently, the angle

in position a and thereby the flexion in the knee joint can be determined using Equation ( 2 ) [ 27 , 28 ].

…”

Section: Data Processingmentioning

confidence: 99%

An Evaluation of Motion Trackers with Virtual Reality Sensor Technology in Comparison to a Marker-Based Motion Capture System Based on Joint Angles for Ergonomic Risk Assessment

Vox

Weber

Wolf

et al. 2021

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

A Framework for the Analysis of Biomechanical Loading Using Human Motion Tracking

Cited by 1 publication

References 9 publications

An Evaluation of Motion Trackers with Virtual Reality Sensor Technology in Comparison to a Marker-Based Motion Capture System Based on Joint Angles for Ergonomic Risk Assessment

An Evaluation of Motion Trackers with Virtual Reality Sensor Technology in Comparison to a Marker-Based Motion Capture System Based on Joint Angles for Ergonomic Risk Assessment

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