PT  - JOURNAL ARTICLE
AU  - Björn Müller
AU  - Winfried Ilg
AU  - Martin A. Giese
AU  - Nicolas Ludolph
TI  - Improved Kinect sensor based motion capturing system for gait assessment
AID  - 10.1101/098863
DP  - 2017 Jan 01
TA  - bioRxiv
PG  - 098863
4099  - http://biorxiv.org/content/early/2017/01/10/098863.short
4100  - http://biorxiv.org/content/early/2017/01/10/098863.full
AB  - Optical motion capturing systems are expensive and require substantial dedicated space to be set up. On the other hand, they provide unsurpassed accuracy and reliability. In many situations however flexibility is required and the motion capturing system can only temporarily be placed. The Microsoft Kinect v2 sensor is comparatively cheap and with respect to gait analysis promising results have been published. We here present a motion capturing system that is easy to set up, flexible with respect to the sensor locations and delivers high accuracy in gait parameters comparable to a gold standard motion capturing system (VICON). Further, we demonstrate that sensor setups which track the person only from one-side are less accurate and should be replaced by two-sided setups. With respect to commonly analyzed gait parameters, especially step width, our system shows higher agreement with the VICON system than previous reports.