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A Novel Technology for Motion Capture Using Passive UHF RFID Tags

By Rasmus Krigslund, Petar Popovski, Gert Frølund Pedersen, Jakob Lund Dideriksen, Dario Farina and Strahinja Dosen

Abstract

Although there are several existing methods for human motion capture, they all have important limitations and hence there is the need to explore fundamentally new approaches. Here we present a method based on a Radio Frequency IDentification (RFID) system with passive Ultra High Frequency (UHF) tags placed on the body segments whose kinematics is to be captured. Dual polarized antennas are used to estimate the inclination of each tag based on the polarization of the tag responses. The method has been validated experimentally for the shank and thigh in the sagittal plane during treadmill walking. The reference joint angles for the validation were obtained by an optoelectronic system. Although the method is in its initial phase of development, the results of the validation are promising and show that the movement information can be extracted from the RFID response signals

Publisher: 'Institute of Electrical and Electronics Engineers (IEEE)'
Year: 2013
DOI identifier: 10.1109/TBME.2012.2209649
OAI identifier: oai:pure.atira.dk:publications/68603f7b-62d7-42d5-9b0d-8643a48b192c
Provided by: VBN

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