Author

Bo Zhou, Harald Koerger, Markus Wirth, Constantin Zwick, Christine Martindale, Heber Cruz, Bjoern Eskofier, Paul Lukowicz

Abstract

In this paper we present a smart soccer shoe that uses textile pressure sensing matrices to detect and analyze the interaction between players’ foot and the ball. We describe the sensor system that consists of two 3 ⇥ 4 and one 3 ⇥ 3 matrices sampled at over 500Hz with low power electronics that allows continuous operation (incl. wireless transmission) for 8 hours using a small 800mA/h Li-Po battery. We show how relevant parameters for shot analysis such as contact speed and contact angles can be reliably derived from the sensor signals. To en- sure reliable ground truth we evaluated the system with a kick robot in the adidas testing facility, which is the standard ap- proach used by adidas to systematically and quantitatively test new shoes and balls. The test encompasses 17 different types of shots and achieves a near 100% classification accuracy/F- score. The system endured extreme levels of impact resulting in over 100km/hr ball speed.   [Download]

BibTex

@inproceedings {Zhou:Smart:2016:8891,
	number = {}, 
	month = {}, 
	year = {2016}, 
	title = {Smart soccer shoe: monitoring foot-ball interaction with shoe integrated textile pressure sensor matrix}, 
	journal = {}, 
	volume = {}, 
	pages = {64-71}, 
	publisher = {ACM}, 
	author = {Bo Zhou, Harald Koerger, Markus Wirth, Constantin Zwick, Christine Martindale, Heber Cruz, Bjoern Eskofier, Paul Lukowicz}, 
	keywords = {wearable system; smart textiles; pressure mapping; digital sport; soccer shoe; activity recognition}
}