Title
Sensor-based Detection and Classification of Soccer Goalkeeper Training Exercises
Abstract
Many goalkeeper trainees cannot afford a personal human coach. Hence, they could benefit from a virtual coach that provides personalized feedback about the execution of their training exercises. As a first step towards this goal, we developed an algorithm to detect and classify goalkeeper training exercises using a wearable inertial sensor attached to a goalkeeper glove. We collected data from 14 goalkeeper trainees while performing a series of training exercises (e.g., dives, catches, throws). Our approach first detects the exercises using an event detection algorithm based on a high-pass filter, a peak detector, and Dynamic Time Warping to detect and eliminate irrelevant motion instances. Then, it extracts a set of statistical and heuristic features to describe the different exercises and train a machine learning classifier. Our exercise detection approach retrieves 93.8% of the relevant exercises with 90.6% precision and classifies the detected exercises with an accuracy of 96.5%. The exercises recognized by our algorithm can be used to compute further qualitative metrics about individual exercise executions to provide goalkeepers with relevant feedback about their training.
Year
DOI
Venue
2020
10.1145/3372342
ACM Transactions on Internet of Things
Keywords
DocType
Volume
Soccer,activity recognition,dynamic time warping,event detection,goalkeeping,machine learning,signal processing,wearable sensor
Journal
1
Issue
ISSN
Citations 
2
2691-1914
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Juan Haladjian1176.75
Daniel Schlabbers200.34
Sajjad Taheri382.86
Max Tharr400.34
Bernd Bruegge500.34