@InProceedings{Ebner_19_TennisStrokeClassification,
  author    = {Christopher J. Ebner and Rainhard Dieter Findling},
  booktitle = {17th International Conference on Advances in Mobile Computing and Multimedia},
  title     = {Tennis Stroke Classification: Comparing Wrist and Racket as IMU Sensor Position},
  year      = {2019},
  abstract  = {Automatic tennis stroke recognition can help tennis players improve their training experience. Previous work has used sensors positions on both wrist and tennis racket, of which different physiological aspects bring different sensing capabilities. However, no comparison of the performance of both positions has been done yet. In this paper we comparatively assess wrist and racket sensor positions for tennis stroke detection and classification. We investigate detection and classification rates with 8 well-known stroke types and visualize their differences in 3D acceleration and angular velocity. Our stroke detection utilizes a peak detection with thresholding and windowing on the derivative of sensed acceleration, while for our stroke recognition we evaluate different feature sets and classification models. Despite the different physiological aspects of wrist and racket as sensor position, for a controlled environment results indicate similar performance in both stroke detection (98.5\%-99.5\%) and user-dependent and independent classification (89\%-99\%).},
    url_Paper = {http://ambientintelligence.aalto.fi/paper/Tennis_Stroke_Recognition.pdf},
group = {ambience}}

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