1 Mobility and Tracking Technologies, The Technical Faculty of IT and Design, Aalborg University, VBN2 Department of Architecture, Design and Media Technology, The Technical Faculty of IT and Design, Aalborg University, VBN3 Media Technology, The Technical Faculty of IT and Design, Aalborg University, VBN4 Visual Analysis of People Laboratory, The Technical Faculty of IT and Design, Aalborg University, VBN5 The Faculty of Engineering and Science (TECH), Aalborg University, VBN6 Aalborg U Robotics, The Faculty of Humanities, Aalborg University, VBN
Automatic classification of activities in a sports arena is important in order to analyse and optimise the use of the arenas. In this work we classify five sports types based only on occupancy heatmaps produced from position data. Due to privacy issues we use thermal imaging for detecting people and then calculate their positions on the court us- ing homography. Heatmaps are produced by summarising Gaussian distributions respresenting people over 10-minute periods. Before classification the heatmaps are projected to a low-dimensional discriminative space using the principle of Fisherfaces. Our result using two weeks of video are very promising with a correct classification of 90.76 %.
Ieee Conference on Computer Vision and Pattern Recognition (cvpr), 2013, p. 999-1004
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I E E E Conference on Computer Vision and Pattern Recognition. Proceedings
2013 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2013