Sport Task: Fine Grained Action Detection and Classification of Table Tennis Strokes from Videos for MediaEval 2022
This work addresses the need for automated performance evaluation tools for coaches and athletes in table tennis, but it is incremental as it builds on prior benchmarking efforts.
The paper tackles the problem of detecting and classifying fine-grained table tennis strokes from untrimmed videos, as part of the MediaEval 2022 benchmarking initiative, by enhancing datasets to ensure all strokes are represented and providing tools for coaches and athletes.
Sports video analysis is a widespread research topic. Its applications are very diverse, like events detection during a match, video summary, or fine-grained movement analysis of athletes. As part of the MediaEval 2022 benchmarking initiative, this task aims at detecting and classifying subtle movements from sport videos. We focus on recordings of table tennis matches. Conducted since 2019, this task provides a classification challenge from untrimmed videos recorded under natural conditions with known temporal boundaries for each stroke. Since 2021, the task also provides a stroke detection challenge from unannotated, untrimmed videos. This year, the training, validation, and test sets are enhanced to ensure that all strokes are represented in each dataset. The dataset is now similar to the one used in [1, 2]. This research is intended to build tools for coaches and athletes who want to further evaluate their sport performances.