A Unified Taxonomy and Multimodal Dataset for Events in Invasion Games

Publication: Chapter in Book/Report/Conference proceedingConference contribution - Article for conferenceResearchpeer-review

Abstract

The automatic detection of events in complex sports games like soccer and handball using positional or video data is of large interest in research and industry. One requirement is a fundamental understanding of underlying concepts, i.e., events that occur on the pitch. Previous work often deals only with so-called low-level events based on well-defined rules such as free kicks, free throws, or goals. High-level events, such as passes, are less frequently approached due to a lack of consistent definitions. This introduces a level of ambiguity that necessities careful validation when regarding event annotations. Yet, this validation step is usually neglected as the majority of studies adopt annotations from commercial providers on private datasets of unknown quality and focuses on soccer only. To address these issues, we present (1) a universal taxonomy that covers a wide range of low and high-level events for invasion games and is exemplarily refined to soccer and handball, and (2) release two multi-modal datasets comprising video and positional data with gold-standard annotations to foster research in fine-grained and ball-centered event spotting. Experiments on human performance demonstrate the robustness of the proposed taxonomy, and that disagreements and ambiguities in the annotation increase with the complexity of the event. An I3D model for video classification is adopted for event spotting and reveals the potential for benchmarking. Datasets are available at: https://github.com/mm4spa/eigd
Original languageEnglish
Title of host publicationMMSports '21 : Proceedings of the 4th International Workshop on Multimedia Content Analysis in Sports
EditorsRainer Lienhart, Thomas B. Moeslund, Hideo Saito
Number of pages10
Place of PublicationNew York
PublisherThe Association for Computing Machinery
Publication date20.10.2021
Pages1-10
ISBN (Print)978-1-4503-8670-8
DOIs
Publication statusPublished - 20.10.2021
EventInternational Workshop on Multimedia Content Analysis in Sports - Online
Duration: 20.10.202120.10.2021
Conference number: 4

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