Learning Visual Actions Using Multiple Verb-Only Labels

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Abstract

This work introduces verb-only representations for both recognition and retrieval of visual actions, in video. Current methods neglect legitimate semantic ambiguities between verbs, instead choosing unambiguous subsets of verbs along with objects to disambiguate the actions. We instead propose multiple verb-only labels, which we learn through hard or soft assignment as a regression. This enables learning a much larger vocabulary of verbs, including contextual overlaps of these verbs. We collect multi-verb annotations for three action video datasets and evaluate the verb-only labelling representations for action recognition and cross-modal retrieval (video-to-text and text-to-video).
We demonstrate that multi-label verb-only representations outperform conventional single verb labels. We also explore other benefits of a multi-verb representation including cross-dataset retrieval and verb type (manner and result verb types) retrieval.
Original languageEnglish
Number of pages14
Publication statusPublished - 12 Sep 2019
Event30th British Machine Vision Conference - Cariff, United Kingdom
Duration: 9 Sep 201912 Sep 2019
Conference number: 30
https://bmvc2019.org/

Conference

Conference30th British Machine Vision Conference
Abbreviated titleBMVC
CountryUnited Kingdom
CityCariff
Period9/09/1912/09/19
Internet address

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