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Improving Human Action Recognition by Non-action Classification

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arxiv 1604.06397 v2 pith:IPYXDM3Z submitted 2016-04-21 cs.CV

Improving Human Action Recognition by Non-action Classification

classification cs.CV
keywords non-actionhumanactionclassifiervideoactionsirrelevantrecognition
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In this paper we consider the task of recognizing human actions in realistic video where human actions are dominated by irrelevant factors. We first study the benefits of removing non-action video segments, which are the ones that do not portray any human action. We then learn a non-action classifier and use it to down-weight irrelevant video segments. The non-action classifier is trained using ActionThread, a dataset with shot-level annotation for the occurrence or absence of a human action. The non-action classifier can be used to identify non-action shots with high precision and subsequently used to improve the performance of action recognition systems.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Leveraging Vision-Language Large Models for Interpretable Video Action Recognition with Semantic Tokenization

    cs.CV 2025-09 reject novelty 3.0

    LVLM-VAR transforms video into 'semantic action tokens' and uses a LoRA-tuned vision-language model to classify actions and generate explanations, reporting 94.1% on NTU RGB+D X-Sub.