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Action Localization

20 papers with code · Computer Vision

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AVA: A Video Dataset of Spatio-temporally Localized Atomic Visual Actions

CVPR 2018 tensorflow/models

The AVA dataset densely annotates 80 atomic visual actions in 430 15-minute video clips, where actions are localized in space and time, resulting in 1. 58M action labels with multiple labels per person occurring frequently.

TEMPORAL ACTION LOCALIZATION VIDEO UNDERSTANDING

Temporal Action Localization in Untrimmed Videos via Multi-stage CNNs

CVPR 2016 zhengshou/scnn

To address this challenging issue, we exploit the effectiveness of deep networks in temporal action localization via three segment-based 3D ConvNets: (1) a proposal network identifies candidate segments in a long video that may contain actions; (2) a classification network learns one-vs-all action classification model to serve as initialization for the localization network; and (3) a localization network fine-tunes on the learned classification network to localize each action instance.

ACTION CLASSIFICATION TEMPORAL ACTION LOCALIZATION TEMPORAL LOCALIZATION

Graph Convolutional Networks for Temporal Action Localization

ICCV 2019 Alvin-Zeng/PGCN

Then we apply the GCNs over the graph to model the relations among different proposals and learn powerful representations for the action classification and localization.

ACTION CLASSIFICATION TEMPORAL ACTION LOCALIZATION

TURN TAP: Temporal Unit Regression Network for Temporal Action Proposals

ICCV 2017 jiyanggao/TURN-TAP

Temporal Action Proposal (TAP) generation is an important problem, as fast and accurate extraction of semantically important (e. g. human actions) segments from untrimmed videos is an important step for large-scale video analysis.

REGRESSION TEMPORAL ACTION LOCALIZATION

AutoLoc: Weakly-supervised Temporal Action Localization

22 Jul 2018zhengshou/AutoLoc

In this paper, we first develop a novel weakly-supervised TAL framework called AutoLoc to directly predict the temporal boundary of each action instance.

WEAKLY-SUPERVISED TEMPORAL ACTION LOCALIZATION

Temporal Localization of Fine-Grained Actions in Videos by Domain Transfer from Web Images

4 Apr 2015zhengshou/AutoLoc

To solve this problem, we propose a simple yet effective method that takes weak video labels and noisy image labels as input, and generates localized action frames as output.

TEMPORAL ACTION LOCALIZATION TEMPORAL LOCALIZATION

Completeness Modeling and Context Separation for Weakly Supervised Temporal Action Localization

CVPR 2019 Finspire13/CMCS-Temporal-Action-Localization

In this work, we first identify two underexplored problems posed by the weak supervision for temporal action localization, namely action completeness modeling and action-context separation.

WEAKLY SUPERVISED ACTION LOCALIZATION WEAKLY-SUPERVISED TEMPORAL ACTION LOCALIZATION