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Action Localization

11 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.

ACTION LOCALIZATION ACTION RECOGNITION 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 ACTION LOCALIZATION TEMPORAL LOCALIZATION

HACS: Human Action Clips and Segments Dataset for Recognition and Temporal Localization

26 Dec 2017hangzhaomit/HACS-dataset

On HACS Segments, we evaluate state-of-the-art methods of action proposal generation and action localization, and highlight the new challenges posed by our dense and fine-grained temporal annotations.

ACTION CLASSIFICATION ACTION LOCALIZATION ACTION RECOGNITION TEMPORAL LOCALIZATION TRANSFER LEARNING

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.

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.

ACTION LOCALIZATION

Hide-and-Seek: Forcing a Network to be Meticulous for Weakly-supervised Object and Action Localization

ICCV 2017 zhengshou/AutoLoc

We propose `Hide-and-Seek', a weakly-supervised framework that aims to improve object localization in images and action localization in videos.

ACTION LOCALIZATION WEAKLY-SUPERVISED OBJECT 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.

ACTION LOCALIZATION ACTION RECOGNITION TEMPORAL LOCALIZATION

Weakly Supervised Action Localization by Sparse Temporal Pooling Network

CVPR 2018 demianzhang/weakly-action-localization

We propose a weakly supervised temporal action localization algorithm on untrimmed videos using convolutional neural networks.

ACTION CLASSIFICATION ACTION LOCALIZATION TEMPORAL LOCALIZATION

Guess Where? Actor-Supervision for Spatiotemporal Action Localization

5 Apr 2018escorciav/roi_pooling

Second, we propose an actor-based attention mechanism that enables the localization of the actions from action class labels and actor proposals and is end-to-end trainable.

ACTION LOCALIZATION