GLNet: Global Local Network for Weakly Supervised Action Localization
GLNet: Global Local Network for Weakly Supervised Action Localization
复制标题
GLNet:弱监督动作本地化的全球局部网络
DOI:
10.1109/tmm.2019.2959425
复制
发表时间:
2020-10
影响因子:
7.3
通讯作者:
Nong Sang
中科院分区:
文献类型:
--
作者:
Shiwei Zhang;Lin Song;Changxin Gao;Nong Sang
In this paper, we address the challenging problem of weakly supervised spatio-temporal action localization for which only video-level action labels are available during training. To solve this problem, we propose an end-to-end Global Local Network (GLNet) to predict the probability distribution simultaneously in both spatial and temporal space. The proposed GLNet model includes two key components: a local spatial module and a global temporal module. The local spatial module aims to predict the frame-level spatial distribution by encoding short-term temporal information. In particular, we propose a Region Actionness Network (RAN) to select the target region boxes from the precomputed exhaustive proposals. The global temporal module can predict temporal distribution by a long-term temporal structure modelling. Specifically, we design a temporal fusion-and-excitation architecture on the top of several clips, and trained by a sparse loss function. Therefore, the proposed GLNet model can perform spatio-temporal action localization in an end-to-end manner. We evaluate the performance of GLNet on the J-HMDB and UCF101-24 datasets. The experimental results demonstrate GLNet achieves a significant margin against other state-of-the-art weakly supervised methods and even some fully supervised methods in terms of frame mean Average Precision (mAP) and the video mAP (called frame-mAP and video-mAP, respectively).
登录
查看更多内容
DOI:
10.1109/iccv.2017.473
发表时间:
2017-04
期刊:
2017 IEEE International Conference on Computer Vision (ICCV)
影响因子:
--
作者:
Suman Saha;Gurkirt Singh;Fabio Cuzzolin
通讯作者:
Suman Saha;Gurkirt Singh;Fabio Cuzzolin
DOI:
10.1109/iccv.2017.82
发表时间:
2017-10
期刊:
2017 IEEE International Conference on Computer Vision (ICCV)
影响因子:
--
作者:
K. Soomro;M. Shah
通讯作者:
K. Soomro;M. Shah
DOI:
10.1109/iccv.2017.476
发表时间:
2017-07
期刊:
2017 IEEE International Conference on Computer Vision (ICCV)
影响因子:
--
作者:
P. Mettes;Cees G. M. Snoek
通讯作者:
P. Mettes;Cees G. M. Snoek
DOI:
10.1109/tpami.2012.28
发表时间:
2012-11-01
影响因子:
23.6
作者:
Alexe, Bogdan;Deselaers, Thomas;Ferrari, Vittorio
通讯作者:
Ferrari, Vittorio
影响因子:
7.3
作者:
Thanh-Toan Do;Tuan Hoang;Victor Pomponiu;Yiren Zhou;Zhao Chen;Ngai-Man Cheung;D. Koh;Aaron Tan
通讯作者:
Thanh-Toan Do;Tuan Hoang;Victor Pomponiu;Yiren Zhou;Zhao Chen;Ngai-Man Cheung;D. Koh;Aaron Tan