Title
Memory Attention Networks for Skeleton-Based Action Recognition
Abstract
Skeleton-based action recognition has been extensively studied, but it remains an unsolved problem because of the complex variations of skeleton joints in 3-D spatiotemporal space. To handle this issue, we propose a newly temporal-then-spatial recalibration method named memory attention networks (MANs) and deploy MANs using the temporal attention recalibration module (TARM) and spatiotemporal convolution module (STCM). In the TARM, a novel temporal attention mechanism is built based on residual learning to recalibrate frames of skeleton data temporally. In the STCM, the recalibrated sequence is transformed or encoded as the input of CNNs to further model the spatiotemporal information of skeleton sequence. Based on MANs, a new collaborative memory fusion module (CMFM) is proposed to further improve the efficiency, leading to the collaborative MANs (C-MANs), trained with two streams of base MANs. TARM, STCM, and CMFM form a single network seamlessly and enable the whole network to be trained in an end-to-end fashion. Comparing with the state-of-the-art methods, MANs and C-MANs improve the performance significantly and achieve the best results on six data sets for action recognition. The source code has been made publicly available at <uri xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">https://github.com/memory-attention-networks</uri> .
Year
DOI
Venue
2022
10.1109/TNNLS.2021.3061115
IEEE Transactions on Neural Networks and Learning Systems
Keywords
DocType
Volume
Neural Networks, Computer,Skeleton
Journal
33
Issue
ISSN
Citations 
9
2162-237X
1
PageRank 
References 
Authors
0.35
15
6
Name
Order
Citations
PageRank
Ce Li1569.28
Chunyu Xie2535.27
Baochang Zhang3113093.76
Jungong Han41785117.64
Xiantong Zhen551336.54
Jie Chen639265.58