Title
Fast Multi-Shadow Tracking for Video-SAR Using Triplet Attention Mechanism
Abstract
This article extends the shadow tracking for video-synthetic aperture radar (SAR) from a single-target framework to a multitarget framework, which is crucial for SAR ground moving targets' identification. Inspired by FairMOT, the multitarget tracking framework for SAR shadow tracking is improved by using the triplet attention (TriAtt) mechanism and the lightweight multiscale network. By employing the ability to fuse spatial and feature dimensions of TriAtt and combining the lightweight network optimized by multiscale encoder-decoder and dilated convolution, a fast multiscale feature extraction module (FMsFEM) embedded with TriAtt is proposed for better tracking efficiency and performance. Experiments on the Sandiego video-SAR dataset validate that the TriAtt mechanism can improve the tracking performance of deep layer aggregation (DLA)-34, DLA-18, and FMsFEM significantly. FMsFEM with embedded TriAtt outperforms the state-of-the-art network (FairMOT with backbones of DLA-34 and DLA-18) with much faster frame rates. The average frame rates of FMsFEM and FMsFEM-TriAtt reach 60.32 and 56.13 fps for datasets with an image size of 1088 x 608, which are about three times higher than the frame rates of others.
Year
DOI
Venue
2022
10.1109/TGRS.2022.3152556
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Keywords
DocType
Volume
Deep neural network, multishadow tracking, triplet attention (TriAtt), video-synthetic aperture radar (SAR)
Journal
60
ISSN
Citations 
PageRank 
0196-2892
0
0.34
References 
Authors
0
8
Name
Order
Citations
PageRank
Xiaqing Yang104.73
Jun Shi2111.52
Tingjun Chen300.34
Yao Hu44317.26
Yuanyuan Zhou505.07
Xiaoling Zhang6512.90
Shunjun Wei7317.63
Junjie Wu811136.06