Title
SGCNet: Scale-aware and global contextual network for crowd counting
Abstract
Recently, visual attention mechanisms have been employed in CNN-based crowd counting methods to overcome the interference of background noise and have achieved good performance. However, the existing methods usually focus on designing complex attention structures and extracting pixel-level contextual information, while ignoring global contextual information extraction at different scales. In this paper, to overcome scale variation and complex background noise, we propose a novel scale-aware and global contextual network (SGCNet) that employs multi-scale attention mechanisms to selectively strengthen features with different network scales. The key component of SGCNet is a multi-scale global contextual block that consists of multi-scale feature selection and global contextual information extraction, where global contextual information is adopted as guidance to weight features at different scales. Compared with the previous methods that ignore scale information injected into the attention mechanism, SGCNet achieves better counting performance via multi-scale contextual information extraction. Extensive experiments on four crowd counting datasets (ShanghaiTech, UCF_CC_50, UCF-QNRF, UCSD) demonstrate the effectiveness and superiority of the proposed method in highly congested noisy crowd scenes.
Year
DOI
Venue
2022
10.1007/s10489-022-03230-y
Applied Intelligence
Keywords
DocType
Volume
Crowd counting, Global contextual information, Multi-scale contextual information, Scale variation, Background interference
Journal
52
Issue
ISSN
Citations 
11
0924-669X
0
PageRank 
References 
Authors
0.34
8
6
Name
Order
Citations
PageRank
Liu Qi100.34
Guo Yanqun200.34
Jun Sang34012.62
Tan Jinghan400.34
Wang Fusen500.68
Tian Shaoli600.34