Title
Real-time traffic sign detection network using DS-DetNet and lite fusion FPN
Abstract
Traffic sign detection (TSD) using convolutional neural networks (CNN) is promising and intriguing for autonomous driving. Especially, with sophisticated large-scale CNN models, TSD can be performed with high accuracy. However, the conventional CNN models suffer the drawbacks of being time-consuming and resource-hungry, which limit their application and deployments in various platforms of limited resources. In this paper, we propose a novel real-time traffic sign detection system with a lightweight backbone network named Depth Separable DetNet (DS-DetNet) and a lite fusion feature pyramid network (LFFPN) for efficient feature fusion. The new model can achieve a performance trade-off between speed and accuracy using a depthwise separable bottleneck block, a lite fusion module, and an improved SSD detection front-end. The testing results on the MS COCO and the GTSDB datasets reveal that 23.1% mAP with 6.39 M parameters and only 1.08B FLOPs on MSCOCO, 81.35% mAP with 5.78 M parameters on GTSDB. With our model, the run speed is 61 frames per second (fps) on GTX 1080ti, 12 fps on Nvidia Jetson Nano and 16 fps on Nvidia Jetson Xavier NX.
Year
DOI
Venue
2021
10.1007/s11554-021-01102-1
JOURNAL OF REAL-TIME IMAGE PROCESSING
Keywords
DocType
Volume
Object detection, Traffic sign detection, Autonomous driving, Convolutional neural networks, Feature fusion
Journal
18
Issue
ISSN
Citations 
6
1861-8200
1
PageRank 
References 
Authors
0.37
0
5
Name
Order
Citations
PageRank
Kun Ren110.37
Long Huang210.37
Chunqi Fan310.37
Hong-Gui Han447639.06
Hai Deng5211.39