Paper Info
Title
RT-Seg: A Real-Time Semantic Segmentation Network for Side-Scan Sonar Images.
Abstract
Real-time processing of high-resolution sonar images is of great significance for the autonomy and intelligence of autonomous underwater vehicle (AUV) in complex marine environments. In this paper, we propose a real-time semantic segmentation network termed RT-Seg for Side-Scan Sonar (SSS) images. The proposed architecture is based on a novel encoder-decoder structure, in which the encoder blocks utilized Depth-Wise Separable Convolution and a 2-way branch for improving performance, and a corresponding decoder network is implemented to restore the details of the targets, followed by a pixel-wise classification layer. Moreover, we use patch-wise strategy for splitting the high-resolution image into local patches and applying them to network training. The well-trained model is used for testing high-resolution SSS images produced by sonar sensor in an onboard Graphic Processing Unit (GPU). The experimental results show that RT-Seg can greatly reduce the number of parameters and floating point operations compared to other networks. It runs at 25.67 frames per second on an NVIDIA Jetson AGX Xavier on 500*500 inputs with excellent segmentation result. Further insights on the speed and accuracy trade-off are discussed in this paper.
Year
DOI
Venue
2019
10.3390/s19091985
SENSORS
Keywords
Field
DocType
side-scan sonar (SSS),real-time semantic segmentation,depth-wise separable convolution,patch-wise strategy
Side-scan sonar,Computer vision,Floating point,Segmentation,Convolution,Electronic engineering,Sonar,Encoder,Frame rate,Artificial intelligence,Engineering,Underwater vehicle
Journal
Volume
Issue
ISSN
19
9.0
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Qi Wang17340.49
Meihan Wu200.68
Fei Yu3255.18
Chen Feng4104.12
Kaige Li500.68
Yuemei Zhu600.34
Eric Rigall700.68
Bo He87713.20