Marine Oil-Spill Detection in Multi-Polarization Image-Based SAR on Improved FCN

Yanling Du; Jianhua Cui; Quanmiao Wei; Dongmei Huang

doi:10.3788/LOP202259.0415005

Laser & Optoelectronics Progress, Volume. 59, Issue 4, 0415005(2022)

Marine Oil-Spill Detection in Multi-Polarization Image-Based SAR on Improved FCN

Yanling Du¹, Jianhua Cui¹, Quanmiao Wei², and Dongmei Huang^3、*

Author Affiliations

¹College of Information Technology, Shanghai Ocean University, Shanghai 201306, China

²East China Sea Bureau of Ministry of Natural Resources, Shanghai 200136, China

³Shanghai University of Electric Power, Shanghai 200090, China

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Figures & Tables(11)

Fig. 1. Intelligent detection framework of Pol-SAR image based on improved FCN

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Fig. 2. Comparison of oil spill area detection under different polarization modes

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Fig. 3. Comparison of oil spill detections of two polarimetric fusion SAR images. (a) HH-VV; (b) HH-HV; (c) HH-VH; (d) HV-VH; (e) HV-VV; (f) VH-VV

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Fig. 4. Oil spill results of three-polarimetric fusion and full-polarimetric fusion. (a) HH-HV-VH; (b) HH-HV-VV; (c) HH-VH-VV; (d) HV-VH-VV; (e) HH-VV-HV-VH

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Fig. 5. Results of oil spill area detected by different methods. (a) Original imags; (b) labeled imags; (c) FCN; (d) UNet; (e) Improved FCN

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Table 1. Information on the RadarSAT-2 SAR image used in this study

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Table 1. Information on the RadarSAT-2 SAR image used in this study

Parameter	Single look complex（SLC）
Start time	2011-06-17T11∶48∶20
Beam mode	FQ25
Polarization	HH，VV，HV，VH
Look direction	Right
Pixel spacing /（m×m）	4.73×5.05
Incidence angle	4.36E1-4.49E1
Covered area /（km×km）	37.17×19.34

Table 2. Detection result comparison of oil spill after Pol-SAR image preprocessing

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Table 2. Detection result comparison of oil spill after Pol-SAR image preprocessing

Polarization	Index	Original image	Pauli decomposition	Pauli decomposition +Refined-Lee （3×3）	Pauli decomposition +Refined-Lee （5×5）	Pauli decomposition +Refined-Lee （7×7）
VV	PA	0.917	0.927	0.934	0.921	0.920
VV	MA	0.896	0.901	0.922	0.916	0.913
HH	PA	0.905	0.916	0.927	0.923	0.919
HH	MA	0.868	0.905	0.911	0.906	0.898

Table 3. Comparison of oil spill detection accuracy of two polarimetric fusion SAR images
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Table 3. Comparison of oil spill detection accuracy of two polarimetric fusion SAR images
Index HH-VV HH-HV HH-VH HV-VH HV-VV VH-VV
PA 0.952 0.939 0.942 0.505 0.922 0.951
MA 0.927 0.893 0.916 0.516 0.931 0.917

Table 4. Comparison of oil spill detection accuracy of three-polarimetric fusion and full-polarimetric fusion
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Table 4. Comparison of oil spill detection accuracy of three-polarimetric fusion and full-polarimetric fusion
Index HH-HV-VH HH-HV-VV HH-VH-VV HV-VH-VV HH-VV-HV-VH
PA 0.942 0.913 0.945 0.949 0.957
MA 0.906 0.922 0.919 0.890 0.930

Table 5. Accuracy of fully polarized oil spill detection in different regions
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Table 5. Accuracy of fully polarized oil spill detection in different regions
Index （a）（b）（c）（d）
PA 0.953 0.947 0.941 0.950
MA 0.926 0.922 0.914 0.921

Table 6. Oil spill detection accuracy in different regions
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Table 6. Oil spill detection accuracy in different regions
Area Evaluation index FCN UNet Improved FCN
Area 1 PA 0.891 0.913 0.948
MA 0.834 0.865 0.927
Area 2 PA 0.866 0.905 0.953
MA 0.852 0.885 0.934
Area 3 PA 0.884 0.916 0.941
MA 0.835 0.898 0.935
Area 4 PA 0.863 0.927 0.936
MA 0.815 0.905 0.911

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Yanling Du, Jianhua Cui, Quanmiao Wei, Dongmei Huang. Marine Oil-Spill Detection in Multi-Polarization Image-Based SAR on Improved FCN[J]. Laser & Optoelectronics Progress, 2022, 59(4): 0415005

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Paper Information

Category: Machine Vision

Received: Mar. 22, 2021

Accepted: Apr. 14, 2021

Published Online: Feb. 15, 2022

The Author Email: Dongmei Huang (dmhuang@shou.edu.cn)

DOI:10.3788/LOP202259.0415005

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Information on the RadarSAT-2 SAR image used in this study

Table 1. Information on the RadarSAT-2 SAR image used in this study

Table 2. Detection result comparison of oil spill after Pol-SAR image preprocessing

Table 2. Detection result comparison of oil spill after Pol-SAR image preprocessing

Table 3. Comparison of oil spill detection accuracy of two polarimetric fusion SAR images

Table 3. Comparison of oil spill detection accuracy of two polarimetric fusion SAR images

Table 4. Comparison of oil spill detection accuracy of three-polarimetric fusion and full-polarimetric fusion

Table 4. Comparison of oil spill detection accuracy of three-polarimetric fusion and full-polarimetric fusion

Table 5. Accuracy of fully polarized oil spill detection in different regions

Table 5. Accuracy of fully polarized oil spill detection in different regions

Table 6. Oil spill detection accuracy in different regions

Table 6. Oil spill detection accuracy in different regions