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

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 4 >Page 0415005 > Article

Laser & Optoelectronics Progress
Vol. 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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DOI: 10.3788/LOP202259.0415005 Cite this Article Set citation alerts

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 Copy Citation Text

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

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

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

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

Index	（a）	（b）	（c）	（d）
PA	0.953	0.947	0.941	0.950
MA	0.926	0.922	0.914	0.921

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

Area	Evaluation index	FCN	UNet	Improved FCN
Area 1	PA	0.891	0.913	0.948
Area 1	MA	0.834	0.865	0.927
Area 2	PA	0.866	0.905	0.953
Area 2	MA	0.852	0.885	0.934
Area 3	PA	0.884	0.916	0.941
Area 3	MA	0.835	0.898	0.935
Area 4	PA	0.863	0.927	0.936
Area 4	MA	0.815	0.905	0.911

Table 6. Oil spill detection accuracy in different regions

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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