Fusion of Domestic High Resolution Synthetic Aperture Radar and Optical Images Based on Regional IHS_NSST

Mingwei Xiao; Sumin Li; Yan Li

doi:10.3788/LOP57.181013

Laser & Optoelectronics Progress, Volume. 57, Issue 18, 181013(2020)

Fusion of Domestic High Resolution Synthetic Aperture Radar and Optical Images Based on Regional IHS_NSST

Mingwei Xiao^1、*, Sumin Li^1,2, and Yan Li³

Author Affiliations

¹Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China

²Surveying and Mapping Geo-Informatics Technology Research Center on Plateau Mountains of Yunnan Higher Education, Kunming, Yunnan 650093, China

³Comprehensive Research Institute of Science, Technology and Industry for National Defense of Yunnan Province, Kunming, Yunnan 650200, China

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Figures & Tables(10)

Fig. 1. GF 1, GF 2, and GF 3 images after processing. (a) GF-2 image of 4,2, and 1 bands; (b) GF-3 SL mode image; (c) GF-2 image of 4,3, and 2 bands; (d) GF-3 FSI mode image

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Fig. 2. Simplified PCNN neuron model

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Fig. 3. Flowchart of image fusion

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Fig. 4. Fusion images of GF-2 and GF-3. (a) IHS transform; (b) Wavelet transform; (c) NSCT; (d) NSST; (e) NSCT-PCNN; (f) proposed method

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Fig. 5. Fusion images of GF-1 and GF-3. (a) IHS transform; (b) Wavelet transform; (c) NSCT; (d) NSST; (e) NSCT-PCNN; (f) proposed method

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Table 1. Optical and SAR image information
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Table 1. Optical and SAR image information
Group Satellite Sensor type Imaging mode Resolution /m Date
Group 1 GF-3 SAR SL 1 2018-08-15
GF-2 PMS2 MS 4 2019-01-23
Group 2 GF-3 SAR FSI 5 2019-05-01
GF-1 PMS2 MS 8 2019-01-27

Table 2. O_IF values of different band combinations
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Table 2. O_IF values of different band combinations
Band combination 3,2, and 1 bands 4,2, and 1 bands 4,3, and 1 bands 4,3, and 2 bands
O_IF of GF-2 71.3769 214.0087 198.9660 213.4390
O_IF of GF-1 104.7353 154.7772 152.1966 163.7494

Table 3. E_PI values of filtering methods
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Table 3. E_PI values of filtering methods
Filtering method Mean Frost Lee Gamma map Enhanced Lee
E_PI of SL mode 0.1862 0.466 0.5023 0.5104 0.5251
E_PI of FSI mode 0.1825 0.3381 0.2558 0.4027 0.5176

Table 4. Quantitative evaluation results of different fusion methods (GF-2 and GF-3)

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Table 4. Quantitative evaluation results of different fusion methods (GF-2 and GF-3)

Fusion method	A_G	S_D	I_E	C_C	S_DD	Time /s
IHS	93.7624	55.9293	7.5671	0.6348	42.8493	20.7
Wavelet transform	105.0308	40.4475	7.3088	0.8391	30.7830	30.5
NSCT	103.7831	57.8753	7.6641	0.8079	31.0869	753.4
NSST	103.7965	58.0005	7.6659	0.8113	30.8934	456.9
NSCT-PCNN	104.2995	57.3602	7.6861	0.8960	24.3363	1179.3
Proposed method	120.0486	64.3144	7.7680	0.9294	18.9574	572.5

Table 5. Quantitative evaluation results of different fusion methods (GF-1 and GF-3)

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Table 5. Quantitative evaluation results of different fusion methods (GF-1 and GF-3)

Fusion method	A_G	S_D	I_E	C_C	S_DD	Time /s
IHS	68.8261	64.8363	6.9813	0.4344	63.0301	19.3
Wavelet transform	80.5460	48.7987	7.4244	0.8043	34.2976	28.5
NSCT	79.4644	62.8277	7.5398	0.6500	47.5127	720.9
NSST	79.4711	62.8792	7.5411	0.6521	47.4156	423.4
NSCT-PCNN	80.1714	59.5545	7.5788	0.8137	34.2976	1008.4
Proposed method	99.5804	68.7449	7.7608	0.8571	27.8162	524.7

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Mingwei Xiao, Sumin Li, Yan Li. Fusion of Domestic High Resolution Synthetic Aperture Radar and Optical Images Based on Regional IHS_NSST[J]. Laser & Optoelectronics Progress, 2020, 57(18): 181013

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