Study on Machine Learning Cloud Detection Considering Optimal Selection of Samples

Hui ZHANG; Fangrong ZHOU; Zhen XU; Gang WEN; Yutang MA; Xu HAN; Lei WU

doi:10.3969/j.issn.1009-8518.2024.01.014

Spacecraft Recovery & Remote Sensing, Volume. 45, Issue 1, 161(2024)

Study on Machine Learning Cloud Detection Considering Optimal Selection of Samples

Hui ZHANG1... Fangrong ZHOU2, Zhen XU1, Gang WEN2, Yutang MA2, Xu HAN3,* and Lei WU3 |Show fewer author(s)

Author Affiliations

¹Yunnan Power Grid Co., Ltd., Kunming 650011, China

²Grid Joint Laboratory of Power Remote Sensing Technology, Electric Power Research Institute, Yunnan Power Grid Company Ltd., China Southern Power, Kunming 650217, China

³Suzhou Deep Blue Space Remote Sensing Technology Co., Ltd., Suzhou 215505, China

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Abstract Get PDF(in Chinese)

Figures & Tables(13)

Fig. 1. [in Chinese]

Fig. 2. [in Chinese]

Fig. 3. [in Chinese]

Fig. 4. [in Chinese]

Fig. 5. [in Chinese]

Fig. 6. [in Chinese]

Fig. 7. [in Chinese]

Fig. 8. [in Chinese]

Table 1. AHI Band properties

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Table 1. AHI Band properties

类别	波段序号	中心波长/μm	空间分辨率/km
可见光	01	0.47	1.0
	02	0.51	1.0
	03	0.64	0.5
近红外	04	0.86	1.0
	05	1.60	2.0
	06	2.30	2.0
红外	07	3.90	2.0
	08	6.20	2.0
	09	6.90	2.0
	10	7.30	2.0
	11	8.60	2.0
	12	9.60	2.0
	13	10.40	2.0
	14	11.20	2.0
	15	12.40	2.0
	16	13.30	2.0

Table 2. Table of input features

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Table 2. Table of input features

输入特征	中心波长/μm	解释
albedo03(R₃)	0.64	3波段反照率
albedo04(R₄)	0.86	4波段反照率
albedo05(R₅)	1.60	5波段反照率
albedo06(R₆)	2.30	6波段反照率
tbb07(T₇)	3.90	7波段亮温
tbb10(T₁₀)	7.30	10波段亮温
tbb11(T₁₁)	8.60	11波段亮温
tbb14(T₁₄)	11.20	14波段亮温
tbb15(T₁₅)	12.40	15波段亮温
BTD07(B₇)		14波段与7波段亮温差
BTD10(B₁₀)		14波段与10波段亮温差
BTD11(B₁₁)		14波段与11波段亮温差
BTD15(B₁₅)		14波段与15波段亮温差
Lon		经度
Lat		纬度
SAZ		卫星天顶角
SOZ		太阳天顶角
Mask		物理阈值方法云检测结果

Table 3. Accuracy changes during variable reverse selection
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Table 3. Accuracy changes during variable reverse selection
移除变量云检测精度/% 总分类精度/% 总漏检率/% 总虚检率/%
无 96.41 97.01 2.08 0.91
SAZ 96.40 97.00 2.08 0.92
Lon 96.40 96.99 2.09 0.92
Lat 96.36 96.96 2.11 0.93

Table 4. Accuracy index results
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Table 4. Accuracy index results
名称 ET精度/% RF精度/%
CP 96.41 96.36
TP 97.01 96.95
MP 2.08 2.11
FP 0.91 0.94

Table 5. Comparison of true color images with cloud detection at different moments in time
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Table 5. Comparison of true color images with cloud detection at different moments in time
早8时中午12时晚18时
真彩色影像
云检测结果

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Hui ZHANG, Fangrong ZHOU, Zhen XU, Gang WEN, Yutang MA, Xu HAN, Lei WU. Study on Machine Learning Cloud Detection Considering Optimal Selection of Samples[J]. Spacecraft Recovery & Remote Sensing, 2024, 45(1): 161

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