A New Method for Direct Measurement of Land Surface Reflectance With UAV-Based Multispectral Cameras

Hua-sheng SUN; Yuan ZHANG; Yun-fei SHI; Min ZHAO

doi:10.3964/j.issn.1000-0593(2022)05-1581-07

Spectroscopy and Spectral Analysis, Volume. 42, Issue 5, 1581(2022)

A New Method for Direct Measurement of Land Surface Reflectance With UAV-Based Multispectral Cameras

Hua-sheng SUN1,*... Yuan ZHANG2,2; *;, Yun-fei SHI1,1; and Min ZHAO1,1; |Show fewer author(s)

¹1. Shandong Provincial Key Laboratory of Soil and Water Conservation and Environmental Protection, School of Resources and Environment, Linyi University, Linyi 276000, China

²2. Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences & Institute of Eco-Chongming, East China Normal University, Shanghai 200241, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(7)

Fig. 1. DJI Phantom 4 RTK multispectral UAV and its imaging system

Download full size

View in Article

Fig. 2. The black, gray and white reference panels and their hyperspectral test results

Download full size

View in Article

Fig. 3. Measured solar irradiance (E_m) by sensor and calculated the irradiance reaching ground (E_g)
(a): 2020-7-20 14:51—15:07 E_m; (b): 2020-7-20 14:51—15:07 E_g; (c): 2020-9-23 16:08—16:24 E_m;(d): 2020-9-23 16:08—16:24 E_g; (e): 2020-11-13 13:37—13:53 E_m; (f): 2020-11-13 13:37—13:53 E_g;(g): 2020-11-29 13:52—14:09 E_m; (h): 2020-11-29 13:52—14:09 E_g

Download full size

View in Article

Table 1. Sensor parameters of DJI Phantom 4 RTK multispectral UAV
View table
View in Article
Table 1. Sensor parameters of DJI Phantom 4 RTK multispectral UAV
波段波长范围/nm
蓝(B) 450±16
绿(G) 560±16
红(R) 650±16
红边(RE) 730±16
近红外(NIR) 840±26

Table 2. Average reflectances of the reference panels measured by a hyper spectrometer
View table
View in Article
Table 2. Average reflectances of the reference panels measured by a hyper spectrometer
参考板波段
蓝(B) 绿(G) 红(R) 红边
(RE) 近红外
(NIR)
黑 7.07% 6.39% 6.00% 5.91% 6.10%
灰 25.69% 24.71% 23.48% 23.53% 23.79%
白 85.52% 81.48% 80.61% 81.73% 80.54%

Table 3. Direct solar irradiance proportion (p) of each band during the image collection period

View table

View in Article

Table 3. Direct solar irradiance proportion (p) of each band during the image collection period

航拍日期	波段
航拍日期	蓝(B)	绿(G)	红(R)	红边 (RE)	近红外 (NIR)
2020/7/20	84.57%	89.33%	89.24%	85.73%	82.90%
2020/9/23	31.41%	33.60%	34.54%	34.31%	34.07%
2020/11/13	76.07%	78.80%	83.78%	87.66%	90.74%
2020/11/29	63.25%	65.41%	70.58%	75.08%	78.78%

Table 4. Average reflectances of the reference panels derived from the UAV-based multispectral images

View table

View in Article

Table 4. Average reflectances of the reference panels derived from the UAV-based multispectral images

航拍日期		波段
航拍日期		蓝(B)	绿(G)	红(R)	红边 (RE)	近红外 (NIR)
	黑	5.71%	5.58%	5.67%	6.08%	7.01%
2020-7-20	灰	20.79%	22.67%	21.55%	21.82%	22.30%
	白	80.50%	82.18%	82.98%	85.79%	82.61%
	黑	6.29%	5.78%	6.02%	6.52%	7.40%
2020-9-23	灰	21.83%	21.75%	20.98%	21.75%	21.76%
	白	81.17%	79.37%	79.91%	81.97%	78.22%
	黑	6.93%	7.37%	7.21%	7.68%	8.09%
2020-11-13	灰	21.88%	22.33%	22.33%	23.12%	22.55%
	白	78.96%	80.33%	82.99%	85.79%	83.19%
	黑	6.45%	6.41%	6.73%	6.88%	7.24%
2020-11-29	灰	22.20%	23.47%	23.44%	23.55%	23.03%
	白	80.26%	82.76%	84.62%	87.58%	82.26%

Tools

Get Citation

Copy Citation Text

Hua-sheng SUN, Yuan ZHANG, Yun-fei SHI, Min ZHAO. A New Method for Direct Measurement of Land Surface Reflectance With UAV-Based Multispectral Cameras[J]. Spectroscopy and Spectral Analysis, 2022, 42(5): 1581

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Research Articles

Received: Apr. 7, 2021

Accepted: --

Published Online: Nov. 10, 2022

The Author Email: SUN Hua-sheng (sunhuasheng@126.com)

DOI:10.3964/j.issn.1000-0593(2022)05-1581-07

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Sensor parameters of DJI Phantom 4 RTK multispectral UAV

Table 1. Sensor parameters of DJI Phantom 4 RTK multispectral UAV

Table 2. Average reflectances of the reference panels measured by a hyper spectrometer

Table 2. Average reflectances of the reference panels measured by a hyper spectrometer

Table 3. Direct solar irradiance proportion (p) of each band during the image collection period

Table 3. Direct solar irradiance proportion (p) of each band during the image collection period

Table 4. Average reflectances of the reference panels derived from the UAV-based multispectral images

Table 4. Average reflectances of the reference panels derived from the UAV-based multispectral images

微信扫一扫：分享