Results 1 to 10 of about 110,330 (232)

Coarse-to-Fine Image Matching-Based Footprint Camera Calibration of the GF-7 Satellite [PDF]

Sensors, 2021
The GF-7 satellite is China’s first high-resolution stereo mapping satellite that reaches sub-meter resolution, equipped with new-type payloads, such as an area array footprint camera that can achieve synchronization acquisition of laser spots.
Lirong Liu, Junfeng Xie, Xinming Tang, Chaofeng Ren, Jiyi Chen, Ren Liu   +5 more
doaj   +5 more sources

Fine-Grained Building Classification in Rural Areas Based on GF-7 Data [PDF]

Sensors
Building type information is widely used in various fields, such as disaster management, urbanization studies, and population modelling. Few studies have been conducted on fine-grained building classification in rural areas using China’s Gaofen-7 (GF-7 ...
Mingbo Liu, Ping Wang, Peng Han, Longfei Liu, Baotian Li   +4 more
doaj   +4 more sources

Cloud detection of GF‐7 satellite laser footprint image [PDF]

IET Image Processing, 2021
In November 2019, the GaoFen‐7(GF‐7) satellite was equipped with China's first laser altimeter with full waveform recording capability, which obtains high‐precision long‐range three‐dimensional coordinates. The influence of clouds is noticeable for laser
Jiaqi Yao, Xinming Tang, Guoyuan Li, Jinquan Guo, Jiyi Chen, Xiongdan Yang, Bo Ai   +6 more
doaj   +2 more sources

On-Orbit Radiometric Performance of GF-7 Satellite Multispectral Imagery [PDF]

Remote Sensing, 2022
China’s first civilian, sub-meter, high-resolution stereo mapping satellite, GF-7, launched on 3 November 2019. Radiometric characterization of GF-7 multispectral imagery has been performed in this study. A relative radiometric accuracy evaluation of the
Hongzhao Tang, Junfeng Xie, Xinming Tang, Wei Chen, Qi Li   +4 more
doaj   +2 more sources

Overview of the GF‐7 Laser Altimeter System Mission [PDF]

Earth and Space Science, 2020
The Gao Fen 7 (GF‐7) satellite is China's first submeter, high‐resolution Earth observation and remote sensing satellite for natural resource monitoring, land surveying, and other industrial applications in China.
Xinming Tang, Junfeng Xie, Ren Liu, Genghua Huang, Chenguang Zhao, Ying Zhen, Hongzhao Tang, Xianhui Dou   +7 more
doaj   +2 more sources

Developing a Method to Extract Building 3D Information from GF-7 Data [PDF]

Remote Sensing, 2021
The three-dimensional (3D) information of buildings can describe the horizontal and vertical development of a city. The GaoFen-7 (GF-7) stereo-mapping satellite can provide multi-view and multi-spectral satellite images, which can clearly describe the ...
Jingyuan Wang, Xinli Hu, Qingyan Meng, Linlin Zhang, Chengyi Wang, Xiangchen Liu, Maofan Zhao   +6 more
doaj   +2 more sources

GF-7 IMAGING SIMULATION AND DSM ACCURACY ESTIMATE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
GF-7 satellite is a two-line-array stereo imaging satellite for surveying and mapping which will be launched in 2018. Its resolution is about 0.8 meter at subastral point corresponding to a 20 km width of cloth, and the viewing angle of its ...
Q. Yue, X. Tang, X. Gao
doaj   +4 more sources

POINTING BIAS CALIBRATION OF GAOFEN-7 LASER ALTIMETER BASED ON SINGLE LASER FOOTPRINT IMAGE [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The GaoFen-7 (GF-7) satellite is successfully launched on November 3, 2019, and its laser altimeter system is officially and firstly employed as the main payload for earth observations in China, which includes two sets of laser altimeters and laser ...
J. Xie, J. Xie, R. Liu, F. Mo, H. Tang, H. Jiao, Y. Mei, C. Yang   +7 more
doaj   +4 more sources

Laser Spot Center Location Method for Chinese Spaceborne GF-7 Footprint Camera. [PDF]

Sensors (Basel), 2020
The Gaofen-7 (GF-7) satellite is equipped with two area array sensor footprint cameras to capture the laser altimeter spot. In order to establish a direct correspondence between the laser data and the stereo image data, a new method is proposed to fit the center of the spot using the brightness difference between the spot image and the footprint image.
Ren C, Xie J, Zhi X, Yang Y, Yang S.
europepmc   +5 more sources

DSM Quality Assessment of GF-7 Satellite [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The Gaofen-7 (GF-7) satellite was launched on November 3, 2019. It can achieve 1:10000 scale stereo mapping and serve the application needs of basic surveying and mapping, natural resources monitoring and geographic information resource construction ...
P. Tian, P. Tian, P. Tian, P. Tian, X. Tang, X. Zhu, D. Qu, J. Ding, J. Ding, J. Ding, J. Ding, Y. Li   +11 more
doaj   +3 more sources