Results 1 to 10 of about 107,677 (247)

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   +7 more sources

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

Sensors, 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 ...
Chaofeng Ren, Junfeng Xie, Xiaodong Zhi, Yun Yang, Shuai Yang   +4 more
doaj   +7 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   +3 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   +4 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   +5 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   +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   +3 more sources

KEY TECHNOLOGIES FOR 1:10,000 RAPID MAPPING BASED ON GF-7 SATELLITE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In order to solve the problems of low efficiency, high cost and long cycle of the traditional 1:10000 basic geographic information data production method (aerial photography combined with field mapping), this paper proposes a 1:10000 rapid mapping method
J. W. Liu, J. J. Liu, B. L. Zhao, X. He, S. Q. Zhao, C. C. Wu   +5 more
doaj   +4 more sources

Accuracy Comparison and Assessment of DSM Derived from GFDM Satellite and GF-7 Satellite Imagery [PDF]

Remote Sensing, 2021
Digital Surface Model (DSM) derived from high resolution satellite imagery is important for various applications. GFDM is China’s first civil optical remote sensing satellite with multiple agile imaging modes and sub-meter resolution.
Xiaoyong Zhu, Xinming Tang, Guo Zhang, Bin Liu, Wenmin Hu   +4 more
doaj   +4 more sources

Building Height Extraction from GF-7 Satellite Images Based on Roof Contour Constrained Stereo Matching [PDF]

Remote Sensing, 2022
Building height is one of the basic geographic information for planning and analysis in urban construction. It is still very challenging to estimate the accurate height of complex buildings from satellite images, especially for buildings with podium ...
Chenni Zhang, Yunfan Cui, Zeyao Zhu, San Jiang, Wanshou Jiang   +4 more
doaj   +3 more sources