Results 231 to 240 of about 75,657 (271)

Old-growth forest patches are widespread outside nature reserves in Southern China

open access: yes
Tong X   +18 more
europepmc   +1 more source

Geometric Accuracy Verification of GF-7 Satellite Stereo Imagery Without GCPs

IEEE Geoscience and Remote Sensing Letters, 2022
The GaoFen-7 (GF-7) satellite is the China’s first civil optical stereo-mapping satellite with submeter resolution. GF-7 is also equipped with a laser altimeter, which can obtain sparse laser altimetry points (LAPs) to improve the vertical accuracy of ...
Ping Zhou 0005, Xinming Tang
openaire   +2 more sources

Preliminary application of GF-7 satellite data in geological survey in Hami Area

International Conference on Optics and Machine Vision (ICOMV 2022), 2022
The GF-7 satellite has high spatial resolution. This article compares GF-7, GF-1 and GF-2 in terms of image color effect, spectral resolution and feature difference, and makes a preliminary evaluation of the accuracy of remote sensing geological ...
Jing Wen   +3 more
openaire   +2 more sources

A Geometric Calibration Method Without a Field Site of the GF-7 Satellite Laser Relying on a Surface Mathematical Model

IEEE Transactions on Geoscience and Remote Sensing, 2023
The GaoFen-7 (GF-7) satellite, which is used for Earth observations, is equipped with China’s first civil full-waveform laser altimeter. The geometric calibration of the GF-7 satellite laser is vital for ensuring its long-term stability and highly ...
Junfeng Xie 0001   +6 more
openaire   +2 more sources

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