Results 21 to 30 of about 75,657 (271)

Building Height Extraction Based on Satellite GF-7 High-Resolution Stereo Image [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
High-resolution remote sensing images can distinguish objects of smaller size, so as to more clearly express the texture features and structural information of objects, and provide a data source for the development of large-scale mapping, high-precision ...
Z. Tian, Y. Gong
doaj   +4 more sources

A Method for Extracting High-Resolution Building Height Information in Rural Areas Using GF-7 Data [PDF]

open access: yesSensors
Building height is important information in disaster management and damage assessment. It is also a key parameter in studies such as population modeling and urbanization.
Mingbo Liu   +5 more
doaj   +3 more sources

Geographically-Informed Modeling and Analysis of Platform Attitude Jitter in GF-7 Sub-Meter Stereo Mapping Satellite

open access: yesISPRS International Journal of Geo-Information
The GF-7 satellite, China’s inaugural sub-meter-level stereoscopic mapping satellite, has been deployed for a wide range of applications, including natural resource investigation, environmental monitoring, fundamental surveying, and the development of ...
Haoran Xia   +4 more
doaj   +3 more sources

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

open access: yesSensors
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   +4 more
doaj   +3 more sources

Comprehensive flood risk identification and assessment in small mountainous watersheds using GF-7 satellite imagery and hydrological-hydrodynamic modeling

open access: yesJournal of Hydrology: Regional Studies
Study region: The Liucun Town watershed in Beijing, China, represents a typical small mountainous watershed prone to short-duration, high-intensity floods.
Jiqing Li   +8 more
doaj   +3 more sources

Rigorous Sensor Model of Gaofen-7 Satellite Laser Altimeter Based on Coupled Footprint Camera

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The Gaofen-7 (GF-7) satellite system adds a footprint camera that shares the same optical path as its laser altimeter to ensure consistent spatial referencing between the laser footprint point and the obtained optical images.
Shaoning Li, Guo Zhang, Xiufang Fan
doaj   +2 more sources

Comparison of Integrating GF-7 and ICESat-2 Laser Altimetry Data with High-resolution Stereo Images for Stereo Mapping [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Currently, two types of satellite laser altimetry systems are in operation: the full waveform linear system and the single-photon-counting system, which exhibit significant differences in both data format and processing methodologies.
J. Chen, G. Li, J. Guo, J. Peng, J. Peng
doaj   +2 more sources

Accuracy assessment of DSM in mountainous forest areas generated from GF-7 stereo images assisted by ATLAS/ICESat-2 [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The successful launch of the GaoFen-7 (GF-7) satellite has made it possible to achieve sub-meter-level three-dimensional mapping. However, most current studies focus on accuracy evaluating of GF-7 stereo mapping in bare land, and less on its performance ...
J. Xie   +4 more
doaj   +2 more sources

Crop recognition by multiangle features of GF-7 satellite

open access: yesNational Remote Sensing Bulletin, 2023
SUN Zhihu   +4 more
openaire   +2 more sources

Three-Dimensional Surface Deformation of the 2022 Mw 6.6 Menyuan Earthquake from InSAR and GF-7 Stereo Satellite Images

open access: yesRemote Sensing
Three-dimensional coseismic surface deformation fields are important for quantifying the geometric and kinematic characteristics of earthquake rupture faults. However, traditional geodetic techniques are constrained by intrinsic limitations: Interferometric synthetic aperture radar (InSAR) can only extract far-field deformation fields owing to ...
Nana Han   +5 more
openaire   +3 more sources

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