Results 1 to 10 of about 110,673 (257)

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

open access: yesSensors, 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   +5 more
doaj   +5 more sources

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

open access: yesSensors, 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   +4 more
doaj   +5 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   +4 more sources

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

open access: yesRemote 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   +4 more
doaj   +2 more sources

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

open access: yesIET 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   +6 more
doaj   +2 more sources

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

open access: yesISPRS 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   +7 more
doaj   +4 more sources

APPLICATION ORIENTED QUALITY EVALUATION OF GAOFEN-7 OPTICAL STEREO SATELLITE IMAGERY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
GaoFen-7 (GF-7) satellite mission is further expanding the very high resolution 3D mapping application. Carrying the first civilian Chinese sub-meter resolution stereo satellite sensors, GF-7 satellite was launched on November 7, 2019.
J. Tian   +5 more
doaj   +1 more source

DEM Generation from GF-7 Satellite Stereo Imagery Assisted by Space-Borne LiDAR and Its Application to Active Tectonics

open access: yesRemote Sensing, 2023
China’s first optical stereo mapping satellite with a sub-meter resolution, GaoFen-7 (GF-7), launched in November 2019, shows significant potential for providing high-resolution topographic and geomorphic data for quantitative research on active ...
Xiaoxiao Zhu   +6 more
doaj   +1 more source

The role of the NGAL biomarker in the assessment of early and prediction of late graft function in kidney transplantation from a living related donor

open access: yesZaporožskij Medicinskij Žurnal, 2022
The aim. To study the role of NGAL in assessing the recovery of early graft function (GF) and in predicting GF in the first year after kidney transplantation (KT) from a living-related donor (LRD). Materials and methods.
M. I. Kyrychenko
doaj   +1 more source

Brain effects of gestating germ-free persist in mouse neonates despite acquisition of a microbiota at birth

open access: yesFrontiers in Neuroscience, 2023
At birth, mammals experience a massive colonization by microorganisms. We previously reported that newborn mice gestated and born germ-free (GF) have increased microglial labeling and alterations in developmental neuronal cell death in the hippocampus ...
Alexandra Castillo-Ruiz   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy