Developing a Method to Extract Building 3D Information from GF-7 Data
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 +6 more
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On-Orbit Geometric Calibration and Accuracy Validation for Laser Footprint Cameras of GF-7 Satellite
Remote Sensing, 2022 The Gaofen-7 (GF-7) satellite uses a two-beam laser altimetry system in which each beam is equipped with a laser footprint camera (LFC) to provide geometric processing of the laser footprint images that assist in optical image stereo mapping.
Jiyi Chen +6 more
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Accuracy Comparison and Assessment of DSM Derived from GFDM Satellite and GF-7 Satellite Imagery
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 +4 more
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Building Height Extraction Based on Satellite GF-7 High-Resolution Stereo Image [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesHigh-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
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Laser Spot Center Location Method for Chinese Spaceborne GF-7 Footprint Camera
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 +4 more
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Recognizing Urban Functional Zones by GF-7 Satellite Stereo Imagery and POI Data
Applied Sciences, 2023 The identification of urban functional zones (UFZs) is crucial for urban planning and optimizing industrial layout. Fusing remote sensing images and social perception data is an effective way to identify UFZs.
Zhenhui Sun +5 more
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Fine-Grained Building Classification in Rural Areas Based on GF-7 Data
SensorsBuilding 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
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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 +7 more
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Method of extracting control points from GF-7 remote sensing image based on five-layer-fifteen-level tiles [PDF]
Journal of Physics: Conference Series, 2021 Abstract In view of the traditional manual and semi-automatic methods can not quickly and effectively extract control points, this paper uses five-layer fifteen-level tiles (FLFLT) as reference images, and proposes an efficient and automatic method for automatic extraction control points of GF-7 image.
Qiang Xiong, Shenghui Fang, Xiaojuan Liu
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Rigorous Sensor Model of Gaofen-7 Satellite Laser Altimeter Based on Coupled Footprint Camera
IEEE 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
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