Results 31 to 40 of about 13,127,977 (103)

Automated geometric precise correction of medium remote sensing images based on ASTER global digital elevation model

Geocarto International, 2023
Accurate and unified information from the increasingly remote sensing (RS) scenes is important for RS applications in multi-sectoral association services of natural resource management.
Yanxia Wang, Ye Jiangxia, Chen Chuan, Ruliang Zhou   +3 more
doaj   +1 more source

Navigation of satellite measurements without ground control points

, 1993
The minimum of information on satellite dynamics (a part of celestial mechanics) which is needed to navigate operational polar orbiting meteorological satellites either for direct or inverse referencing without ground control points, is presented.
Klokocnik, J., Straka, J., Grassl, H.
core   +1 more source

Automatic selection of permanent scatterers-based GCPs for refinement and reflattening in InSAR DEM generation

International Journal of Digital Earth, 2022
In DEM generation using interferometric synthetic aperture radar (InSAR), the ground control points (GCPs) for refinement and reflattening are usually selected by manual selection, field surveying, GPS points and existing basemaps, which may not be ...
Yongjiu Feng, Yilun Zhou, Yanling Chen, Pengshuo Li, Mengrong Xi, Xiaohua Tong   +5 more
doaj   +1 more source

UAV aerial triangulation: Point error distributions and the influencing mechanisms of ground control points on its accuracy

, 2023
Unmanned aerial vehicles (UAVs) have been an important means of monitoring the surface deformation in mining areas since they are flexible, are insensitive to weather, and can swiftly acquire images of target areas.
Chenyang, MA, Jianfeng, ZHA, Dejun, WU, Pengcheng, ZHU, Dong, WANG, Chongwu, ZHONG, Hongwu, YIN   +6 more
core   +1 more source

Impacts of GCP Distributions on UAV-PPK Photogrammetry at Sermeq Avannarleq Glacier, Greenland

Remote Sensing
Real-Time/Post-Processing Kinematic (RTK/PPK) technology has been widely applied in Unmanned Aerial Vehicle (UAV) photogrammetry in glaciological research. Considering that ground control points (GCPs) cannot be set on glaciers, evaluating the impacts of
Haiyan Zhao, Gang Li, Zhuoqi Chen, Shuhang Zhang, Baogang Zhang, Xiao Cheng   +5 more
doaj   +1 more source

A Novel Method for Fast Positioning of Non-Standardized Ground Control Points in Drone Images

Remote Sensing, 2021
Positioning the pixels of ground control points (GCPs) in drone images is an issue of great concern in the field of drone photogrammetry. The current mainstream automatic approaches are based on standardized markers, such as circular coded targets and ...
Zheng Zhu, Tengfei Bao, Yuhan Hu, Jian Gong   +3 more
doaj   +1 more source

Generation of a Digital Terrain Model (DTM) Fusioning WV-2 Images and RTK-derived Topobathymetric Data

Revista Brasileira de Cartografia
Digital terrain models (DTMs) are digital elevation models (DEMs) that represent the bare ground surface. They are created by multiple sources, including satellite remote sensing, aerial photography, and ground-based surveys, and are often combined with
Elton Vicente Escobar Silva, Cláudia Maria de Almeida, Rômulo Marques-Carvalho, João Vitor Roque Guerrero, Cleber Gonzales de Oliveira   +4 more
doaj   +1 more source

Geometric Positioning for Satellite Imagery without Ground Control Points by Exploiting Repeated Observation

Sensors, 2017
With the development of space technology and the performance of remote sensors, high-resolution satellites are continuously launched by countries around the world.
Zhenling Ma, Xiaoliang Wu, Li Yan, Zhenliang Xu   +3 more
doaj   +1 more source

Optimizing photogrammetric DEMs for glacier volume change assessment using laser-scanning derived ground-control points

, 2009
Barrand, N.E., James, T.D., Murray, T., Barr, S.L. , Mills, J.P. Optimizing photogrammetric DEMs for glacier volume change assessment using laser-scanning derived ground-control points, J.
Murray, T., Mills, J.P., Tavi Murray, Barr, S.L., Barrand, N.E.; id_orcid, James, T.D., Timothy James, Timothy D. James, Jon P. Mills, Stuart L. Barr, Nicholas E. Barrand   +10 more
core   +1 more source

Adaptive Re-weighted Block Adjustment for Multi-Coverage Satellite Stereo Images without Ground Control Points

IEEE Access, 2019
Georeferencing satellite imagery is the basis for mapping and other subsequent processing in photogrammetry and remote sensing. Traditional georeferencing methods, which require adequate and well-distributed ground control points (GCPs), are time ...
Kunbo Liu, Pengjie Tao, Kai Tan, Yansong Duan, Jianan He, Xiangyong Luo   +5 more
doaj   +1 more source