Results 1 to 10 of about 14,217 (87)
A complete solution of an improved universal 3D coordinate similarity transformation model
Geodesy and Geodynamics, 2021 When linearizing three-dimensional (3D) coordinate similarity transformation model with large rotations, we usually encounter the ill-posed normal matrix which may aggravate the instability of solutions.
Leyang Wang, Jianqiang Sun, Qiwen Wu
doaj +3 more sources
WTLS iterative algorithm of 3D similarity coordinate transformation based on Gibbs vectors
Earth, Planets and Space, 2020 The 3D similarity coordinate transformation is fundamental and frequently encountered in many areas of work such as geodesy, engineering surveying, LIDAR, terrestrial laser scanning, photogrammetry, machine vision, etc.
Huaien Zeng +3 more
doaj +3 more sources
RESEARCH ON COORDINATE TRANSFORMATION METHOD OF GB-SAR IMAGE SUPPORTED BY 3D LASER SCANNING TECHNOLOGY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 In the image plane of GB-SAR, identification of deformation distribution is usually carried out by artificial interpretation. This method requires analysts to have adequate experience of radar imaging and target recognition, otherwise it can easily cause
P. Wang, C. Xing
doaj +1 more source
COMPARISON OF 2D AND 3D APPROACHES FOR THE ALIGNMENT OF UAV AND LIDAR POINT CLOUDS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 The automatic alignment of 3D point clouds acquired or generated from different sensors is a challenging problem. The objective of the alignment is to estimate the 3D similarity transformation parameters, including a global scale factor, 3 rotations and ...
R. A. Persad, C. Armenakis
doaj +1 more source
SEMI-AUTOMATIC CO-REGISTRATION OF PHOTOGRAMMETRIC AND LIDAR DATA USING BUILDINGS [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 In this work, the co-registration steps between LiDAR and photogrammetric DSM 3Ddata are analyzed and a solution based on automated plane matching is proposed and implemented.
C. Armenakis, Y. Gao, G. Sohn
doaj +1 more source
Journal of Geodetic Science, 2023 The transformation of coordinates between different geodetic datums has been a common practice within the geospatial profession. Relating different geodetic datums mostly involves the use of conformal transformation techniques, which could produce ...
Kheloufi Noureddine, Dehni Abdellatif
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Deformation monitoring of structures is a common application and one of the major tasks in surveying engineering, but there is a great challenge for the coordinate datum unification of multitemporal point cloud data. To address this problem, an automatic
Wenxiao Sun, Jian Wang, Fengxiang Jin
doaj +1 more source
On ill-conditioning in 3D Similarity Transformation
International Journal of Environment and Geoinformatics, 2015 3D similarity transformations are often used for datum transformation in Geomatic Engineering. The transformations are routinely performed between the point coordinates evaluated from GNSS (Global Navigation Satellite Systems) observations and the ...
Orhan Kurt
doaj +1 more source
A Ridgeline-Based Terrain Co-registration for Satellite LiDAR Point Clouds in Rough Areas
Remote Sensing, 2020 It is still a completely new and challenging task to register extensive, enormous and sparse satellite light detection and ranging (LiDAR) point clouds.
Ruqin Zhou, Wanshou Jiang
doaj +1 more source
Orthopaedic Surgery, 2020 Objective To evaluate the morphological similarity of bilateral coronoid process. Methods A total of 128 sets of computed tomography images of bilateral coronoid process from patients between January 2015 and December 2016 were acquired for three ...
Hai‐long Zhang, Kun‐Jhih Lin, Yi Lu
doaj +1 more source