Results 1 to 10 of about 94,173 (211)
WTLS iterative algorithm of 3D similarity coordinate transformation based on Gibbs vectors [PDF]
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
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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
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Reports on Geodesy and GeoinformaticsModern surveying practice has embraced the use of Global Navigation Satellite System (GNSS) technology due to its attainable precision and uncomplicated functionality.
Ziggah Yao Yevenyo +2 more
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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
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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
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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
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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
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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
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Anatomical landmark based registration of contrast enhanced T1-weighted MR images [PDF]
, 2010 In many problems involving multiple image analysis, an im- age registration step is required. One such problem appears in brain tumor imaging, where baseline and follow-up image volumes from a tu- mor patient are often to-be compared.
Demir, Ali +3 more
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Wave-like Solutions for Bianchi type-I cosmologies in 5D [PDF]
, 2008 We derive exact solutions to the vacuum Einstein field equations in 5D, under the assumption that (i) the line element in 5D possesses self-similar symmetry, in the classical understanding of Sedov, Taub and Zeldovich, and that (ii) the metric tensor is ...
Apostolopoulos P S +17 more
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