Results 41 to 50 of about 658 (192)
Deviationless geodetic transformations [PDF]
Acta Montanistica Slovaca, 1997 In a geodetic transformation of two networks (old, new), coordinate deviations come into being at the identical points and the transformated coordinates have to be corrected. A new deviationless method of Helmert and affine transformation is presented in
Sütti Juraj
doaj
APPLYING 3D AFFINE TRANSFORMATION AND LEAST SQUARES MATCHING FOR AIRBORNE LASER SCANNING STRIPS ADJUSTMENT WITHOUT GNSS/IMU TRAJECTORY DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 In this article we extend our previous work on the topic of ALS strip adjustment without GNSS/IMU trajectory data. Between overlap- ping strip pairs the relative orientation as a 3D affine transformation is estimated by a 3D LSM approach, which uses ...
C. Ressl, N. Pfeifer, G. Mandlburger
doaj +1 more source
COORDINATE TRANSFORMATION USING THE LEAST SQUARES METHOD: A CASE STUDY ON TRABZON, TURKEY [PDF]
Geodetski GlasnikThe ED50 datum uses the Hayford ellipsoid and the Greenwich meridian as the prime meridian. In Turkey, the ED50 datum with the Hayford ellipsoid was used until 2001, after which the ITRF datum with the GRS80 ellipsoid became the standard.
Nazan Yilmaz
doaj +1 more source
Estimation of strain accumulation of densification network in Northern Marmara Region, Turkey [PDF]
Natural Hazards and Earth System Sciences, 2010 Strain analysis is one of the methods for the kinematic analysis of the repeated geodetic measurements. In order to derive strain accumulation in Marmara Region, different institutions carried out several Global Positioning System (GPS) campaigns in 1999
I. Deniz, H. Ozener
doaj +1 more source
Application of two dimensional Helmert transformation in geodetic survey
, 2021 Afina podobnostna transformacija v ravnini, znana tudi kot Helmertova transformacija, se uporablja za transformacijo koordinat iz enega koordinatnega sistema v drugega (npr.
Hušidić, Selvedina
core
Generalized Helmert transformation for high precision positioning: theory and examples
, 2000 A implantação de um referencial que descreve posições na superfície terrestre, ou próximo a essa, é dividida em duas fases: definição do sistema de referência (Reference System) e sua materialização (Reference Frame).
Sapucci, L. F. [UNESP] +5 more
core +2 more sources
Deformation analysis with Total Least Squares [PDF]
Natural Hazards and Earth System Sciences, 2006 Deformation analysis is one of the main research fields in geodesy. Deformation analysis process comprises measurement and analysis phases. Measurements can be collected using several techniques. The output of the evaluation of the measurements is mainly
M. Acar +4 more
doaj
Photogrammetric determination of discrepancies between actual and planned position of dental implants [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 The paper describes the design and testing of a photogrammetric measurement protocol set up to determine the discrepancies between the planned and actual position of computer-guided template-based dental implants.
G. Forlani, F. Rivara
doaj +1 more source
Permafrost and Periglacial Processes, EarlyView.ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee +2 more
wiley +1 more source
Regional GNSS Common Mode Error Correction to Refine the Global Reference Frame
Remote SensingCommon mode error (CME) arises from various sources, including unknown regional errors, potential geophysical signals, and other factors present in global navigation satellite system (GNSS) coordinate solutions, undeniably affecting the GNSS precision ...
Ruyuan Wang +4 more
doaj +1 more source