Results 21 to 30 of about 1,514,703 (285)

Total Least Squares Registration of 3D Surfaces

open access: yesInternational Journal of Environment and Geoinformatics, 2015
Co-registration of point clouds of partially scanned objects is the first step of the 3D modeling workflow. The aim of co-registration is to merge the overlapping point clouds by estimating the spatial transformation parameters.
Umut Aydar, M. Orhan Altan
doaj   +1 more source

Robust Total Least Squares Estimation Method for Uncertain Linear Regression Model

open access: yesMathematics, 2023
In data analysis and modeling, least squares and total least squares are both mathematical optimization techniques. It is noteworthy that both the least squares method and the total least squares method are used to deal with precise and random data ...
Hongmei Shi   +4 more
doaj   +1 more source

Sparsity-Cognizant Total Least-Squares for Perturbed Compressive Sampling [PDF]

open access: yes, 2010
Solving linear regression problems based on the total least-squares (TLS) criterion has well-documented merits in various applications, where perturbations appear both in the data vector as well as in the regression matrix.
Geert Leus   +4 more
core   +1 more source

Properties of the total least squares estimation

open access: yesGeodesy and Geodynamics, 2012
Through theoretical derivation, some properties of the total least squares estimation are found. The total least squares estimation is the linear transformation of the least squares estimation, and the total least squares estimation is unbiased.
Wang Leyang
doaj   +1 more source

General Total Least Squares Theory for Geodetic Coordinate Transformations

open access: yesApplied Sciences, 2020
Datum transformations are a fundamental issue in geodesy, Global Positioning System (GPS) science and technology, geographical information science (GIS), and other research fields.
Yuxin Qin   +3 more
doaj   +1 more source

Short-Arc Horizon-Based Optical Navigation by Total Least-Squares Estimation

open access: yesAerospace, 2023
Horizon-based optical navigation (OPNAV) is an attractive solution for deep space exploration missions, with strong autonomy and high accuracy. In some scenarios, especially those with large variations in spacecraft distance from celestial bodies, the ...
Huajian Deng   +3 more
doaj   +1 more source

Total Least Squares Phase Retrieval

open access: yesIEEE Transactions on Signal Processing, 2022
We address the phase retrieval problem with errors in the sensing vectors. A number of recent methods for phase retrieval are based on least squares (LS) formulations which assume errors in the quadratic measurements. We extend this approach to handle errors in the sensing vectors by adopting the total least squares (TLS) framework that is used in ...
Gupta, Sidharth   +2 more
openaire   +2 more sources

A Gauss--Newton iteration for Total Least Squares problems [PDF]

open access: yes, 2017
The Total Least Squares solution of an overdetermined, approximate linear equation $Ax \approx b$ minimizes a nonlinear function which characterizes the backward error.
Fasino, Dario, Fazzi, Antonio
core   +2 more sources

ACCURACY ASSESSMENT OF HEIGHTS OBTAINED FROM TOTAL STATION AND LEVEL INSTRUMENT USING TOTAL LEAST SQUARES AND ORDINARY LEAST SQUARES METHODS

open access: yesGeoplanning: Journal of Geomatics and Planning, 2016
Spirit levelling has been the traditional means of determining Reduced Levels (RL’s) of points by most surveyors.  The assertion that the level instrument is the best instrument for determining elevations of points needs to be reviewed; this is because ...
Richard Fiifi Annan   +3 more
doaj   +1 more source

Nonlinear total least-squares variance component estimation for GM(1,1) model

open access: yesGeodesy and Geodynamics, 2021
The solution of the grey model (GM(1,1) model) generally involves equal-precision observations, and the (co)variance matrix is established from the prior information.
Leyang Wang, Jianqiang Sun, Qiwen Wu
doaj   +1 more source

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