Results 31 to 40 of about 322,935 (315)

Overviews of Optimization Techniques for Geometric Estimation [PDF]

open access: yes, 2013
We summarize techniques for optimal geometric estimation from noisy observations for computer vision applications. We first discuss the interpretation of optimality and point out that geometric estimation is different from the standard statistical ...
Kanatani, Kenichi
core   +1 more source

Geometric-phase polarimetry [PDF]

open access: yes, 2020
This paper describes polarimetric strategies based on measuring the light's geometric phase, which results from the evolution of the polarisation state while traversing an optical system. The system in question is described by a homogeneous Jones matrix,
Alejandra De-Luna-Pamanes (14382807)   +5 more
core   +1 more source

The use of affine transformations for image correction with further use in recognition systems

open access: yesТехнічна інженерія, 2023
Today, neural networks are gaining popularity and are increasingly used in various fields of life. They are used for data analysis, clustering, classification, object detection, or hidden patterns.
D.K.
doaj   +1 more source

Numerical investigation of the effect of geometric and hydrodynamic parameters of waves on the performance of rectangular floating pontoon breakwater structure [PDF]

open access: yesفناوری‌های پیشرفته در بهره‌وری آب, 2023
Considering that pontoon breakwaters are among the most common floating breakwaters, which have many advantages over other types of fixed breakwaters, therefore, in the present study, the performance of the rectangular section of this structure under the
Mehdi Azami   +2 more
doaj   +1 more source

Searching for correlations between geometric and spectroscopic parameters of intramolecular hydrogen bonds in porphyrin-like macrocycles [PDF]

open access: yes, 2022
Chemical bond lengths and angles are characteristic structural parameters of a molecule. Similarly, the frequencies of the vibrational modes and the NMR chemical shifts are unique "chemical fingerprints" specific to a compound.
Sylwester, Gawinkowski, Om, Prakash
core   +1 more source

Geometric parameters and response surface methodology on cooling performance of vortex tubes

open access: yesInternational Journal of Sustainable Energy, 2017
This research has investigated the effect of certain geometric parameters on cooling performance of three vortex tubes. The influencing parameters include three length/diameter ratios L/D = 10, 25, 40, three nozzle cases and each case with number n = 2 ...
A. Nouri-Borujerdi   +3 more
doaj   +1 more source

Estimation of the Parameters of a Bivariate Geometric Distribution [PDF]

open access: yesJournal of Statistical Theory and Applications, 2015
The uniformly minimum variance unbiased estimators (UMVUE) of the parameters and reliability functions of a bivariate geometric distribution(BGD) have been derived.The exact variances of the maximum likelihood estimator (MLE) and of UMVUE have been derived and the corresponding mean square errors have been compared.It is found that in some cases UMVUE ...
U.J. Dixit, S. Annapurna
openaire   +2 more sources

Influence of Geometric Parameters of Tiny Blades on the Shroud of a Centrifugal Pump on the Cavitation Suppression Effect

open access: yesFrontiers in Energy Research, 2022
In this paper, the effect of adding non-connected forms of tiny blades with different parameters of radial position, width, and length to the shroud of the impeller on the cavitation performance of a centrifugal pump is researched.
Weiguo Zhao   +2 more
doaj   +1 more source

On The Parameters of Geometric Constraints for Cracked Plates under Tension – Three-Dimensional Problems [PDF]

open access: yes, 2017
This paper provides a comparative analysis of selected parameters of the geometric constraints for cracked plates subjected to tension. The results of three-dimensional numerical calculations were used to assess the distribution of these parameters ...
M. Graba, Graba, M.
core   +1 more source

Dynamic effect on turnouts of cars having wheelsets with thin flanges

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
Geometrical parameters of the “wheelset—rail track” system are mutually related. Currently, a very topical issue is the question of a possible adjustment of the regulatory framework in the “wheelset—rail track” system in order to take into account the ...
B. E. Glyuzberg   +5 more
doaj   +1 more source

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