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El-Sheikh H.M.,Moscow State University of Geodesy and Cartography
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2014

This paper presents the dependences that determine how the spatial resolution resulting from perspective distortions is related to the temporal resolution of optoelectronic remote-probing systems. These dependences can be used to compare the resolution of a system, determined by the parameters of the set of components available to the developer, with the requirements of those who use the system. © 2014 Optical Society of America. Source

Strizhkin I.I.,Moscow State University of Geodesy and Cartography
Izvestiya - Atmospheric and Ocean Physics | Year: 2010

We analyze the optical method of determining wave slopes on the sea surface from measurements of the characteristics of the glitter zone on photographs. Two approaches to the implementing this are explored. Their merits and drawbacks are noted. Low-altitude (H = 5-20 m) photographs of the sea surface are used to acquire new diverse information on the fine structure of the glitter zone and its relation to the sea roughness. We present a number of new experimental data on the glitter features and structure that were omitted in the Cox-Munk method. The applicability range for this optical method is estimated. © 2010 Pleiades Publishing, Ltd. Source

Soldatov V.P.,Moscow State University of Geodesy and Cartography
Measurement Techniques | Year: 2015

We consider the basic parameters for accuracy of a new method of determining object displacement by scanning its image relative to the components of a multi-element radiation detector. © 2015 Springer Science+Business Media New York. Source

Kopeikin S.M.,University of Missouri | Kopeikin S.M.,Siberian State Geodetic Academy | Mazurova E.M.,Moscow State University of Geodesy and Cartography | Karpik A.P.,Siberian State Geodetic Academy
Physics Letters, Section A: General, Atomic and Solid State Physics | Year: 2015

The present paper extends the Newtonian concept of the geoid in classic geodesy towards the realm of general relativity by utilizing the covariant geometric methods of the perturbation theory of curved manifolds. It yields a covariant definition of the anomalous (disturbing) gravity potential and formulates differential equation for it in the form of a covariant Laplace equation. The paper also derives the Bruns equation for calculation of geoid's height with full account for relativistic effects beyond the Newtonian approximation. A brief discussion of the relativistic Bruns formula is provided. © 2015 Elsevier B.V. All rights reserved. Source

Shapovalov R.,Moscow State University | Velizhev A.,Moscow State University of Geodesy and Cartography
Proceedings - 2011 International Conference on 3D Imaging, Modeling, Processing, Visualization and Transmission, 3DIMPVT 2011 | Year: 2011

We address the problem of object class segmentation of 3D point clouds. Each point of a cloud should be assigned a class label determined by the category of the object it belongs to. Non-associative Markov networks have been applied to this task recently. Indeed, they impose more flexible constraints on segmentation results in contrast to the associative ones. We show how to train non-associative Markov networks in a principled manner using the structured Support Vector Machine (SVM) formalism. In contrast to prior work we use the kernel trick which makes our method one of the first non-linear methods for max-margin Markov Random Field training applied to 3D point cloud segmentation. We evaluate our method on airborne and terrestrial laser scans. In comparison to the other non-linear training techniques our method shows higher accuracy. © 2011 IEEE. Source

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