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.
Kokhanov A.A.,Moscow State University of Geodesy and Cartography
Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa | Year: 2016
The paper describes the development and creation of maps of the lunar polar regions. The original modern remote sensing data obtained from spacecrafts in the period from 2007 to present time, which were used for mapping and study of the Earth's satellite topography, are listed. The concept of general wall map of lunar polar regions at a scale of 1:1 600 000 is presented; basic principles of its compilation and design are described. Layout of wall map is shown, that includes general map of polar regions, hypsometric map and map of slopes of crater Boguslavsky - the potential landing site for Luna-25 spacecraft - at a scale of 1:1 000 000, maps of slopes near potential landing sites for Luna-27 spacecraft. With hypsographic curves and histograms of heights the differences in the global relief between the lunar northern and southern polar regions are shown. The height range in the southern region is almost twice that on the north. The average height of the southern polar region is -1339 m, and that on the north is -824 m. Northern polar region is situated on a lunar terrain with old flat-bottomed craters and has a more gently sloping than the southern region that is mostly occupied by the South Pole-Aitken Basin.
Svetlana D.,Moscow State University of Geodesy and Cartography
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM | Year: 2014
As well as in any new, quickly developing sphere, in digital navigation mapping already the questions connected with improvement of technology of maps’ creation now begin to appear. Therefore, in this situation it is very important to pay attention to the process of drawing up navigation maps – to accurate definition of object structure, distribution of objects by layers and levels of a scale row. For the solution of these tasks, we want to offer the technique of digital map bases creation for navigation maps in which the norms of a ratio of elements of a maps’ basis established during the research and the thematic contents are considered. © SGEM2014.
Solomatin V.A.,Moscow State University of Geodesy and Cartography
Measurement Techniques | Year: 2016
We present an analysis of the influence of laser scanner parameters on the accuracy of the surface relief model created by scanning an object surface. © 2016 Springer Science+Business Media New York
Kreslavsky M.A.,Moscow State University of Geodesy and Cartography |
Head J.W.,Brown University
Icarus | Year: 2016
We calculated topographic gradients over the surface of the Moon at a 25. m baseline using data obtained by the Lunar Orbiter Laser Altimeter (LOLA) instrument onboard the Lunar Reconnaissance Orbiter (LRO) spacecraft. The relative spatial distribution of steep slopes can be reliably obtained, although some technical characteristics of the LOLA dataset preclude statistical studies of slope orientation. The derived slope-frequency distribution revealed a steep rollover for slopes close to the angle of repose. Slopes significantly steeper than the angle of repose are almost absent on the Moon due to (1) the general absence of cohesion/strength of the fractured and fragmented megaregolith of the lunar highlands, and (2) the absence of geological processes producing steep-slopes in the recent geological past. The majority of slopes steeper than 32°-35° are associated with relatively young large impact craters. We demonstrate that these impact craters progressively lose their steepest slopes. We also found that features of Early Imbrian and older ages have almost no slopes steeper than 35°. We interpret this to be due to removal of all steep slopes by the latest basin-forming impact (Orientale), probably by global seismic shaking. The global spatial distribution of the steepest slopes correlates moderately well with the predicted spatial distribution of impact rate; however, a significant paucity of steep slopes in the southern farside remains unexplained. © 2016 Elsevier Inc.
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.
Dubrovina S.,Moscow State University of Geodesy and Cartography
EAGE Geoinformatics 2014 - 13th International Conference on Geoinformatics - Theoretical and Applied Aspects 2014 | Year: 2014
Today, navigation is the need of modern life demanding efficiency and accuracy. Spatial navigation serves for the solution of the problems connected with the definition of objects' provisions and their management in space and time. It becomes one of daily functions of various areas of economy and economy branches. Modern technologies of coordinate-time and navigation providing define economic and industrial development of the country, strengthen its defense and national security, stimulate development of scientific and technical and innovative activity. Therefore, in this situation it is very important to pay attention to the process of drawing up navigation maps - to accurate definition of object structure, distribution of objects by layers and levels of a scale row. For the solution of these tasks, we want to offer the technique of digital map bases creation for navigation maps in which the norms of a ratio of elements of a maps' basis established during the research and the thematic contents are considered. Copyright © (2014) by the European Association of Geoscientists & Engineers. All rights reserved.
Basilevsky A.T.,RAS Vernadsky Institute of Geochemistry and Analytical Chemistry |
Kreslavsky M.A.,University of California at Santa Cruz |
Karachevtseva I.P.,Moscow State University of Geodesy and Cartography |
Gusakova E.N.,Moscow State University of Geodesy and Cartography
Planetary and Space Science | Year: 2014
This work was based on analysis of LROC NAC images with resolution ~0.5 m per pixel for the Lunokhod-1 and Lunokhod 2 study areas and Digital Elevation Models (DEMs) produced from these images. On these images, craters≥7 m in diameter were identified and outlined and their diameters D and depths d were measured using the mentioned DEMs. Then the depth/diameter ratios (d/D) were determined and their analysis showed that only the measurements for craters with D≥20 m were reliable. In addition, the maximum slope of the crater inner walls was measured by two techniques. The d/D and the maximum slope were found well correlated and practically similar for the two study areas. These results were compared with the earlier published values of d/D and maximum slope of the crater inner walls that had been reported by Florensky et al. (1972a) and Basilevsky (1976) as typical for craters of certain morphologic classes. Analysis of d/D-frequency distribution showed that the crater degradation rate as a function of d/D had a characteristic bend suggesting that there are two different processes of crater degradation. One is rather quick and operates for craters with d/D above ~0.14 and the inner crater walls steeper than ~25 o, the other, significantly slower process, operates for craters with the smaller relative depth and the gentler inner walls. The quick process with distinctive threshold is the downslope movement of the surface material by landslides and avalanches. The slow degradation without a threshold is probably contributed by crater filling by the ejecta from the near and distant craters and micrometeorite-induced diffusion creep of the regolith. These slow processes also operate on initial stage of crater degradation, but their role is minor in comparison to the quick processes. © 2014 Elsevier Ltd.
Agency: European Commission | Branch: FP7 | Program: CP-FP | Phase: SPA.2012.2.1-01 | Award Amount: 2.50M | Year: 2013
The international community of planetary science and exploration has launched, landed and operated dozens of human and robotic missions to the planets and the Moon. They have collected various surface imagery that has only been partially utilized for further scientific application purposes. Few attempts have been made so far to bring these data into a unified spatial context, or to exploit spatial relationships implicit in these images, including orbiter data. PRoViDE will assemble a major portion of the imaging data gathered so far from vehicles and probes on planetary surfaces into a unique database, bringing them into a spatial context and providing access to a complete set of 3D vision products. Processing is complemented by a multi-resolution visualization engine that combines various levels of detail for a seamless and immersive real-time access to dynamically rendered 3D scene representations. PRoViDE aims to (1) complete relevant 3D vision processing of planetary surface missions, such as Surveyor, Viking, Pathfinder, MER, MSL, Phoenix, Huygens, and Lunar ground-level panoramas & stereoscopic & multiscopic images from Apollo and Russian Lunokhod and selected Luna missions (2) provide highest resolution & accuracy remote sensing (orbital) vision data processing results for these sites to embed the robotic imagery and its products into spatial planetary context, (3) collect 3D Vision processing and remote sensing products within a single coherent spatial data base, (4) realize seamless fusion between orbital and ground vision data, (5) demonstrate the potential of planetary surface vision data by maximising image quality visualisation in 3D publishing platform , (6) collect and formulate use cases for novel scientific application scenarios exploiting the newly introduced spatial relationships and presentation, (7) demonstrate the concepts for MSL, (9) realize on-line dissemination of key data & its presentation by means of a web-based GIS and rendering tool
Agency: European Commission | Branch: FP7 | Program: CP-FP-SICA | Phase: SPA.2010.3.2-01 | Award Amount: 639.56K | Year: 2011
The objective of the MAIRES proposal is to develop methodologies for satellite monitoring of Arctic glaciers, sea ice and icebergs. Methodologies to retrieve quantitative information from the ESA and RKA data will be developed, and examples of satellite derived products for each of the three thematic areas will be presented. The main satellite data will be Synthetic Aperture Radar (SAR), optical and infrared images, radar altimeter data, passive microwave data and geoid data from GOCE. Results from the proposal can contribute to improved understanding of climate change and provide useful data for scientists, policy-makers and the general public. The MAIRES project will demonstrate the benefits of combining Earth Observation data from European and Russian satellites for operational mapping, interpretation and forecast of land and sea ice variations in the Eurasian Arctic. Satellite-derived data collected over many years can show seasonal and interannual variability of land ice, sea ice and icebergs. The results will be disseminated to users groups including climate research and operational users. The project will establish cooperation between ongoing GMES projects related to the cryosphere and Russian scientists, users and stakeholders.