scholarly journals On the methods of recognition and classification of laser reflection points based on the Terrasolid software module on the Bentley Microstation platform

2021 ◽  
Vol 2131 (5) ◽  
pp. 052100
Author(s):  
R Dyachenko ◽  
D Gura ◽  
N Kiryunikova ◽  
E Lesovaya ◽  
N Khusht ◽  
...  

Abstract Nowadays, the use of the three-dimensional laser scanning technique in performing various scientific research comes to the fore, since this technology is one of the most developed and effective methods for analyzing the state of transport infrastructure objects and geodetic monitoring. The purpose of this paper is to develop an author’s algorithm for the classification of laser reflection points, based on the specialized Terrasolid software on the Bentley Microstation platform. The object of the research is the campus of the territory of the Federal State Budgetary Educational Institution of Higher Education “Kuban State Technological University”. The subject of the research is the possibility of optimizing the process of classification of laser reflection points on the campus of the university territory. The result of the study is the author’s algorithm for the classification of laser reflection points.

2021 ◽  
Vol 11 (3) ◽  
pp. 5-15
Author(s):  
Svetlana Degtyareva ◽  
Valentina Dorofeeva ◽  
Yuliya Chekmeneva

The results of the analysis of Quercus L. species stored in the herbarium of the Department of Botany and Plant Physiology of Federal State Budget Educational Institution of Higher Education VSUFT (Voronezh) are presented. This herbarium of historical plant collections of the genus Quercus L. is critical for tracking changes in the genus, including the introduction and distribution of species. We examined the belonging of the species to systematic units – subgenus, section, subsection, row, using the traditional classification and the updated intrageneric classification of oaks. Information about the life form, plant height, date and place of collection of the specimen was recorded. We entered information into the database, which will further simplify the work on registration, revision of the herbarium fund and when replenishing herbarium specimens. Conclusions were drawn based on the results of the workabout changes in the taxonomic nature and phylogenetic relationships of species in Quercus L. genus


Author(s):  
Elena E. Morozova ◽  
◽  
Nikolay V. Sayapin ◽  
Maria P. Zinovyeva ◽  
◽  
...  

The results of the international forum “Humanization of the educational space – 2021: digitalization of the educational environment”, which was held on February 18–19, 2021 in Saratov, are presented. The conference was organized by the Federal State Budgetary Educational Institution of Higher Education “Saratov National Research State University named after N. G. Chernyshevsky”, the Faculty of Pedagogical and Special Needs Education; Federal State Budgetary Scientific Institution “Institute for the Study of Childhood, Family and Education of the Russian Academy of Education”; Baranovichi State University (Republic of Belarus); West Kazakhstan Innovation and Technological University (Republic of Kazakhstan); Fergana State University (Republic of Uzbekistan).


2018 ◽  
Vol 8 (2) ◽  
pp. 20170039 ◽  
Author(s):  
Zhan Li ◽  
Michael Schaefer ◽  
Alan Strahler ◽  
Crystal Schaaf ◽  
David Jupp

The Dual-Wavelength Echidna Lidar (DWEL), a full waveform terrestrial laser scanner (TLS), has been used to scan a variety of forested and agricultural environments. From these scanning campaigns, we summarize the benefits and challenges given by DWEL's novel coaxial dual-wavelength scanning technology, particularly for the three-dimensional (3D) classification of vegetation elements. Simultaneous scanning at both 1064 nm and 1548 nm by DWEL instruments provides a new spectral dimension to TLS data that joins the 3D spatial dimension of lidar as an information source. Our point cloud classification algorithm explores the utilization of both spectral and spatial attributes of individual points from DWEL scans and highlights the strengths and weaknesses of each attribute domain. The spectral and spatial attributes for vegetation element classification each perform better in different parts of vegetation (canopy interior, fine branches, coarse trunks, etc.) and under different vegetation conditions (dead or live, leaf-on or leaf-off, water content, etc.). These environmental characteristics of vegetation, convolved with the lidar instrument specifications and lidar data quality, result in the actual capabilities of spectral and spatial attributes to classify vegetation elements in 3D space. The spectral and spatial information domains thus complement each other in the classification process. The joint use of both not only enhances the classification accuracy but also reduces its variance across the multiple vegetation types we have examined, highlighting the value of the DWEL as a new source of 3D spectral information. Wider deployment of the DWEL instruments is in practice currently held back by challenges in instrument development and the demands of data processing required by coaxial dual- or multi-wavelength scanning. But the simultaneous 3D acquisition of both spectral and spatial features, offered by new multispectral scanning instruments such as the DWEL, opens doors to study biophysical and biochemical properties of forested and agricultural ecosystems at more detailed scales.


Perception ◽  
1993 ◽  
Vol 22 (2) ◽  
pp. 131-152 ◽  
Author(s):  
Vicki Bruce ◽  
A Mike Burton ◽  
Elias Hanna ◽  
Pat Healey ◽  
Oli Mason ◽  
...  

People are remarkably accurate (approaching ceiling) at deciding whether faces are male or female, even when cues from hairstyle, makeup, and facial hair are minimised. Experiments designed to explore the perceptual basis of our ability to categorise the sex of faces are reported. Subjects were considerably less accurate when asked to judge the sex of three-dimensional (3-D) representations of faces obtained by laser-scanning, compared with a condition where photographs were taken with hair concealed and eyes closed. This suggests that cues from features such as eyebrows, and skin texture, play an important role in decisionmaking. Performance with the laser-scanned heads remained quite high with 3/4-view faces, where the 3-D shape of the face should be easiest to see, suggesting that the 3-D structure of the face is a further source of information contributing to the classification of its sex. Performance at judging the sex from photographs (with hair concealed) was disrupted if the photographs were inverted, which implies that the superficial cues contributing to the decision are not processed in a purely ‘local’ way. Performance was also disrupted if the faces were shown in photographic negatives, which is consistent with the use of 3-D information, since negation probably operates by disrupting the computation of shape from shading. In 3-D, the ‘average’ male face differs from the ‘average’ female face by having a more protuberant nose/brow and more prominent chin/jaw. The effects of manipulating the shapes of the noses and chins of the laser-scanned heads were assessed and significant effects of such manipulations on the apparent masculinity or femininity of the heads were revealed. It appears that our ability to make this most basic of facial categorisations may be multiply determined by a combination of 2-D, 3-D, and textural cues and their interrelationships.


Retos ◽  
2017 ◽  
pp. 158-162
Author(s):  
Jaime Carcamo-Oyarzun ◽  
Georg Wydra ◽  
Claudio Hernandez-Mosqueira ◽  
Cristian Martinez-Salazar

El presente estudio tiene como objetivo analizar y comparar las actitudes hacia la educación física de escolares chilenos y alemanes, centrándose en el grado de importancia que ellos le otorgan a la asignatura y en el grado de conformidad que tienen con las clases que están recibiendo, según país, género y curso. Fueron encuestados 2.748 escolares de las regiones de la Araucanía en Chile (50%), y del Sarre en Alemania (50%). Se utilizó el “Cuestionario de Actitudes de los Escolares hacia la Educación Física”, elaborado y validado por el Instituto de Ciencias del Deporte de la Universidad del Sarre de Alemania. Los resultados indican que la mayoría de los escolares presentan actitudes positivas hacia la educación física. Se encontraron diferencias significativas entre el alumnado de ambos países, en donde los escolares de Chile le otorgan un mayor grado de importancia a la educación física que los escolares de Alemania, mientras que los escolares alemanes manifiestan un mayor grado de conformidad hacia la educación física que los escolares chilenos. Se establece que los varones le otorgan mayor importancia a la educación física que las damas, mientras que en el grado de conformidad estas diferencias según sexo no se presentan. Por último, se confirma que a medida que va aumentando la edad estas apreciaciones favorables hacia la educación física disminuyen. Los resultados de esta investigación indican que existe una favorable disposición del alumnado hacia la educación física, la cual se debe aprovechar para lograr mejores aprendizajes.Abstract: The object of the present study was to analyze and compare attitudes towards physical education among Chilean and German schoolchildren, concentrating on the degree of importance that they attribute to the subject and their degree of conformance with the classes that they receive, by country, gender, and school grade. A survey was applied to 2,748 schoolchildren in the Araucanía Region of Chile (50%) and the federal state of Saarland in Germany (50%). The survey used the “Questionnaire on Schoolchildren's Attitudes to Physical Education”, drafted and validated by the Institute of Sport Sciences of the University of Saarland in Germany. Results indicate that the majority of schoolchildren present positive attitudes towards physical education. Significant differences were found between pupils from the two countries: schoolchildren in Chile attribute a greater degree of importance to physical education than those in Germany, while German schoolchildren express a greater degree of conformance with physical education than Chileans. It was found that boys attribute greater importance to physical education than girls, but that no gender differences exist regarding the degree of conformance. Finally, it was found that as children advance in age, favorable opinions on physical education diminish. The results of this work indicate that pupils have a favorable disposition towards physical education, which should be exploited to increase learning.


Litera ◽  
2021 ◽  
pp. 55-63
Author(s):  
Natal'ya Fedotova

This article examines the transformation of cultural function of the libraries of pedagogical universities, considering challenges and changes in the digital educational environment. Leaning on the modern scientific research on creation and content arrangement of web resources, the author analyzes the libraries of 37 pedagogical universities nationwide, as well as interrelation between cultural function and thematic headings. The object of this research is the description of peculiarities of implementing cultural function of the library in the common information space of an educational institution. The subject of this research is the virtual book exhibitions as an instrument of promoting publishing projects and a synthesis of traditional and innovative ways of conveying information to the readers. The main conclusions are as follows: in implementation of cultural function, the university library pursues the goal development of spiritual and moral personality traits. The libraries make a considerable contribution to the becoming and socialization of an individual by preserving and augmenting cultural wealth of literary sources. The implementation of cultural function should take into account the abundance and availability of information in modern world. The stylistics of messages and sources does not always correspond to generally accepted norms and morals. The libraries also aim to draw interest to cultural environment and develop the in skills of working with literary sources among the readers, as well as form a deliberate cultural assessment of the surrounding reality.


Author(s):  
X. Roynard ◽  
J.-E. Deschaud ◽  
F. Goulette

Change detection is an important issue in city monitoring to analyse street furniture, road works, car parking, etc. For example, parking surveys are needed but are currently a laborious task involving sending operators in the streets to identify the changes in car locations. In this paper, we propose a method that performs a fast and robust segmentation and classification of urban point clouds, that can be used for change detection. We apply this method to detect the cars, as a particular object class, in order to perform parking surveys automatically. A recently proposed method already addresses the need for fast segmentation and classification of urban point clouds, using elevation images. The interest to work on images is that processing is much faster, proven and robust. However there may be a loss of information in complex 3D cases: for example when objects are one above the other, typically a car under a tree or a pedestrian under a balcony. In this paper we propose a method that retain the three-dimensional information while preserving fast computation times and improving segmentation and classification accuracy. It is based on fast region-growing using an octree, for the segmentation, and specific descriptors with Random-Forest for the classification. Experiments have been performed on large urban point clouds acquired by Mobile Laser Scanning. They show that the method is as fast as the state of the art, and that it gives more robust results in the complex 3D cases.


Author(s):  
Igor Florinsky

Topography is the most important component of the geographical shell, one of the main elements of geosystems, and the framework of a landscape. geomorphometry is a science, the subject of which is modeling and analyzing the topography and the relationships between topography and other components of geosystems. Currently, the apparatus of geomorphometry is widely used to solve various multi-scale problems of the Earth sciences. As part of the RFBR competition “Expansion”, we present an analytical review of the development of theory, methods, and applications of geomorphometry for the period of 2016–2021. For the analysis, we used a sample of 485 of the strongest and most original papers published in international journals belonging to the JCR Web of Science Core Collection quartile I and II (Q1–Q2), as well as monographs from leading international publishers. We analyze factors caused a progress in geomorphometry in recent years. These include widespread use of unmanned aerial survey and digital photogrammetry, development of tools and methods for survey of submarine topography, emergence of new publicly available digital elevation models (DEMs), development of new methods of DEM preprocessing for their filtering and noise suppression, development of methods of two-dimensional and three-dimensional visualization of DEMs, introduction of machine learning techniques, etc. We consider some aspects of the geomorphometric theory developed in 2016–2021. In particular, a new classification of morphometric values is presented. We discuss new computational methods for calculating morphometric models from DEM, as well as the problems facing the developers and users of such methods. We consider application of geomorphometry for solving multiscale problems of geomorphology, hydrology, soil science, geology, glaciology, speleology, plant science and forestry, zoogeography, oceanology, planetology, landslide studies, remote sensing, urban studies, and archaeology.


2021 ◽  
Vol 27 (6) ◽  
pp. 330-336
Author(s):  
K. E. Izrailov ◽  

We consider the problem of classifying the vulnerabilities present in interface devices that are used in the interaction of people and components of the transport infrastructure of the Smart City. A conceptual model of the terminological base of the subject area is introduced, on the basis of which a unified classification of vulnerabilities is synthesized. A formal record of vulnerability classes is given, as well as their examples.


2021 ◽  
Vol 970 (4) ◽  
pp. 45-53
Author(s):  
D.A. Gura ◽  
I.G. Markovskii ◽  
S.K. Pshidatok

The purpose of this work is to develop a methodology for monitoring real estate objects, as a single information block, by including this procedure for capital construction objects in the process of land use control to update the information contained in state systems. The object of the research is the systems of state monitoring of land use based on the automated information system of state monitoring of land and registration of immovable objects based on the federal state information system of the Unified State Register of Real Estate. The subject of the work is creation a concept for a system of monitoring immovable objects, as a single resource, by introducing a monitoring unit for capital construction ones. As a result of the research, the stages of the method implementation are described, the key users of the final monitoring system for real estate objects are presented and options for its practical application are indicated.


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