Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2最新文献_第10页

Solving the Problem of Packing Objects of Complex Geometric Shape into a Container of Arbitrary Dimension 求解复杂几何形状物体装入任意尺寸容器的问题

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-3-50

V. Chekanin

{"title":"Solving the Problem of Packing Objects of Complex Geometric Shape into a Container of Arbitrary Dimension","authors":"V. Chekanin","doi":"10.51130/graphicon-2020-2-3-50","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-3-50","url":null,"abstract":"The article is devoted to algorithms developed for solving the problem of placement orthogonal polyhedrons of arbitrary dimension into a container. To describe all free areas of a container of complex geometric shape is applied the developed model of potential containers. Algorithms for constructing orthogonal polyhedrons and their subsequent placement are presented. The decomposition algorithm intended to reduce the number of orthogonal objects forming an orthogonal polyhedron is described in detail. The proposed placement algorithm is based on the application of intersection operations to obtain the areas of permissible placement of each considered object of complex geometric shape. Examples of packing sets of orthogonal polyhedrons and voxelized objects into containers of various geometric shapes are given. The effectiveness of application of all proposed algorithms is presented on an example of solving practical problems of rational placement of objects produced by 3D printing technology. The achieved layouts exceed the results obtained by the Sinter module of the software Materialise Magics both in speed and density.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127505198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Ergonomic Factors in Patenting Computer Systems for Personnel's Selection and Training 计算机专利系统中人的选择与培训中的人机工程学因素

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-4-51

Valery Spasennikov, Kiril Androsov, G. Golubeva

{"title":"Ergonomic Factors in Patenting Computer Systems for Personnel's Selection and Training","authors":"Valery Spasennikov, Kiril Androsov, G. Golubeva","doi":"10.51130/graphicon-2020-2-4-51","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-4-51","url":null,"abstract":"The authors identify ergonomic factors related to the composition, structure and typical functions in the process of taking into account the criteria for the protection of inventions when patenting technical solutions in the field of professional selection and training of operators and drivers of military and civil man-machine complexes. The article describes the ergonomic capabilities of selection methods and devices, technical results from the introduction of virtual, hardware-software and computer simulators for training welders, locomotive drivers, radar systems' operators, operator of remotely piloted aircraft, vehicles' mechanics-drivers. For the selection of patents in subclasses of inventions, criteria for expert evaluation of their ergonomics were first proposed based on such criteria as manageability, serviceability and usability.in total, three experts were involved, and the consistency of the solution (the concordance coefficient) during selection was w=0.67. In advanced research related to the construction of automated patent search systems, it is necessary to develop decisive rules for the selection of inventions. The authors of the article plan to develop criteria for the ergonomics of selected inventions for further analysis of promising systems for selecting and training specialists in such IPC categories as G09B9/00, G06F15/20 and A61B5/16.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129933892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Light Reflection from Real Surfaces: Probabilistic Model of the Layer Radiance Factor 真实表面的光反射:层辐射系数的概率模型

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-4-37

V. Budak, A. Grimailo

引用次数: 2

Modeling the Deformation of the Aerodynamic Surface to Estimate the Error of the Photogrammetric Algorithm 对气动曲面的变形进行建模以估计摄影测量算法的误差

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-4-6

A. Poroykov, Ilina, E. Shmatko

{"title":"Modeling the Deformation of the Aerodynamic Surface to Estimate the Error of the Photogrammetric Algorithm","authors":"A. Poroykov, Ilina, E. Shmatko","doi":"10.51130/graphicon-2020-2-4-6","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-4-6","url":null,"abstract":"In-flight measurements are one of the directions of aircraft testing which has been developed actively recently. Creation of a flight laboratory based on an unmanned vehicle to reduce the cost of developing and analysis techniques for in-flight measurements is proposed. For the laboratory an onboard system for recording experimental images during a flight was developed. It was decided to conduct computer modeling of images that can be obtained using the developed system for its verification. Unity a cross-platform photorealistic graphic engine with visual integrated development environment was chosen for this purpose. For modeling both external and internal real camera parameters, including distortion coefficients, and parameters of the measured surface could be preassigned. The developed methodology for computer modeling of images of the deformable surface allows to evaluate the accuracy of various algorithms for processing experimental images, as well as the influence of the parameters of the experimental setup on the error of the measurements results.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"341 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132033891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visualization of the Stress-Strain State of Shell Structures Using Virtual and Augmented Reality Technologies 基于虚拟和增强现实技术的壳结构应力-应变状态可视化

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-3-13

A. Semenov, Iu.N. Zgoda

{"title":"Visualization of the Stress-Strain State of Shell Structures Using Virtual and Augmented Reality Technologies","authors":"A. Semenov, Iu.N. Zgoda","doi":"10.51130/graphicon-2020-2-3-13","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-3-13","url":null,"abstract":"The paper describes a mathematical model of changes in the geometry of thin-shell structures for visualization of the analysis data on their stress-strain state (SSS). Based on this mathematical model, a visualization module for shell SSS visualization using VR and AR technologies was developed. The interactive visualization environment Unity 2019.3 and C# programming language were used. The interactive visualization module makes a 3D image of a shell structure and visualizes the SSS either through heat maps over the shell or through the changes in the shell geometry on the basis of the shell type, its geometric characteristics, and SSS analysis data (transferred to the visualization module by means of a JSON file). While working on the visualization module, the authors developed a system of components that makes it possible to visualize any 3D surface with coordinate axes (including numbers with a pitch determined automatically), visualize heat maps with a graduated scale, visualize a mesh over the graph to improve the perception of the surface deformations. The middle surface can also be deformed on the basis of SSS analysis data. This solution increases the efficiency of the work of specialists in civil engineering and architecture and can be used when training specialists in courses on thin-shell structures and procedural geometry.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123853350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of Internal Waves Off the Coast of Morocco According to Earth Remote Sensing Data 根据地球遥感资料测定摩洛哥海岸外内波

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-4-24

T. Tatarnikova, I. Martyn, S. Stepanov, Y. Petrov, A. Sidorenko

{"title":"Determination of Internal Waves Off the Coast of Morocco According to Earth Remote Sensing Data","authors":"T. Tatarnikova, I. Martyn, S. Stepanov, Y. Petrov, A. Sidorenko","doi":"10.51130/graphicon-2020-2-4-24","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-4-24","url":null,"abstract":"This paper presents the results of a study of the internal wave isolation of the Northern coast of Morocco using synthetic aperture radar (SAR) images. A filter is applied to the remote sensing data to reduce the image grain, after which the direction of propagation of the wave is determined and its length is calculated. In most cases, internal waves appear on satellite images as quasi-periodic linear structures whose brightness is lower or higher than the background, which is well registered in the visible range and by synthetic aperture radar. When analyzing images off the coast of Morocco, internal waves were detected, the wave packet propagates in the direction from West to East. When comparing the obtained images with the bottom relief map, it can be assumed that the generation of internal waves is caused by the roughness of the bottom near the Northern coast of Morocco. The maximum wave length in the wave packet is almost 0.7 km, consists of at least 5 solitons, the prints of these solitons in the sea roughness area are visible in the images mainly in the Central part of a wave packet, the distance between a wave packet solitons is different. The wavelength decreases when moving to the back of a wave packet, which can be traced by changing the contrast on the site. As a result, internal waves were detected off the Northern coast of Morocco in rads images with a synthesized aperture, and the main characteristics of these waves were determined.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114187490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two Machine Learning Based Schemes for Solving Direct and Inverse Problems of Radiative Transfer Theory 两种基于机器学习的辐射传递理论正反问题求解方案

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-3-45

D. Efremenko, Himani Jain, Jian Xu

{"title":"Two Machine Learning Based Schemes for Solving Direct and Inverse Problems of Radiative Transfer Theory","authors":"D. Efremenko, Himani Jain, Jian Xu","doi":"10.51130/graphicon-2020-2-3-45","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-3-45","url":null,"abstract":"Artificial neural networks (ANNs) are used to substitute computationally expensive radiative transfer models (RTMs) and inverse operators (IO) for retrieving optical parameters of the medium. However, the direct parametrization of RTMs and IOs by means of ANNs has certain drawbacks, such as loss of generality, computations of huge training datasets, robustness issues etc. This paper provides an analysis of different ANN-related methods, based on our results and those published by other authors. In particular, two techniques are proposed. In the first method, the ANN substitutes the eigenvalue solver in the discrete ordinate RTM, thereby reducing the computational time. Unlike classical RTM parametrization schemes based on ANN, in this method the resulting ANN can be used for arbitrary geometry and layer optical thicknesses. In the second method, the IO is trained by using the real measurements (preprocessed Level-2 TROPOMI data) to improve the stability of the inverse operator. This method provides robust results even without applying the Tikhonov regularization method.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129698489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact Factor of a Term: a Tool for Assessing Article's Future Citations and Author's Influence Based on PubMed and DBLP Collections 一个术语的影响因子:基于PubMed和DBLP馆藏评估文章未来引用和作者影响力的工具

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-3-74

M. Charnine, Aida Khakimova, A. Klokov

{"title":"Impact Factor of a Term: a Tool for Assessing Article's Future Citations and Author's Influence Based on PubMed and DBLP Collections","authors":"M. Charnine, Aida Khakimova, A. Klokov","doi":"10.51130/graphicon-2020-2-3-74","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-3-74","url":null,"abstract":"This article describes a new bibliometric indicator called Impact Factor of a Term (IFT) that helps to predict future impact of scientific works and/or the author. The predictive properties of IFT are proven by two examples of different collections of scientific articles. It is shown that the correlations of the current and future IFT values depending on the trend are practically similar for both collections. The graphs of IFT correlations of the current and future years depending on the number of articles with the word/term are presented. The graphs show that the higher the current frequency of the term and the number of articles with this term, the greater the correlation and stability of IFT. The stability of IFT helps to accurately predict the number of future citations. The list of the most informative words/terms with the largest total values of IFT multiplied by the current frequency is analyzed. It has been shown that the size of collection affects the stability and predictive properties of IFT. The words and terms with high IFT values allow us to judge the future impact of an article and its author based on the prediction of future citations. Such words also help identify promising research directions.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"89 13","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120820699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Finite Element Modeling and Visualization of Additive Ring Growing by 3DMP Method 加性环生长的三维建模与可视化

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-4-40

A. Kirichek, S. Barinov, S. Fedonina

{"title":"Finite Element Modeling and Visualization of Additive Ring Growing by 3DMP Method","authors":"A. Kirichek, S. Barinov, S. Fedonina","doi":"10.51130/graphicon-2020-2-4-40","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-4-40","url":null,"abstract":"The aim of the work is to obtain a finite element model of the additive growing process in the general case of a complex-shaped product using the 3DMP (3D Metal Print) method of wire deposition / surfacing by gas metal arc welding, visualization of the forming temperature fields. The problem is solved using the example of an elementary ring by creating a scalable model in the Ansys software package. The stages of creating a finite element model as well as the results of its approbation in the analysis of temperatures are given. The model visualizes the nature of the influence of the deposition / surfacing parameters on the temperature fields that are formed and dynamically change with the movement of the wire feedstock. In this case, the conditions of additive free shaping of a closed-form product are of no small importance. It becomes possible to visually assess the degree of heating and the volume of heated metal in the hazardous area, proceed further to the calculation of stress and strain fields in the grown product, and choose the correct technological parameters of the process. The obtained visual information makes it possible to perform a qualitative and quantitative assessment of the additive shaping result, to determine the required intensity of heat removal, which contributes to the grown product quality improvement as a whole.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125654790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

What is and What is not the Digital Earth 什么是数字地球，什么不是

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2 Pub Date : 2020-12-17 DOI: 10.51130/graphicon-2020-2-3-47

E. Eremchenko

{"title":"What is and What is not the Digital Earth","authors":"E. Eremchenko","doi":"10.51130/graphicon-2020-2-3-47","DOIUrl":"https://doi.org/10.51130/graphicon-2020-2-3-47","url":null,"abstract":"The article addresses to a fundamental issue facing the concept of the Digital Earth in 2020 – what is the definition of the Digital Earth? 22 years after the announcement of the concept and 15 years after its first mass and successful implementation in the service Google Earth in 2005 this question remains unanswered. In the article the current status of the development of the Digital Earth concept by 2020 is considered, a methodology for the definition of the Digital Earth, based on the classification of the diversity of existing geospatial approaches and the identification of key factors that provide its unique functionality, is proposed and discussed. Distinction between the Digital Earth and others geospatial approaches is provided. The intrinsic connection of definition and classifications is grounded, the new definition of the Digital Earth and complimentary classification of geospatial methods are offered. Semiotics aspects of the Digital Earth are discussed briefly. The question of the eligibility of technologies and systems to the Digital Earth is considered. The perspective issues of further development of the Digital Earth are considered.","PeriodicalId":344054,"journal":{"name":"Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5