European Interdisciplinary Cybersecurity Conference最新文献_第4页

Adaptive Quad Mesh Simplification 自适应四边形网格简化

European Interdisciplinary Cybersecurity Conference Pub Date : 2010-12-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2010/095-102

Agostino Bozzo, Daniele Panozzo, E. Puppo, N. Pietroni, Luigi Rocca

引用次数: 8

Preparation of Finite Element Models: The Use of an a Posteriori Mechanical Criterion 有限元模型的制备:后验力学准则的使用

European Interdisciplinary Cybersecurity Conference Pub Date : 2006-03-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/205-211

R. Ferrandes, P. Marin, J. Léon, F. Giannini

{"title":"Preparation of Finite Element Models: The Use of an a Posteriori Mechanical Criterion","authors":"R. Ferrandes, P. Marin, J. Léon, F. Giannini","doi":"10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/205-211","DOIUrl":"https://doi.org/10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/205-211","url":null,"abstract":"A geometrical model needs to be simplified to perform a FE (Finite Element) analysis. Several tasks of shape processing are required during the FE model preparation phase. An appropriate geometric model and a suitable set of geometric and mechanical operators may significantly improve the efficiency of the whole process. Our approach is based on the use of a reference geometric model that is the polyhedral representation of a component. To simplify the component shape, we utilize some geometric operators associated to mechanical hypotheses, so that all the component shape changes take into account the mechanical hypotheses related to the FE model. Since a priori criteria acting before the FEM solving process cannot efficiently quantify the influence of a shape simplification on the accuracy of FE simulation results, a mechanical a posteriori criterion has been implemented, which analyses the impact of shape changes on the simulation to tune the simplification process. Therefore, we perform a first FE computation on the simplified model and use the results to assess the mechanical influence of shape simplifications that have acted on the model. If some details prove to have influence on the mechanical behaviour, the model on which the FE analysis is performed needs to be redefined. Therefore, we are able to adapt the model according to a desired accuracy of the analysis results. In this article, we describe all the process that has to beset up to perform this adaptive modelling of components.","PeriodicalId":405486,"journal":{"name":"European Interdisciplinary Cybersecurity Conference","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114680740","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

Easy Access to Huge 3D Models of Works of Art 轻松访问艺术作品的巨大3D模型

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/029-035

M. Callieri, F. Ponchio, Paolo Cignoni, Roberto Scopigno

{"title":"Easy Access to Huge 3D Models of Works of Art","authors":"M. Callieri, F. Ponchio, Paolo Cignoni, Roberto Scopigno","doi":"10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/029-035","DOIUrl":"https://doi.org/10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/029-035","url":null,"abstract":"Automatic shape acquisition technologies evolved rapidly in recent years, and huge mass of 3D data can be easily produced. The high accuracy of range scanning technology makes the Cultural Heritage domain one of the ideal ﬁelds of use of these devices. Given this particular application domain, two issues arise: how to visualize at interactive rates these complex data on commodity computers (both locally and on web), and how to improve the ease of use of the visualization tools (as potential users are often not expert with interactive graphics). We present a new visualization system designed to support easy implementation of multimedia kiosk for museums or expositions, which has also been extended to web-based usage. The system allows naive users to inspect a large complex 3D model at interactive frame rates on off-the-shelf PC’s, presenting the 3D model and all the multimedia data that has been linked to selected points of its surface. A main goal in the design of the system was to provide the user with a very easy and natural interaction approach, based on a straightforward “point and click” metaphor. Visualization efﬁciency is obtained by adopting a continuous level-of-detail (LOD) representation, where on-line automatic selection of the best-ﬁt level of detail (according to the current view frustum) is coupled with visibility culling and ready-to-render representation of the geometry.","PeriodicalId":405486,"journal":{"name":"European Interdisciplinary Cybersecurity Conference","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115718337","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: 7

Gestural Interaction for Robot Motion Control 机器人运动控制中的手势交互

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2011/061-066

Giuseppe Broccia, Marco Livesu, R. Scateni

引用次数: 10

A New Descreening Technique in the Frequency Domain 一种新的频域去滤波技术

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/137-142

S. Battiato, F. Stanco

引用次数: 3

Rendering Order Optimization for SVGStat Improvement SVGStat改进的渲染顺序优化

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2007/065-071

S. Battiato, G. Puglisi

引用次数: 0

A Survey on Exploiting Grids for Ray Tracing 利用网格进行光线追踪的研究进展

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2008/089-096

Biagio Cosenza

引用次数: 11

Environment based on Augmented Reality and Interactive Simulation for Product Design Review 基于增强现实和交互仿真的产品设计评审环境

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2008/027-034

M. Bordegoni, F. Ferrise, M. Ambrogio, G. Caruso, F. Bruno, F. Caruso

{"title":"Environment based on Augmented Reality and Interactive Simulation for Product Design Review","authors":"M. Bordegoni, F. Ferrise, M. Ambrogio, G. Caruso, F. Bruno, F. Caruso","doi":"10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2008/027-034","DOIUrl":"https://doi.org/10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2008/027-034","url":null,"abstract":"The aesthetic impact of a product is an important parameter that makes the difference among products technologically similar and with same functionalities. Product shape, which is strictly connected to the aesthetic impact, has different meanings if seen from the design and the engineering point of view. The conceptual design of shape of aesthetic products is usually performed by designers at the beginning of the product development cycle. Subsequent engineering design and studies, such as structural and fluid-dynamic analyses, lead to several design reviews where the original shape of the object is often modified. The design review process is time consuming, requires the collaboration and synchronization of activities performed by various experts having different competences and roles, and is performed using different tools and different product representations. Then, computer aided tools supporting conceptual design and analysis activities within the same environment are envisaged. The paper presents the conceptual description of an environment named PUODARSI that allows designers to modify the shape of a product and evaluate in real-time the impact of these changes on the results of the structural and fluid dynamic analyses in an Augmented Reality (AR) collaborative environment. Main problems in integrating tools developed for different purposes, such as, haptic interaction, FEM and CFD analyses, AR visualization concern the feasibility of the integration, the data exchange, and the choice of those algorithms that allow all that while guaranteeing low computational time. The paper describes the main issues related to the choice of hardware and software technologies, and the PUODARSI system implementation.","PeriodicalId":405486,"journal":{"name":"European Interdisciplinary Cybersecurity Conference","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123202366","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

A study on textures and their perceptual visual dimensions as application for flexible and effective scientific visualization 纹理及其感知视觉维度的研究，为灵活有效的科学可视化提供应用

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/123-127

Francesca Taponecco

引用次数: 1

Use of Shader Technology for Realistic Presentation of Train Prototypes in Virtual Reality 使用Shader技术在虚拟现实中逼真地呈现火车原型

European Interdisciplinary Cybersecurity Conference Pub Date : 1900-01-01 DOI: 10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/105-109

G. Gironimo, S. Papa

{"title":"Use of Shader Technology for Realistic Presentation of Train Prototypes in Virtual Reality","authors":"G. Gironimo, S. Papa","doi":"10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/105-109","DOIUrl":"https://doi.org/10.2312/LocalChapterEvents/ItalChap/ItalianChapConf2006/105-109","url":null,"abstract":"The aim of the paper is to make up a virtual showroom and work-through of a train model in order to allow railway companies showing new trains prototypes, in phase of concept, and present their new design in more exhaustive way than simply technical documentation. The possibility of applying Virtual Reality (VR) methodologies to make a scene more realistic as possible is a great advantage for the effectiveness of the presentation, in order to increase their competitivity. Shader technology allows the programmers to have control over shape, appearance (such as colour, lighting, reflection) and animation of objects, in order to make very realistic real-time rendering. In the paper the authors describe the use of shader technology in Virtual Design 2 (VD2) for realistic presentation of train prototypes in VR. The software VD2 is an extensive tool that allows following many phases of product development, from the creation of showroom for realistic presentations supporting shader technology to the assembly simulation or ergonomics analysis. Moreover, the possibility of interfacing with a wide range of input/output devices and the possibility to access to the API made this software to be chosen for Virtual Reality applications in the VR laboratory of the Competence Center for the Qualification of Transportation Systems founded by Campania Region (www.centrodicompetenzatrasporti.unina.it).","PeriodicalId":405486,"journal":{"name":"European Interdisciplinary Cybersecurity Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125588692","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: 3