IEEE Conference on Visual Analytics Science and Technology最新文献_第4页

Virtual Heritage in the Cloud: New Perspectives for the Virtual Museum of Bologna 云中的虚拟遗产:博洛尼亚虚拟博物馆的新视角

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2011-10-18 DOI: 10.2312/VAST/VAST11/153-160

Nicola Lercari, Elena Toffalori, M. Spigarolo, Llonel Onsurez

{"title":"Virtual Heritage in the Cloud: New Perspectives for the Virtual Museum of Bologna","authors":"Nicola Lercari, Elena Toffalori, M. Spigarolo, Llonel Onsurez","doi":"10.2312/VAST/VAST11/153-160","DOIUrl":"https://doi.org/10.2312/VAST/VAST11/153-160","url":null,"abstract":"This paper focuses on the integration of Cloud computing tools and user-generated content into an online cultural virtual environment. Our investigation aimed to clarify whether the Metaverse can be used as a spatial interface for aggregation and synestetic visualization of heterogeneous cultural data distributed in the Cloud. The case study we adopted is Nu.M.E. 2010 a virtual reconstruction of Piazza di Porta Ravegnana, a crucial area of late medieval Bologna (Italy), published on the platform Second Life (SL). A newfound awareness and appreciation for the new epistemic scenario introduced by Cloud computing and virtualization techniques has raised the following methodological questions: can Cloud computing help optimize the communication strategy and educational effectiveness of cultural data online? Can historical research and cultural data interpretation benefit from collaborative annotation and user-generated content? The described application entailed the use within SL of some of the most popular virtualization services: Google Maps, Panoramio, Google Docs, and Google Warehouse. The results of our testing activity suggest that Cloud services currently available are in fact useful tools for reshaping an online virtual space into an effective collaborative place, allowing users to share content, take an active part in the interpretation process and, most importantly, to provide valid feedback for cultural reception analysis.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114792032","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: 14

The Digital 3D Survey as Standard Documentation of the Archaeological Stratigraphy 数字三维测量作为考古地层学标准文献

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2011-10-18 DOI: 10.2312/VAST/VAST11/145-152

A. Fiorini, Alberto Urcia, V. Archetti

引用次数: 8

Reassembling Thin Artifacts of Unknown Geometry 重组未知几何形状的薄工件

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2011-10-18 DOI: 10.2312/VAST/VAST11/049-056

Geoffrey Oxholm, K. Nishino

{"title":"Reassembling Thin Artifacts of Unknown Geometry","authors":"Geoffrey Oxholm, K. Nishino","doi":"10.2312/VAST/VAST11/049-056","DOIUrl":"https://doi.org/10.2312/VAST/VAST11/049-056","url":null,"abstract":"We introduce a novel reassembly method for fragmented, thin objects that uses minimal user interaction. Unlike past methods, we do not make any restrictive assumptions about the geometry or texture of the object. To do so, we exploit the geometric and photometric similarity along and across the boundaries of matching fragments, and leverage user feedback to tackle the otherwise ill-posed problem. We begin by encoding the scale variability of each fragment's boundary contour in a multi-channel, 2D representation. Using this multi-channel boundary contour representation, we identify matching sub-contours via 2D partial image alignment. We then align the fragments by minimizing the distance between their adjoining regions while simultaneously ensuring geometric continuity across them. The configuration of the fragments as they are incrementally matched and aligned form a graph structure. By detecting cycles in this graph, we identify subsets of fragments with dependent alignments. We then minimize the error within the subsets to achieve a globally optimal alignment. Using ceramic pottery as the driving example, we demonstrate the accuracy and efficiency of our method on six real-world datasets.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"7 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129436108","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: 17

Global Consistency in the Automatic Assembly of Fragmented Artefacts 碎片工件自动装配中的全局一致性

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2011-10-18 DOI: 10.2312/VAST/VAST11/073-080

Antonio García Castañeda, Benedict J. Brown, S. Rusinkiewicz, T. Funkhouser, T. Weyrich

{"title":"Global Consistency in the Automatic Assembly of Fragmented Artefacts","authors":"Antonio García Castañeda, Benedict J. Brown, S. Rusinkiewicz, T. Funkhouser, T. Weyrich","doi":"10.2312/VAST/VAST11/073-080","DOIUrl":"https://doi.org/10.2312/VAST/VAST11/073-080","url":null,"abstract":"Automatic reconstruction of fragmented objects is of great interest in archaeology, where artefacts are often found in a fractured state. In this paper, we focus on the problem of automatically agglomerating clusters of fragments from previously determined pairwise matches. Common to any automated cluster agglomeration technique is the challenge of error accumulation, making it increasingly difficult to discern false from true matches as the assembly grows. Many assembly algorithms therefore introduce a global relaxation phase to distribute alignment errors evenly across the cluster, minimising major inconsistencies. Nevertheless, error accumulation limits the problem size automated assembly systems can handle in practice. In this paper we show how two careful modifications of the traditional relaxation scheme help lift this limit considerably. In contrast to previous work, we integrate global relaxation earlier, in the search phase of the assembly process. In addition, we do not fix connections between assembled fragments, but rather leave them flexible throughout the assembly. By modifying two representative assembly algorithms, we demonstrate the effectiveness of our approach. Using the example of a challenging fresco dataset, we show that these modifications achieve larger reconstruction sizes than traditional strategies.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124323039","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: 29

High Dynamic Range Video for Cultural Heritage Documentation and Experimental Archaeology 高动态范围视频的文化遗产文献和实验考古

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/017-024

J. Happa, A. Artusi, S. Czanner, A. Chalmers

引用次数: 8

Semi-Automatic Geometry-Driven Reassembly of Fractured Archeological Objects 断裂考古文物的半自动几何驱动重组

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/033-038

Nicolas Mellado, Patrick Reuter, C. Schlick

{"title":"Semi-Automatic Geometry-Driven Reassembly of Fractured Archeological Objects","authors":"Nicolas Mellado, Patrick Reuter, C. Schlick","doi":"10.2312/VAST/VAST10/033-038","DOIUrl":"https://doi.org/10.2312/VAST/VAST10/033-038","url":null,"abstract":"3D laser scanning of broken cultural heritage content is becoming increasingly popular, resulting in large col- lections of detailed fractured archeological 3D objects that have to be reassembled virtually. In this paper, we present a new semi-automatic reassembly approach for pairwise matching of the fragments, that makes it possible to take into account both the archeologist's expertise, as well as the power of automatic geometry-driven match- ing algorithms. Our semi-automatic reassembly approach is based on a real-time interaction loop: an expert user steadily specifies approximate initial relative positions and orientations between two fragments by means of a bimanual tangible user interface. These initial poses are continuously corrected and validated in real-time by an algorithm based on the Iterative Closest Point (ICP): the potential contact surface of the two fragments is identi- fied by efficiently pruning insignificant areas of a pair of two bounding sphere hierarchies, that is combined with a k-d tree for closest vertex queries. The locally optimal relative pose for the best match is robustly estimated by taking into account the distance of the closest vertices as well as their normals. We provide feedback to the user by a visual representation of the locally optimal best match and its associated error. Our first results on a concrete dataset show that our system is capable of assisting an expert user in real-time during the pairwise matching of downsampled 3D fragments.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122280822","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: 30

Semantic Enrichment of Geographic Data and 3D Models for the Management of Archaeological Features 地理数据的语义丰富和考古特征管理的三维模型

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/115-122

A. Felicetti, M. Lorenzini, F. Niccolucci

{"title":"Semantic Enrichment of Geographic Data and 3D Models for the Management of Archaeological Features","authors":"A. Felicetti, M. Lorenzini, F. Niccolucci","doi":"10.2312/VAST/VAST10/115-122","DOIUrl":"https://doi.org/10.2312/VAST/VAST10/115-122","url":null,"abstract":"The present paper describes various technologies to link semantic information to 3D models during the process of management of 3D data and geometries used by the archaeologists for the reconstruction of ancient monuments or sites. This is an important requirement for the purposes of modern research since, although we have a lot of good 3D models of topographic objects, it is often difficult to make computers aware of the nature of the related real object (buildings, sites or landscapes) or parts of them (e.g. a column capitel and its various elements). The same difficulties occur when it is necessary to link geographic information to 3D models or to deal with metadata and annotations concerning the same elements, for which semantic technologies are required. We propose a possible way to integrate 3D data in a geographic environment and in addition to enrich 3D models by providing a set of semantic descriptions for each geometrical component of a given object, extended with semantic annotations of the model as a whole or of specific parts of it. The proposed technology is based on the use of various standards, including GML and one of its application schema, CityGML, specifically designed for the representation of 3D urban objects, and CIDOC-CRM, the cultural heritage ontology suitable for every non-structural description of each topograhic object or building, including temporal entities (events).","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124409699","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

Removing Shadows for Color Projection Using Sun Position Estimation 使用太阳位置估计去除颜色投影的阴影

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/055-062

M. Dellepiane, L. Benedetti, Roberto Scopigno

引用次数: 4

"The Approval of the Franciscan Rule" - Virtual Experience among the Characters of Giotto's Work “方济会规则的认可”——乔托作品中人物的虚拟体验

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/171-178

E. Pietroni, F. Antinucci

{"title":"\"The Approval of the Franciscan Rule\" - Virtual Experience among the Characters of Giotto's Work","authors":"E. Pietroni, F. Antinucci","doi":"10.2312/VAST/VAST10/171-178","DOIUrl":"https://doi.org/10.2312/VAST/VAST10/171-178","url":null,"abstract":"Within the exhibition \"Giotto's colours\" opened to public from the 10th of April to the 5th of September 2010 in ssisi, the National Research Council realized an innovative project creating a virtual environment from the scene \"The Rule Confirmation\", painted by Giotto in the Upper Basilica of St. Francis of ssisi at the end of the XIII century. The scene has been represented in 3D, starting from an accurate study of Giotto's space, characters, proportions and the models have been \"mapped\" using the original artistss painting. On this base two virtual reality installations have been realized. In the first one it is possible to virtually enter into the Giotto's Fresco. The scene is brought to life: characters are animated and represented while performing the action painted by the artist. Visitors can interact within the virtual space and mix with the characters without the support of traditional interfaces (mouse, joystick, keyboards, devices) but just using body movements, in a simple and natural way. In this way the space illustrated by Giotto becomes a place of experience open to multisensorial narration and participation. \u0000 \u0000On the contrary, the approach of the second installation is descriptive and interpretative, focused on the spatial and perspective investigation of Giotto's fresco, in comparison with the 3d reconstruction. The primary objective of this experiment is to involve the observer in the scene painted by Giotto and to enable the visitor to feel and understand the message that Giotto was communicating.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127725362","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: 18

Rollouts of Fine Ware Pottery using High Resolution 3D Meshes 使用高分辨率3D网格的精细陶瓷的推出

IEEE Conference on Visual Analytics Science and Technology Pub Date : 2010-09-21 DOI: 10.2312/VAST/VAST10/079-086

Sebastian Bechtold, S. Krömker, H. Mara, Bettina Kratzmüller

{"title":"Rollouts of Fine Ware Pottery using High Resolution 3D Meshes","authors":"Sebastian Bechtold, S. Krömker, H. Mara, Bettina Kratzmüller","doi":"10.2312/VAST/VAST10/079-086","DOIUrl":"https://doi.org/10.2312/VAST/VAST10/079-086","url":null,"abstract":"A common part of the documentation of archaeological finds is the drawing of so-called rollouts. Rollouts provide a complete and continuous depiction of graphical elements on the surface of rotation-symmetric objects and are especially useful for the iconographic interpretation of figurative vase painting. \u0000 \u0000In the past, rollouts were created either by manual drawing or photographically. We propose a new method to generate rollouts in which the tedious process of manual drawing or the disadvantage of having to decide on a specific projection in advance of any photographical process is replaced by the acquisition of a digital coloured surface model using a structured-light 3D scanner. This model is then used to generate high-quality rollouts with arbitrary projection parameters. \u0000 \u0000To handle curved vessel profiles, we divide the vessel's surface into multiple segments. Each segment is then approximated with a frustum which serves as a developable auxiliary surface. In the rollout generation process, the vessel's surface is projected onto a frustum's mantle, which is then developed into the image plane. The shape of each frustum is selected in such a way that projection distortions are minimized, but interrelated graphical features like figural friezes are still unrolled in one piece. To control distortion effects in rollouts of non-developable surfaces, we investigated the use of cartographic methods. \u0000 \u0000A first implementation of our method generates true-to-scale rollouts from meshes provided as PLY files and writes them to a raster image file. Our program uses off-screen OpenGL in combination with tiled rendering to generate high-resolution images which are suited for professional printing. Exemplary results from the Austrian Corpus Vasorum Antiquorum (CVA) project of the Kunsthistorisches Museum Wien (KHM - Museum of Art History in Vienna) and the Universalmuseum Joanneum Graz (UMJ) are shown.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"62 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130648377","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: 9