IEEE Conference on Visual Analytics Science and Technology最新文献

{"title":"Interactive Domitilla catacomb exploration","authors":"Claus Scheiblauer, Norbert Zimmermann, M. Wimmer","doi":"10.2312/VAST/VAST09/065-072","DOIUrl":"https://doi.org/10.2312/VAST/VAST09/065-072","url":null,"abstract":"In this paper we present an approach for interactive visualization and manipulation of huge point clouds. Archaeological monuments like the Domitilla Catacomb in Rome lead to data sets surpassing 1 Billion (109) points or 20GB of storage space, which makes standard techniques like mesh conversion or in-core point-based rendering infeasible. Our system uses an out-of-core octree structure and a number of interactive editing tools to enable many archaeological tasks to be carried out on the whole point cloud that would not be possible using traditional methods. We allow fast selection, insertion and deletion of points, and through out-of-core rendering, the frame rate always stays above 20 frames per second on a fast workstation. To the best of our knowledge, this is the first interactive visualization of the complete data set of a large subterranean catacomb, and we show that direct point cloud visualization on the complete data set of a scan campaign is an important tool in archaeological practice.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121376743","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}

{"title":"Pushing time-of-flight scanners to the limit","authors":"M. Callieri, Paolo Cignoni, M. Dellepiane, Roberto Scopigno","doi":"10.2312/VAST/VAST09/085-092","DOIUrl":"https://doi.org/10.2312/VAST/VAST09/085-092","url":null,"abstract":"The paper describes a pipeline for 3D scanning acquisition and processing that allow to exploit the utmost precision and quality out of ToF scanners. The proposed approach capitalize on the knowledge of the distribution of the noise to apply sophisticated fairing techniques for cleaning up the data. Leveraging on the very dense sampling of this kind of scanners we show that is possible to attain high accuracy. We present a practical application of the proposed approach for the scanning of a large (5mt) statue with millimetric precision.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128879894","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}

{"title":"Artifacts removal for color projection on 3D models using flash light","authors":"M. Dellepiane, M. Callieri, M. Corsini, Paolo Cignoni, Roberto Scopigno","doi":"10.2312/VAST/VAST09/077-084","DOIUrl":"https://doi.org/10.2312/VAST/VAST09/077-084","url":null,"abstract":"Lighting artifacts are one of the main issues in digital photography: complex light setups are needed to attenuate or remove them. Flash light is a very easy way to illuminate an object or an environment, but it is rarely considered in most of the Computer Graphics and Computer Vision applications. This is due to the big amount of artifacts introduced by this lighting, and to the difficulty in modeling its behavior.\u0000 In this paper we present a simple method to use flash light in the context of color acquisition and mapping on 3D models. We propose a simple way to accurately estimate the flash position with respect to the camera, and we propose two automatic methods to detect and remove artifacts from a set of images which are registered to a 3D model. These methods are integrated in the context of a color mapping framework. The results show that it is possible to obtain high quality colored 3D models using flash light, which is the most simple illumination setup. This results are extremely important especially in the context of Cultural heritage, where the acquisition of color has often to be performed on site, without a specific lighting setup.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128999378","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}

{"title":"Publishing 3D content as PDF in cultural heritage","authors":"M. Strobl, René Berndt, V. Settgast, Sven Havemann, D. Fellner","doi":"10.2312/VAST/VAST09/117-124","DOIUrl":"https://doi.org/10.2312/VAST/VAST09/117-124","url":null,"abstract":"Sharing 3D models with embedded annotations and additional information in a generally accessible way still is a major challange. Using 3D technology must become much easier, in particular in areas such as Cultural Heritage, where archeologists, art historians, and museum curators rely on robust, easy to use solutions. Sustainable exchange standards are vital since unlike in industry, no sophisticated PLM or PDM solutions are common in CH. To solve this problem we have examined the PDF file format and developed concepts and software for the exchange of annotated 3D models in a way that is not just comfortable but also sustainable. We show typical use cases for authoring and using PDF documents containing annotated 3D geometry. The resulting workflow is efficient and suitable for experienced users as well as for users working only with standard word processing tools and e-mail clients (plus, currently, Acrobat Pro Extended).","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129297389","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}

{"title":"Managing full-text excavation data with semantic tools","authors":"F. Niccolucci, A. Felicetti, S. Hermon, K. Nys","doi":"10.2312/VAST/VAST09/125-132","DOIUrl":"https://doi.org/10.2312/VAST/VAST09/125-132","url":null,"abstract":"The paper deals with the management of archaeological data from excavations that cannot be easily processed using traditional forms and relational databases. It proposes a way of preserving the integrity of original information, including spatial relations. It demonstrates that also in this case CIDOC-CRM offers a valid schema that may be easily extended to incorporate geographic elements and relations. The system proposed is applied to a case-study concerning a Bronze Age 10 year-long excavation in Cyprus.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125578566","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}

{"title":"3D Modeling of Large and Complex Site Using Multi-sensor Integration and Multi-resolution Data","authors":"Gabriele Guidi, Fabio Remondino, M. Russo, F. Menna, A. Rizzi","doi":"10.2312/VAST/VAST08/085-092","DOIUrl":"https://doi.org/10.2312/VAST/VAST08/085-092","url":null,"abstract":"The article describes a multi-resolution approach developed for the 3D modeling of the entire Roman Forum in Pompeii, Italy. The archaeological area, approximately 150 x 80 m, contains more than 350 finds spread all over the Forum as well as larger mural structures of previous buildings and temples. The interdisciplinary 3D modeling work consists of a multi-scale image- and range-based digital documentation method developed to fulfil all the surveying and archaeological needs and exploit all the potentialities of the actual 3D modeling techniques. Data's resolution spans from few decimetres down to few millimetres, both in geometry and texture. The employed surveying methodologies have pros and cons which will be addressed and discussed. The first results of the integration of the different 3D data in a unique and seamless textured 3D model will be presented.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131469071","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}

{"title":"Multi-resolution Modeling of Complex and Detailed Cultural Heritage","authors":"Fabio Remondino, S. Girardi, L. Gonzo, A. Rizzi","doi":"10.2312/VAST/VAST08/001-008","DOIUrl":"https://doi.org/10.2312/VAST/VAST08/001-008","url":null,"abstract":"The article reports the interdisciplinary project of the virtualization of the Great Inscription of Gortyna (Crete) for 3D documentation, structural studies and physical replica purposes. The digitization of the longest epigraphic text of the Greek civilization (6 m long and 1.75 m high, with ca 2-3 mm depth engraved letters) and its surrounding heritage area (ca 30 x 30 m), required a long planning and the construction of a dedicated acquisition system to speed up the surveying time, limited to few hours per day. Primarily range sensors were employed in a multi-resolution way, digitizing detailed parts in highresolution and less smoothed areas with lower geometric resolution. Some selected areas were also modeled with our multi-photo geometrically constrained image matching approach to demonstrate that the same accuracy and details can be achieved using either scanners or photogrammetry. The derived 3D model of the heritage is now the basis for further archaeological studies on the incision techniques and a deeper structural analysis on the monument. The challenges of the work stay in the acquisition, processing and integration of the multi-resolution data as well as their visualization.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129381442","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}

{"title":"Back to 2nd AD A VR on-line experience with Virtual Rome Project","authors":"S. Pescarin, L. Calori, C. Camporesi, Marco Di Ioia, M. Forte, Fabrizio Galeazzi, S. Imboden, Alessia Moro, Augusto Palombini, V. Vassallo, L. Vico","doi":"10.2312/VAST/VAST08/109-116","DOIUrl":"https://doi.org/10.2312/VAST/VAST08/109-116","url":null,"abstract":"The Virtual Rome Project, commissioned by Seat Yellow Pages and the Italian Chamber of Commerce, has developed a VR webGIS application, with front-end and back-end on line solutions, for the interpretation, reconstruction and 3d exploration of archaeological and potential past landscapes of Rome. The purpose is the creation of a three-dimensional open source environment, embedded in a web-browser. The web application has two components: a front end that let the final user interactively explore the reconstructed space and a back end (still in development) that helps researchers to consistently build up the data structures needed to the complex activity of landscape reconstruction. At present the archaeological and ancient landscape of Rome has been reconstructed with variable resolution and accuracy (generally w 10-100 Mt, selected areas near via Flaminia, via Appia and Imperial Fora, with a resolution of 20 cm). \u0000 \u0000Sites, monuments and archaeological areas are connected with their context and are reconstructed in accordance with real and hypothetical topographies both for the present day and for the past. We will describe the process of contents and software development as well as the methodological approach to ancient landscape reconstruction. \u0000 \u0000The paper discusses also some problematic aspects that the \"Virtual Rome\" on line application had to face, both from archaeological and ICT points of view: reliability of reconstructed past landscape; the reconstruction as open and scientific process; large territory dataset on line management (32 GB of high resolution aerial images); different coordinate systems and data resolutions integration; 3d models complexity and dimension (texture and geometry) integration and efficient exploration; vegetation integration; continuous interaction for inter and intra-site browsing and plug-in integration in the browsers most commonly used. We present solutions to further develop the back-end VR webGIS builder, in order to allow a continuous modification of the landscape and the integration of different projects, to realize a 3d cooperative environment and a reference point for virtual communities.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128872421","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}

{"title":"Personalizing Virtual and Augmented Reality for Cultural Heritage Indoor and Outdoor Experiences","authors":"F. Liarokapis, Stella Sylaiou, D. Mountain","doi":"10.2312/VAST/VAST08/055-062","DOIUrl":"https://doi.org/10.2312/VAST/VAST08/055-062","url":null,"abstract":"Most cultural heritage exhibitions, both indoor and outdoor, could benefit from context-aware and personalized museum guides. Although, technological advancements in digitization, digital storage, visualisation and interaction have evolved rapidly, the current generation of museum exhibition and mobile guides offer systems with restricted capabilities and content, for example user selected audio guides and interactive touch screen kiosks. This paper presents solutions for both museum exhibitions and mobile guides moving towards a unifying framework based on open standards. This can offer more customisable experiences attracting and engaging a broader spectrum of users. Our solution takes into account the diverse needs of visitors to heritage and mobile guide exhibitions allowing for multimedia representations of the same content but using diverse interfaces including a web, a map, a virtual reality and an augmented reality domain. Different case studies illustrate the majority of the capabilities of the multimodal interfaces used and also how personalisation and customisation can be performed in both kiosk and mobile guide exhibitions to meet user needs.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125764695","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}

{"title":"A Technology Cocktail for a 3D Photo-Realistic Model of a I Century Roman Fountain: Range Scanning, RTI and Physically Based Rendering","authors":"João Barbosa, P. Bernardes, Matheus Almeida, P. Gomes, Ricardo Gonçalves, A. Proença","doi":"10.2312/VAST/VAST08/025-032","DOIUrl":"https://doi.org/10.2312/VAST/VAST08/025-032","url":null,"abstract":"Archaeology is a science that uses multiple disciplines to ensure the validity of archaeological data and to accurately support theoretical foundations. Archaeology uses computer graphics to create credible virtual representations of archaeological sites and artifacts, which are used for interpretation, research purposes and archiving. Accurate virtual representations of an archaeological site rely on a balanced mixture of techniques, and some are discussed in this communication aplied to a I century roman fountain. Different imaging techniques were integrated - point cloud from a total station, 3D mid-range laser scanning and reflectance transformation imaging (RTI) - where their best features are extracted and combined to get the most accurate data in different scales. A point cloud enables a fair representation of the entire site (macro-scale), including the surrounding environment features. A 3D mid-range scanning captures the surface detail (medium-scale), but it may not be reliable to capture microstructure elements. An RTI technique (such as polynomial texture mapping, PTM) may overcome this limitation, since it can capture the microstructure elements through the surface reflectance properties. A physically based rendering technique (such as the one used by PBRT) can contribute to produce an improved view of an archaeological site, from a virtual 3D model. \u0000 \u0000A collection of open-source software tools is under development to efficiently merge these techniques. This integrated set aims to provide a smooth integration of data gathered on the field, while adequately documenting all processing steps for archival purposes. Obtained results so far are promising and suggest some paths for improvements.","PeriodicalId":168094,"journal":{"name":"IEEE Conference on Visual Analytics Science and Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126943091","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}