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A Social Platform to Support Citizens Reuse of Open 3D Visualisations: a Citizen Science Approach 支持公民重用开放3D可视化的社会平台:公民科学方法
Pub Date : 1900-01-01 DOI: 10.2312/gch.20181350
R. D. Donato, M. D. Santo, A. Negro, Donato Pirozzi, Diletta Rizzolo, Gianluca Santangelo, V. Scarano
There is a growing interest in the world of Open Data, with many initiatives in the Cultural Heritage field. Platforms like Europeana, archive.org, Open Heritage by Google are only few examples of on-line catalogues full of open artefacts published with various formats. It is a new and promising way to engage public, such as, students, citizens, non-profit organisations. This paper faces the question of how to help audience in reusing Open 3D models and other artefacts available on Open Cultural Heritage repositories. The idea is to provide a Social Platform named SPOD where citizens can visualise artefacts, share and comment with others in a social way to increase understanding, awareness and engagement in cultural heritage. The foundation is the Datalet-Ecosystem Provider (DEEP), an open source, extensible, scalable, and Edge-centric visualisation architecture to support reuse of visualisations of Open Data in Cultural Heritage. It consists of reusable, dynamic and interactive visualizations named datalets. It includes a variety of visualisations, charts, geographical maps and 3D visualisations. Datalets can be generated and embedded in any web-page as well. SPOD exploits the DEEP architecture to support users within the platform in generating visualisations of Open artefacts, reuse and share them within discussions. CCS Concepts •Human-centered computing → Visualization systems and tools; •Information systems → Collaborative and social computing systems and tools;
人们对开放数据的兴趣越来越大,在文化遗产领域有许多倡议。像Europeana、archive.org、谷歌的开放遗产等平台,只是以各种格式发布的开放文物在线目录的几个例子。这是一种新的、有前途的方式来吸引公众,如学生、公民、非营利组织。本文面临的问题是如何帮助观众重用开放3D模型和开放文化遗产存储库中的其他文物。这个想法是提供一个名为SPOD的社交平台,市民可以通过社交方式将文物可视化,与他人分享和评论,以增加对文化遗产的理解、认识和参与。其基础是数据生态系统提供商(DEEP),这是一个开源的、可扩展的、可扩展的、以边缘为中心的可视化架构,用于支持文化遗产中开放数据可视化的重用。它由可重用的、动态的、交互式的可视化数据集组成。它包括各种可视化,图表,地理地图和3D可视化。数据表也可以生成并嵌入到任何网页中。SPOD利用DEEP架构来支持平台内的用户生成开放工件的可视化,并在讨论中重用和分享它们。•以人为中心的计算→可视化系统和工具;•信息系统→协作和社会计算系统和工具;
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引用次数: 0
Project "Wall facing Automatic Image Identification Laboratory" - W.A.L.(L) 项目“面向墙壁的自动图像识别实验室”- W.A.L.(L)
Pub Date : 1900-01-01 DOI: 10.2312/gch.20231181
F. Buscemi, Giovanni Gallo, Marianna Figuera, Yaser Gholizade Atani, A. L. Duca
The advantages of digitalization of cultural heritage artifacts go beyond the basic documentation of the archeological findings contexts and offer a tool to gain new scientific insights. W.A.L.(L) is an on-going project whose results show that the interdisciplinary collaboration between archeologists, data and computer scientists, carried on with rigorous methods of data collection, processing, organization and analysis may offer great opportunities for archeological data sharing and understanding
文化遗产数字化的优势超越了考古发现背景的基本记录,并提供了获得新的科学见解的工具。W.A.L.(L)是一个正在进行的项目,其结果表明,考古学家、数据和计算机科学家之间的跨学科合作,以严格的数据收集、处理、组织和分析方法进行,可能为考古数据的共享和理解提供巨大的机会
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引用次数: 0
Mobile Laser Scanning of Challenging Urban Sites: a Case Study in Matera 具有挑战性的城市站点的移动激光扫描:以马泰拉为例
Pub Date : 1900-01-01 DOI: 10.2312/gch.20221218
A. Scalas, D. Cabiddu, M. Mortara, S. Pittaluga, M. Spagnuolo
The creation of 3D models of heritage and architectural sites requires proper technologies able to capture a wide area at fine geometric and appearance detail. In this paper we address the acquisition and digitization of three challenging Points of Interest in Matera, Italy. The sites, both outdoor and indoor, are characterised by limited accessibility, complex morphology and poor lighting conditions. We describe our experience with a portable, lightweight laser scanner, describing the planning, acquisition and post-processing phases, and providing some lessons learnt in order to achieve good results in terms of quality and resolution.
创建遗产和建筑遗址的3D模型需要适当的技术,能够在精细的几何和外观细节上捕获广泛的区域。在本文中,我们讨论了意大利马泰拉三个具有挑战性的兴趣点的收购和数字化。这些场地,无论是室外还是室内,都具有有限的可达性、复杂的形态和较差的照明条件。我们描述了我们使用便携式轻型激光扫描仪的经验,描述了计划、获取和后处理阶段,并提供了一些经验教训,以便在质量和分辨率方面取得良好的结果。
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引用次数: 0
Seismic Simulation on Virtual Reality 基于虚拟现实的地震模拟
Pub Date : 1900-01-01 DOI: 10.2312/GCH.20191345
Josep Lluis Fita, G. Besuievsky, G. Patow
Virtual Reality has been used in Cultural Heritage for providing immersive experiences of recreated and static environments to the final user. However, there is a lack of virtual reality applications for recreating natural phenomena like earthquakes in combination with structural simulations over ancient masonry buildings. In this paper, we describe a solution affordable for all kind of users and designed for running on low-cost devices, where users can have an immersive experience in a virtual environment, where the structural and seismic simulation affects a historical building. CCS Concepts • Computing methodologies → Physical simulation; • Applied computing → Virtual Reality;
虚拟现实在《文化遗产》中被用于为最终用户提供再现和静态环境的沉浸式体验。然而,目前还缺乏将地震等自然现象与古代砖石建筑的结构模拟相结合的虚拟现实应用。在本文中,我们描述了一种所有用户都能负担得起的解决方案,设计用于在低成本设备上运行,用户可以在虚拟环境中获得沉浸式体验,其中结构和地震模拟会影响历史建筑。•计算方法→物理模拟;•应用计算→虚拟现实;
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引用次数: 0
Scan2FEM: From Point Clouds to Structured 3D Models Suitable for Simulation Scan2FEM:从点云到适合模拟的结构化3D模型
Pub Date : 1900-01-01 DOI: 10.2312/gch.20221215
Z. Selman, J. Musto, L. Kobbelt
Preservation of cultural heritage is important to prevent singular objects or sites of cultural importance to decay. One aspect of preservation is the creation of a digital twin. In case of a catastrophic event, this twin can be used to support repairs or reconstruction, in order to stay faithful to the original object or site. Certain activities in prolongation of such an objects lifetime may involve adding or replacing structural support elements to prevent a collapse. We propose an automatic method that is capable of transforming a point cloud into a geometric representation that is suitable for structural analysis. We robustly find cuboids and their connections in a point cloud to approximate the wooden beam structure contained inside. We export the necessary information to perform structural analysis, on the example of the timber attic of the UNESCO World Heritage Aachen Cathedral. We provide evaluation of the resulting cuboids’ quality and show how a user can interactively refine the cuboids in order to improve the approximated model, and consequently the simulation results.
保护文化遗产对于防止具有重要文化意义的单一物体或遗址腐烂是很重要的。保存的一个方面是创造一个数字双胞胎。在发生灾难性事件的情况下,这个孪生体可以用来支持维修或重建,以保持对原始物体或地点的忠实。延长此类物体寿命的某些活动可能涉及添加或更换结构支撑元件以防止坍塌。我们提出了一种能够将点云转换为适合于结构分析的几何表示的自动方法。我们在点云中找到长方体和它们的连接,以近似内部包含的木梁结构。我们导出必要的信息来进行结构分析,以联合国教科文组织世界遗产亚琛大教堂的木材阁楼为例。我们提供了对所得长方体质量的评估,并展示了用户如何交互式地改进长方体,以改进近似模型,从而改进仿真结果。
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引用次数: 0
Interaction with 3D Models on Virtual Archaeological Sites 与虚拟考古遗址上的3D模型交互
Pub Date : 1900-01-01 DOI: 10.2312/gch.20201286
L. Ortega, Ángel Luis García Fernández, J. L. Ruiz, A. Calzado-Martínez
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引用次数: 1
A New Baseline for Feature Description on Multimodal Imaging of Paintings 绘画多模态成像特征描述的新基线
Pub Date : 1900-01-01 DOI: 10.2312/gch.20221223
Jules van der Toorn, R. Wiersma, A. Vandivere, R. Marroquim, E. Eisemann
Multimodal imaging is used by conservators and scientists to study the composition of paintings. To aid the combined analysis of these digitisations, such images must first be aligned. Rather than proposing a new domain-specific descriptor, we explore and evaluate how existing feature descriptors from related fields can improve the performance of feature-based painting digitisation registration. We benchmark these descriptors on pixel-precise, manually aligned digitisations of “Girl with a Pearl Earring” by Johannes Vermeer (c. 1665, Mauritshuis) and of “18th-Century Portrait of a Woman”. As a baseline we compare against the well-established classical SIFT descriptor. We consider two recent descriptors: the handcrafted multimodal MFD descriptor, and the learned unimodal SuperPoint descriptor. Experiments show that SuperPoint starkly increases description matching accuracy by 40% for modalities with little modality-specific artefacts. Further, performing craquelure segmentation and using the MFD descriptor results in significant description matching accuracy improvements for modalities with many modality-specific artefacts.
多模态成像被保护人员和科学家用来研究绘画的构成。为了帮助对这些数字化的综合分析,这些图像必须首先对齐。我们不是提出一个新的特定于领域的描述符,而是探索和评估来自相关领域的现有特征描述符如何提高基于特征的绘画数字化配准的性能。我们以约翰内斯·维米尔(Johannes Vermeer,约1665年,Mauritshuis)的《戴珍珠耳环的女孩》(Girl with a Pearl耳环)和《18世纪女性肖像》(18 century Portrait of a Woman)的像素精确、手动对齐的数字化为基准,对这些描述符进行了基准测试。作为基线,我们与公认的经典SIFT描述符进行比较。我们考虑两个最近的描述符:手工制作的多模态MFD描述符和学习的单模态SuperPoint描述符。实验表明,SuperPoint可以显著提高具有少量模态特定伪像的模态的描述匹配精度40%。此外,执行裂纹分割和使用MFD描述符可以显著提高具有许多模态特定工件的模态的描述匹配精度。
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引用次数: 0
Interaction Styles in a Multi-Modal Virtual Museum 多模态虚拟博物馆中的交互样式
Pub Date : 1900-01-01 DOI: 10.2312/gch.20231183
Ethan Southall, Vedad Hulusic, Charlie Hargood
Virtual Reality is used for creating immersive experiences with rich interactions in many application domains, from video games, simulations, and training, to cultural heritage and educational applications. Taking advantage of this technology, the experience in traditional museums can be enhanced with digital content, the museum or their collections can be replicated for remote visitors, or entirely new virtual museums can be created. In this paper, a demo of a multi-modal virtual museum is presented and interaction discussed from the point of view of a consumer and a virtual museum creator.
虚拟现实用于在许多应用领域中创建具有丰富交互的沉浸式体验,从视频游戏,模拟和培训到文化遗产和教育应用。利用这项技术,传统博物馆的体验可以通过数字内容得到增强,博物馆或其藏品可以为远程游客复制,或者可以创建全新的虚拟博物馆。本文给出了一个多模态虚拟博物馆的演示,并从消费者和虚拟博物馆创建者的角度讨论了交互问题。
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引用次数: 0
From Paper to Web: Automatic Generation of a Web-Accessible 3D Repository of Pottery Types 从纸到网络:自动生成一个网络可访问的陶器类型3D存储库
Pub Date : 1900-01-01 DOI: 10.2312/gch.20171293
M. Dellepiane, M. Callieri, F. Banterle, Domenico Arenga, M. Zallocco, Roberto Scopigno
3D web repositories are a hot topic for the research community in general. In the Cultural Heritage (CH) context, 3D repositories pose a difficult challenge due to the complexity and variability of models and to the need of structured and coherent metadata for browsing and searching. This paper presents one of the efforts of the ArchAIDE project: to create a structured and semantically-rich 3D database of pottery types, usable by archaeologists and other communities. For example, researchers working on shape-based analysis and automatic classification. The automated workflow described here starts from pages of a printed catalog, extracts the textual and graphical description of a pottery type, and processes those data to produce structured metadata information and a 3D representation. These information are then ingested in the database, where they become accessible by the community using dynamically-created web presentation pages, showing in a common context: 3D, 2D and metadata information. CCS Concepts •Computer Graphics → Shape modelling; •Data management systems → Database design and models; •Document management and text processing → Document capture;
一般来说,3D网络存储库是研究社区的热门话题。在文化遗产(CH)的背景下,由于模型的复杂性和可变性,以及浏览和搜索需要结构化和连贯的元数据,3D存储库构成了一个困难的挑战。本文介绍了ArchAIDE项目的一项工作:创建一个结构化和语义丰富的陶器类型3D数据库,供考古学家和其他社区使用。例如,研究基于形状的分析和自动分类的研究人员。这里描述的自动化工作流程从印刷目录的页面开始,提取陶器类型的文本和图形描述,并处理这些数据以生成结构化元数据信息和3D表示。然后将这些信息输入数据库,社区可以使用动态创建的web演示页面访问这些信息,这些页面显示在一个共同的上下文中:3D、2D和元数据信息。CCS概念•计算机图形学→形状建模;•数据管理系统→数据库设计和模型;•文档管理和文本处理→文档捕获;
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引用次数: 4
Effective Interactive Visualization of Neural Relightable Images in a Web-based Multi-layered Framework 基于web的多层框架中神经可轻化图像的有效交互可视化
Pub Date : 1900-01-01 DOI: 10.2312/gch.20231158
Leonardo Righetto, F. Bettio, F. Ponchio, Andrea Giachetti, E. Gobbetti
Relightable images created from Multi-Light Image Collections (MLICs) are one of the most commonly employed models for interactive object exploration in cultural heritage. In recent years, neural representations have been shown to produce higher-quality images, at similar storage costs, with respect to the more classic analytical models such as Polynomial Texture Maps (PTM) or Hemispherical Harmonics (HSH). However, their integration in practical interactive tools has so far been limited due to the higher evaluation cost, making it difficult to employ them for interactive inspection of large images, and to the difficulty in integration cost, due to the need to incorporate deep-learning libraries in relightable renderers. In this paper, we illustrate how a state-of-the-art neural reflectance model can be directly evaluated, using common WebGL shader features, inside a multi-platform renderer. We then show how this solution can be embedded in a scalable framework capable to handle multi-layered relightable models in web settings. We finally show the performance and capabilities of the method on cultural heritage objects.
从多光图像集合(mlic)中创建的可照明图像是文化遗产中最常用的交互式对象探索模型之一。近年来,相对于更经典的分析模型,如多项式纹理映射(PTM)或半球谐波(HSH),神经表征已被证明在相似的存储成本下产生更高质量的图像。然而,到目前为止,它们在实际交互工具中的集成受到限制,因为评估成本较高,使得难以将它们用于大型图像的交互式检查,并且由于需要将深度学习库合并到可照明的渲染器中,因此集成成本困难。在本文中,我们演示了如何在多平台渲染器中使用常见的WebGL着色器功能直接评估最先进的神经反射模型。然后,我们展示了如何将该解决方案嵌入到一个可扩展的框架中,该框架能够在web设置中处理多层可调光模型。最后,我们展示了该方法在文物上的性能和能力。
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引用次数: 0
期刊
Eurographics Workshop on Graphics and Cultural Heritage
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