A5077297626- Computer Graphics and Visualization Techniques
- 3D Surveying and Cultural Heritage
- 3D Shape Modeling and Analysis
- Advanced Vision and Imaging
- Computational Geometry and Mesh Generation
- Image Processing and 3D Reconstruction
- 3D Modeling in Geospatial Applications
- Conservation Techniques and Studies
- Remote Sensing and LiDAR Applications
- Geological Modeling and Analysis
- Archaeological Research and Protection
- Image Enhancement Techniques
- Coral and Marine Ecosystems Studies
- Data Visualization and Analytics
- Advanced Image and Video Retrieval Techniques
- Video Analysis and Summarization
- Robotics and Sensor-Based Localization
- Architecture and Computational Design
- Advanced Image Processing Techniques
- Infrastructure Maintenance and Monitoring
- Structural Analysis and Optimization
- Semantic Web and Ontologies
- Digital Humanities and Scholarship
- Innovations in Concrete and Construction Materials
- Efficiency Analysis Using DEA
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo"
2015-2024
Institute of Scientific and Technical Information of China
2003-2023
National Research Council
2019
United States Nuclear Regulatory Commission
2015
Clausthal University of Technology
2008
National Academies of Sciences, Engineering, and Medicine
2004
Abstract This paper describes an efficient technique for out‐of‐core rendering and management of large textured terrainsurfaces. The technique, called Batched Dynamic Adaptive Meshes (BDAM), is based on a paired tree structure:a tiled quadtree texture data pair bintrees small triangular patches the geometry. These smallpatches are TINs constructed optimized off‐line with high quality simplification tristrippingalgorithms. Hierarchical view frustum culling view‐dependent geometry refinement...
Digital technologies are transforming the way cultural heritage researchers, archaeologists, and curators work by providing new ways to collaborate, record excavations, restore artifacts.
We describe an efficient technique for out-of-core construction and accurate view-dependent visualization of very large surface models. The method uses a regular conformal hierarchy tetrahedra to spatially partition the model. Each tetrahedral cell contains precomputed simplified version original model, represented using cache coherent indexed strips fast rendering. representation is constructed during fine-to-coarse simplification contained in diamonds (sets cells sharing their longest...
We describe an efficient technique for out-of-core management and interactive rendering of planet sized textured terrain surfaces. The technique, called planet-sized batched dynamic adaptive meshes (P-BDAM), extends the BDAM approach by using as basic primitive a general triangulation points on displaced triangle. proposed framework introduces several advances with respect to state art: thanks host-to-graphics communication model, we outperform current tessellation solutions in terms speed;...
Abstract This work concerns a novel study in the field of image‐to‐geometry registration. Our approach takes inspiration from medical imaging, particular multi‐modal image Most algorithms developed this domain, where images to register come different sensors (CT, X‐ray, PET), are based on Mutual Information , statistical measure non‐linear correlation between two data sources. The main idea is use mutual information as similarity be registered and renderings model geometry, order drive...
<p class="VARKeywords">Digital technologies are now mature for producing high quality digital replicas of Cultural Heritage (CH) assets. The research results produced in the last decade ignited an impressive evolution and consolidation acquiring high-quality three-dimensional (3D) models, encompassing both geometry color. What remains still open problem is how to deliver those data related knowledge our society. web nowadays main channel dissemination knowledge. Emerging commercial...
Abstract Semantic segmentation is a widespread image analysis task; in some applications, it requires such high accuracy that still has to be done manually, taking long time. Deep learning‐based approaches can significantly reduce times, but current automated solutions may produce results below expert standards. We propose agLab, an interactive tool for the rapid labelling and of orthoimages speeds up semantic segmentation. TagLab follows human‐centered artificial intelligence approach that,...
The multi triangulation framework (MT) is a very general approach for managing adaptive resolution in triangle meshes. key idea arranging mesh fragments at different directed acyclic graph (DAG) which encodes the dependencies between fragments, thereby encompassing wide class of multiresolution approaches that use hierarchies or DAGs with predefined topology. On current architectures, classic MT however unfit real-time rendering, since DAG traversal costs vastly dominate raw rendering costs....
Thanks to the WebGL graphics API specification for JavaScript programming language, possibility of using GPU capabilities in a web browser without need an ad-hoc plug-in is now coming true. This paper introduces SpiderGL, library developing 3D applications. SpiderGL provides data structures and algorithms ease use WebGL, define manipulate shapes, import models various formats, handle asynchronous loading. We show potential this novel with number demo Furthermore, we introduce MeShade,...
This paper presents our digital publishing process and its editing system developed for a specific use case - the scholarly edition of set Roman inscribed lead tags but suited analyzing broad variety text-bearing objects. pipeline covers spectrum activities from data acquisition visual aspects to complex analysis writings text incised inscriptions. It employs two-dimensional medium, Reflection Transformation Images (RTI), support analysis. The textual it generates are open access, ready be...
Abstract Annotation support in interactive systems is often considered a simple task by the CG community, since it entails apparently easy selection of region and its connection with some information. The reality appears more complex. scope this paper two‐fold: first, to review status domain, discussing characterizing several approaches proposed literature manage annotations over geometric models; second, present detail an innovative solution assessed framework Cultural Heritage (CH)...
Detecting the impacts of natural and anthropogenic disturbances that cause declines in organisms or changes community composition has long been a focus ecology. However, tradeoff often exists between spatial extent over which relevant data can be collected, resolution those data. Recent advances underwater photogrammetry, as well computer vision machine learning tools employ artificial intelligence (AI), offer potential solutions with to resolve this tradeoff. Here, we coupled rigorous...
Efficient transmission of 3D data to Web clients and mobile applications remains a challenge due limited bandwidth. Most the research focus in context mesh compression has been on improving ratio. However, this use Javascript low power CPUS led critical computational costs. Progressive decoding improves user experience by providing simplified version model that refines with time, it's able mask latency. Current approaches do so at very poor rates or additional cost. The need for better...
The program of scientific investigations planned in the framework restoration Michelangelo's David produced several useful guidelines for defining and developing innovative ways to process visualize 3D data cultural heritage applications. Our ultimate goal was include graphics among tools which can help restorers select proper procedures task at hand objectively assess results. For this, an ideal test bed demonstrate usefulness digital models visualization a project. Because complex set...
Relightable images have demonstrated to be a valuable tool for the study and analysis of coins, bas-relief, paintings, epigraphy in Cultural Heritage (CH) field. Reflection Transformation Imaging (RTI) are most diffuse type relightable images. An RTI image consists per-pixel function which encodes reflection behavior, estimated from set digital photographs acquired fixed view. Even if web visualization tools available, high fidelity relighted still requires amount data transmitted. To...
Virtual inspector lets novice users inspect dense 3D models at interactive frame rates on commodity PCs. The system obtains visualization efficiency without sacrificing quality by adopting a continuous level-of-detail representation. Visual inspector's use of XML to encode the GUI's structure and behavior makes it flexible configurable. We can improve virtual adding new functionality increasing its efficiency. Few restorers would consider simple digital replica as ultimate goal for scanning...
The digitally documented world heritage is archived in databases or repositories, where collections of metadata, images, multimedia objects nowadays even digital 3D artifacts can be stored and queried. Modeling linking all this information complex involves refined categorizations relations, which are usually accessed by either simplistic overwhelmingly interfaces. Hence, finding the right level abstraction for a general interface very challenging. This becomes more demanding, if addition to...
PhotoCloud is a real-time client-server system for interactive visualization and exploration of large datasets comprising thousands calibrated 2D photographs scene complex 3D description the scene. The isn't tailored to any specific data acquisition process; it aims at generality flexibility. achieves scalability through multiresolution dynamic hierarchical representation data, which remotely stored accessed by client an efficient cache system. includes compact image browser model renderer....
Abstract. Close-Range Photogrammetry (CRP) and Reflectance Transformation Imaging (RTI) are two of the most used image-based techniques when documenting analyzing Cultural Heritage (CH) objects. Nevertheless, their potential impact in supporting study analysis conservation status CH assets is reduced as they remain mostly applied analyzed separately. This because we miss easy-to-use tools for a spatial registration multimodal data features joint visualisation gaps. The aim this paper to...
We propose a technique to decompose 3D digital shape into set of interlocking pieces that are easy be manufactured and assembled. The designed so they can represented as simple height field and, therefore, by common printers without the usage supporting material. removal material is often burdensome task may eventually damage surface printed object. Our approach makes final reproduction cheaper, accurate suitable for tangible cultural heritages. Moreover, since proposed decomposes artwork in...