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12th IFIP WG 5.1 international conference on Product Lifecycle Management in the Era of Internet of Things (PLM)

作者： Ran Luming Singh, Vishal Aalto Univ Dept Ind Engn & Management Espoo Finland Aalto Univ Dept Civil & Struct Engn Espoo Finland

ISBN: (纸本)9783319331119;9783319331102

Building Information Modelling (BIM), as an object-oriented tool, has been the buzzword in Architecture Engineering and Construction (AEC) sector in recent years. The buzz has created a lot of promise of an imminent paradigm shift and productivity and lifecycle improvements in the AEC sector, and plenty of benefits are cited in the literature. Consequently, the word has reached the shipbuilding industry as well, which faces many similar productivity and lifecycle challenges as the AEC industry, and which is seeking similar advancements in digital tools that can bring around the change. As a result, the Finnish shipbuilding industry expressed interest in exploring what are the BIM-enabled best practices in the AEC sector, and which of these can potentially be transferred to the shipbuilding industry. This research explored these issues. Findings suggest that due to lack of mutual communication, the professionals across each industry believe the other to be doing better.

关键词： BIM PLM 3d CAd AEC Shipbuilding

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advances in virtual archaeology: Research, preservation, and dissemination

Advances in virtual archaeology: Research, preservation, and...

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IMEKO international conference on Metrology for Archeology and Cultural Heritage, MetroArcheo 2016

作者： Profico, Antonio di Vincenzo, Fabio Bellucci, Luca Strani, Flavia Tafuri, Mary Anne Manzi, Giorgio Dipartimento di Biologia Ambientale Sapienza Università di Roma Piazzale Aldo Moro 5 Roma00185 Italy Polo Museale Sapienza Università di Roma Piazzale Aldo Moro 5 Roma00185 Italy Dipartimento di Scienze della Terra Piazzale Aldo Moro 5 Roma00185 Italy PaleoFactory Dipartimento di Scienze della Terra Piazzale Aldo Moro 5 Roma00185 Italy

ISBN: (纸本)9781510849754

The archaeological and palaeontological record (including human skeletal remains) often bears crack, damage and deformations. The recent rapid development of the diagnostic potentials of "virtual archaeology" has provided innovative tools to manage, study and preserve cultural and natural heritage. These tools include, among others, CT-scans, Laser-scanning, photogrammetry, 3d imaging and rapid prototyping. This approach can contribute to any archaeological context from its discovery to research, preservation, and dissemination. 3d imaging techniques, for instance, substitute physical intervention with a virtual protocol aimed at restoring the original shape of an archaeological item or a fossil specimen. In a similar way, the recovery of digital morphological information can be gathered using data preserved even on a deficient finding through the use of 3d comparative samples. Here we present an extended and updated review about the most innovative protocols applied in virtual archaeology and palaeontology. © 2016 IMEKO-international Measurement Federation Secretariat. All rights reserved.

关键词： Computerized tomography

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A Research on 3d Model Construction from 2d dICOM

A Research on 3D Model Construction from 2D DICOM

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international conference on Advanced Computing and Applications (ACOMP)

作者： Van Sinh Nguyen Manh Ha Tran Hoang Minh Quang Vu Int Univ HCMC Sch Comp Sci & Engn Quarter 6 Thu Duc Hcm Vietnam

ISBN: (纸本)9781509061440

In recent years, the development of high techniques in the field of computer graphics, computer vision and images processing has been widely studied and applied in geometric modeling. Especially, in the field of 3d modeling and reconstruction of a 3d object from 2d images. One of these researches is the field of medical image processing. It has been invested and developed by researchers, both in computer science and medicine. This paper presents a survey research on construction and reconstruction of a 3d object from a set of 2d medical images. We first review the existing methods for building a 3d object from 2d medical image slices in dICOM (digital imaging and Communications in Medicine) format. They come from measurement devices in medicine like X-ray Computerized Tomography (X-ray CT), Magnetic Resonance imaging (MRI), etc. Thereafter, we construct an application based on the VTK library for building, visualizing and handling a 3d object from these CT scanned slices. This application can support medical staffs and doctors in diagnostic and treatment of patients.

关键词： 3d model Marching cube Ray casting Texture-based rendering Medical images processing dICOM

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Biological Systems Through the Informational Lens

Biological Systems Through the Informational Lens

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16th Annual international conference on Computational Science (ICCS)

作者： Lawrence, Albert Katchalski, Tsvi Perez, Alex Lev-Ram, Varda Boassa, daniela deerinck, Thomas Phan, Sebastien Peltier, Steven Ellisman, Mark UCSD Ctr Res Biol Struct Natl Ctr Microscopy & Imaging Res La Jolla CA 92093 USA

Computation is often seen as information processing. Many biological systems may be investigated in terms of information storage, signaling, and data processing networks. Much of this data processing activity is embodied in structural transformations in spatial scales ranging from the molecular to cellular networks. The biomedical sciences make use of an increasingly powerful arsenal of tools and technologies for obtaining structural data as well as details of mass transport and the chemical and electrical signals that underlie these fundamental biological processes. For example, new staining techniques combined with computer-based electron microscope tomography, permit the clear imaging of chromatin filaments in the cell nucleus and filament networks in the cytoplasmic and extracellular space via the electron microscope. The application of tomographic reconstruction software developed at the National Center for Microscopy and imaging Research (NCMIR) enables detailed 3d reconstructions of the relevant biological structures and processes. In order to deal with fundamental issues related to information processing in biological systems, new data processing methods as well as advances in chemically sensitive probes and imaging technology must be applied across a wide range of spatial and temporal scales. One class of increasingly useful tools for modeling biological systems, evaluating imaging technologies and characterizing the fidelity of digital processing has its roots in theoretical investigations in statistical mechanics, which arise from the concepts of information and entropy. We review how concepts of information and entropy may give new perspectives on the flow of information within biological systems, as well as our instrumentation and computer processing.

关键词： chromatin perineuronal net tomography information theory Renyi entropy radon transform

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Prostate cancer: Improved tissue characterization by temporal modeling of radio-frequency ultrasound echo data 1st

Prostate cancer: Improved tissue characterization by tempora...

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1st international Workshop on Simulation and Synthesis in Medical imaging, SASHIMI 2016 held in conjunction with 19th international conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2016

作者： Nahlawi, Layan Imani, Farhad Gaed, Mena Gomez, Jose A. Moussa, Madeleine Gibson, Eli Fenster, Aaron Ward, Aaron d. Abolmaesumi, Purang Shatkay, Hagit Mousavi, Parvin School of Computing Queen’s University Kingston Canada Department of Electrical and Computer Engineering University of British Columbia Vancouver Canada Centre for Medical Image Computing University College London London United Kingdom Department of Medical Biophysics Pathology and Robarts Institute Western University London Canada Department of Computer and Information Sciences University of Delaware Newark United States

ISBN: (纸本)9783319467191

despite recent advances in clinical oncology,prostate cancer remains a major health concern in men,where current detection techniques still lead to both over- and under-diagnosis. More accurate prediction and detection of prostate cancer can improve disease management and treatment outcome. Temporal ultrasound is a promising imaging approach that can help identify tissue-specific patterns in time-series of ultrasound data and,in turn,differentiate between benign and malignant tissues. We propose a probabilistic-temporal framework,based on hidden Markov models,for modeling ultrasound time-series data obtained from prostate cancer patients. Our results show improved prediction of malignancy compared to previously reported results,where we identify cancerous regions with over 88% accuracy. As our models directly represent temporal aspects of the data,we expect our method to be applicable to other types of cancer in which temporal-ultrasound can be captured. © Springer international Publishing AG 2016.

关键词： diagnosis

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Evaluating the Creation and Preservation Challenges of Photogrammetry-based 3d Models

Evaluating the Creation and Preservation Challenges of Photo...

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IS&T Archiving conference 2015 (ARCHIVING 2015)

作者： Bennett, Michael J. Univ Connecticut Lib Storrs CT 06269 USA

ISBN: (纸本)9780892083145

Though the roots of photogrammetry can be traced back to photography's earliest days, only recent advances in both digital technology and software applications have put the possibilities of 3d modeling from 2d source images in the hands of the greater cultural heritage community. The possibilities of such 3d digital rendering are many. With these possibilities come unique digital preservation challenges. This study explores basic close-range photogrammetry as applied to sample archival objects. Additionally, the latest Baglt and ZIP-based bundling formats along with repository-based solutions are also surveyed as potential 3d data management and archiving aggregators for resulting 3d models.

关键词： Photogrammetry

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modeling specular reflectance and polarization in dART model for simulating remote sensing images of natural and urban landscapes

Modeling specular reflectance and polarization in DART model...

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international conference on Advanced Technologies for Signal and Image Processing (ATSIP)

作者： J. P. Gastellu-Etchegorry N. Lauret T. Yin J. Aval A. Kallel L. Landier A. Al Bitar J. Guilleux C. Jan E. Chavanon Universite Federale Toulouse Midi-Pyrenees Toulouse Occitanie FR CRNS-ATMS Ons City Sfax Tunisia 3021

ISBN: (纸本)9781467385275

The need of better accuracy to analyze remote sensing (RS) data and radiative budget (RB) of Earth surfaces explains the demand of physical models of RS and RB data. dART (discrete Anisotropic Radiative Transfer) model is probably the most comprehensive three-dimensional (3d) physical model. Indeed, with original ray tracking and Monte Carlo methods for tracking radiation in the Earth and atmosphere from visible to thermal infrared wavelengths, it simulates the 3d RB and acquisitions of terrain / RS imaging radiometers and laser scanners, for any urban / natural landscape and any experimental / instrumental configuration. Paul Sabatier delivers free licenses for research and teaching activities. After introducing dART theory, we present recent advances: simulation of LidAR and airborne sensors, and modeling of specular interaction and polarization.

关键词： Atmospheric modeling Terrestrial atmosphere Sensors Three-dimensional displays Laser radar Earth Vegetation

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digitizing, modelling and 3d printing of skeletal digital models of Palaeoloxodon tiliensis (Tilos, dodecanese, Greece)

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QUATERNARY international 2015年 379卷 4-13页

作者： Mitsopoulou, Vassiliki Michailidis, dimitrios Theodorou, Evangelos Isidorou, Stylianos Roussiakis, Socrates Vasilopoulos, Theodoros Polydoras, Stamatios Kaisarlis, Georgios Spitas, Vasileios Stathopoulou, Elizabeth Provatidis, Christophoros Theodorou, George Univ Athens Fac Geol & Geoenvironm Dept Hist Geol & Palaeontol Athens 15784 Greece Natl Tech Univ Athens Sch Mech Engn Mech Design & Control Syst Div Athens 15780 Greece

Charkadio Cave, on Tilos Island, is one of the richest Mediterranean fossiliferous sites, preserving remains of the dwarf elephant Palaeoloxodon tiliensis. This species is considered to be the last European elephant. recent advances in the fields of engineering and imaging technology and their applications in palaeontology have allowed the digitization, modelling and 3d printing of skeletal remains of P. tiliensis for the first time. Taphonomical data were combined with appropriate mathematical methods and allometric analyses in order to determine missing bone measurements and estimate correct relative proportions of skeletal elements. Computed Tomography and non-contact digitization via Laser Scanning were used in order to capture the specimens' surface morphology and create 3d models that are adjusted to the correct dimensions derived from the mathematical analyses. The 3d models were then 3d printed with the use of Rapid Prototyping technologies. A research potential of fossil 3d modeling could be its application in morphological comparisons between different taxa. In this study, atlas 3d models of P. tiliensis and Palaeoloxodon antiquus (Falconer and Cautley, 1847) have been combined in a single 3d model that quantifies morphological differences by a color scale, thus minimizing observation error. 3d models and 3d printed replicas facilitate and enhance inter-institutional scientific interaction, minimizing costs and risks related to the transfer of irreplaceable fossil specimens. Finally, a positive outcome related to the above research could be its application in educational activities hosted in institutes such as schools, universities and museums. (C) 2015 Elsevier Ltd and INQUA. All rights reserved.

关键词： Palaeoloxodon tiliensis Allometry Rapid prototyping 3d modelling 3d printing Additive manufacturing

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Coded aperture compressive 3-d LIdAR 40

Coded aperture compressive 3-D LIDAR

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40th IEEE international conference on Acoustics, Speech, and Signal Processing, ICASSP 2015

作者： Kadambi, Achuta Boufounos, Petros T. CambridgeMA United States CambridgeMA United States

ISBN: (纸本)9781467369978

Continuous improvement in optical sensing components, as well as recent advances in signal acquisition theory provide a great opportunity to reduce the cost and enhance the capabilities of depth sensing systems. In this paper we propose a new depth sensing architecture that exploits a fixed coded aperture to significantly reduce the number of sensors compared to conventional systems. We further develop a modeling and reconstruction framework, based on model-based compressed sensing, which characterizes a large variety of depth sensing systems. Our experiments demonstrate that it is possible to reduce the number of sensors by more than 85%, with negligible reduction on the sensing quality. © 2015 IEEE.

关键词： 3-d imaging compressed sensing computational imaging LIdAR time of flight

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international Petroleum Technology conference, IPTC 2015

International Petroleum Technology Conference, IPTC 2015

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9th international Petroleum Technology conference, IPTC 2015

The proceedings contain 185 papers. The topics discussed include: 4d seismic in stacked reservoirs - from puzzles to insights on production drive mechanisms;addressing the unique materials challenges for black sea development;adopting cloud technology to enhance the digital oilfield;advances in application of forward osmosis technology for volume reduction of produced/process water from gas-field operations;fracture characterization by integrating seismic-derived attributes including anisotropy and diffraction imaging with borehole fracture data in an offshore carbonate field, United Arab Emirates;gas reservoir management: how to improve gas production allocation per reservoir in commingled wells using geochemistry technology?;new optical gas imaging technology for quantifying fugitive emission rates;and a novel approach for modeling gas flow behaviors in unconventional reservoirs with nanoporous media.

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