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International Conference on Fog and Mobile Edge Computing (FMEC)

作者： David Martínez Casas Andrea Rey Presas José M. Cotos Yáñez José A. Taboada González Electronics and Computer Science Department Computer Graphics and Data Engineering (COGRADE) Research Group University of Santiago de Compostela Santiago de Compostela Spain

ISBN: (数字)9798350366488

ISBN: (纸本)9798350366495

This article examines the current state of the intelligent building monitoring system created for the University of Santiago de Compostela (USC) in the framework of the OPERE project and proposes a modification based on the Fog Computing paradigm. The study is developed in the context of the European regulations for the energy efficiency of facilities and the reduction of greenhouse gases. The current system implements the data processing in DADIS modules, developed by this research group for the acquisition and flexible transmission of information. These modules provide the information to the monitoring system which offers functionalities such as energy consumption dashboards, configurable operation schedules and ad hoc data visualization. However, the limitations of the current system include the difficulty in scaling the processing of the acquired information and database queries. The described upgrade proposes the extensive use of MQTT to standardize communications and allow the development of stand-alone applications to scale processing. The same architecture facilitates the incorporation of Big Data infrastructures that would solve even more complex query problems than those addressed in this scenario.

关键词： Schedules Smart buildings Multi-access edge computing Architecture Europe computer architecture Regulation Proposals Greenhouse gases Monitoring

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Advances in Visual Computing 1

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丛书名： Lecture Notes in computer science

1000年

作者： George Bebis Richard Boyle Bahram Parvin Darko Koracin Paolo Remagnino Ara Nefian Gopi Meenakshisundaram Valerio Pascucci Jiri Zara Jose Molineros Holger Theisel Tom Malzbender

ISBN: (数字)9783540486275

ISBN: (纸本)9783540486268

It is with great pleasure that we welcome you all to the proceedings of the 2nd InternationalSymposiumonVisualComputing(ISVC2006)heldinLakeTahoe. Followinga successfulmeeting lastyear,wewitnesseda muchstrongerandmore productive event this year. ISVC o?ers a common umbrella for the four main areas of visual computing including vision, graphics, visualization, and virtual reality. Its goal is to provide a forum for researchers, scientists, engineers and practitionersthroughouttheworldtopresenttheirlatestresearch?ndings,ideas, developments and applications in the broader area of visual computing. This year, the program consisted of 13 oral sessions, one poster session, ten special tracks, and six keynote presentations. The response to the call for - pers was very strong. We received more than twice the papers received last year. Speci?cally, we received over 280 submissions for the main symposium from which we accepted 65 papers for oral presentation (23% acceptance) and 56 papers for poster presentation (20% acceptance). Special track papers were solicited separately through the Organizing and Program Committees of each track. A total of 57 papers were accepted for presentation in the special tracks. All papers were reviewed with an emphasis on potential to contribute to the state of the art in the ?eld. Selection criteria included accuracy and originality of ideas, clarity and signi?cance of results, and presentation quality. The review process was quite rigorous, involving two to three independent blind reviews followed by several days of discussion. During the discussion period we tried to correct anomalies and errors that might have existed in the initial reviews.

关键词： Pattern Recognition computer Applications Programming Techniques Image Processing and computer Vision Artificial Intelligence computer graphics

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Advances in Visual Computing 1

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丛书名： Lecture Notes in computer science

1000年

作者： George Bebis Richard Boyle Bahram Parvin Darko Koracin Paolo Remagnino Ara Nefian Gopi Meenakshisundaram Valerio Pascucci Jiri Zara Jose Molineros Holger Theisel Tom Malzbender

ISBN: (数字)9783540486312

ISBN: (纸本)9783540486282

关键词： Software Engineering/Programming and Operating Systems Pattern Recognition Image Processing and computer Vision Artificial Intelligence computer graphics Algorithm Analysis and Problem Complexity

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Sketch-based rotation editing

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Frontiers of Information Technology & Electronic Engineering 2011年第11期12卷

作者： Yue XIE Wei-wei XU Yi-zhou YU Yan-lin WENG School of Computer Science and Technology Zhejiang University Hangzhou 310027 China Internet Graphics Group Microsoft Research Asia Beijing 100190 China Department of Computer Science University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA

We present a sketch-based rotation editing system for enriching rotational motion in keyframe *** a set of keyframe orientations of a rigid object,the user first edits its angular velocity trajectory by sketching curves,and then the system computes the altered rotational motion by solving a variational curve fitting *** solved rotational motion not only satisfies the orientation constraints at the keyframes,but also fits well the user-specified angular velocity *** system is simple and easy to *** demonstrate its usefulness by adding interesting and realistic rotational details to several keyframe animations.

关键词： Quaternions Keyframe interpolation Animation editing

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A system for real-time watercolour rendering

A system for real-time watercolour rendering

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computer graphics International

作者： J. Burgess G. Wyvill S.A. King Computer Graphics and Vision Research Group Department of Computer Science University of Otago New Zealand Computing & Mathematical Sciences Texas A and M Corpus Christi USA

We present a system for the real-time rendering of scenes to produce images like watercolour paintings. Our system uses a hybrid of object space rendering techniques and image plane post processing to attain extremely good results very quickly. We achieve this through graphics processing unit (GPU) programming, hardware accelerated shadow volumes, and the use of noise for various different tasks. We manage to circumvent problems found in both previous image space and object space methods by combining the two.

关键词： Real time systems Rendering (computer graphics) Painting Layout Paints computer graphics computer science Pigmentation computer vision Acceleration

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Comparative Analysis of Magnetic Resonance Fingerprinting Dictionaries via Dimensionality Reduction 1

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1st International Workshop on Graph Learning in Medical Imaging, GLMI 2019 held in conjunction with the 22nd International Conference on Medical Image Computing and computer-Assisted Intervention, MICCAI 2019

作者： Dzyubachyk, Oleh Koolstra, Kirsten Pezzotti, Nicola Lelieveldt, Boudewijn P. F. Webb, Andrew Börnert, Peter Division of Image Processing Department of Radiology Leiden University Medical Center Leiden Netherlands C.J. Gorter Center for High Field MRI Department of Radiology Leiden University Medical Center Leiden Netherlands Computer Graphics and Visualization Group Delft University of Technology Delft Netherlands Philips Research Eindhoven Eindhoven Netherlands Intelligent Systems Department Delft University of Technology Delft Netherlands Philips Research Hamburg Hamburg Germany

ISBN: (数字)9783030358174

ISBN: (纸本)9783030358167

Quality assessment of different Magnetic Resonance Fingerprinting (MRF) sequences and their corresponding dictionaries remains an unsolved problem. In this work we present a method in which we approach analysis of MRF dictionaries by performing dimensionality reduction and representing them as low-dimensional point sets (embeddings). Dimensionality reduction was performed using a modification of the t-Distributed Stochastic Neighbor Embedding (t-SNE) algorithm. First, we demonstrated stability of calculated embeddings that allows neglecting the stochastic nature of t-SNE. Next, we proposed and analyzed two algorithms for comparing the embeddings. Finally, we performed two simulations in which we reduced the MRF sequence/dictionary in length or size and analyzed the influence of this reduction on the resulting embedding. We believe that this research can pave the way to development of a software tool for analysis, including better understanding, optimization and comparison, of different MRF sequences. © 2019, Springer Nature Switzerland AG.

关键词： Magnetic resonance

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Morphable Face Models - An Open Framework

Morphable Face Models - An Open Framework

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International Conference on Automatic Face and Gesture Recognition

作者： Thomas Gerig Andreas Morel-Forster Clemens Blumer Bernhard Egger Marcel Luthi Sandro Schoenborn Thomas Vetter Department of Mathematics and Computer Science Graphics and Vision Research Group Basel Switzerland Dept. of Math. & Comput. Sci. Graphics & Vision Res. Group Basel Switzerland

In this paper, we present a novel open-source pipeline for face registration based on Gaussian processes as well as an application to face image analysis. Non-rigid registration of faces is significant for many applications in computer vision, such as the construction of 3D Morphable face models (3DMMs). Gaussian Process Morphable Models (GPMMs) unify a variety of non-rigid deformation models with B-splines and PCA models as examples. GPMM separate problem specific requirements from the registration algorithm by incorporating domain-specific adaptions as a prior model. The novelties of this paper are the following: (i) We present a strategy and modeling technique for face registration that considers symmetry, multi-scale and spatially-varying details. The registration is applied to neutral faces and facial expressions. (ii) We release an open-source software framework for registration model-building demonstrated on the publicly available BU3D-FE database. The released pipeline also contains an implementation of an Analysis-by-Synthesis model adaption of 2D face images, tested on the Multi-PIE and LFW database. This enables the community to reproduce, evaluate and compare the individual steps of registration to model-building and 3D/2D model fitting. (iii) Along with the framework release, we publish a new version of the Basel Face Model (BFM-2017) with an improved age distribution and an additional facial expression model.

关键词： Face Adaptation models Strain Kernel Shape Deformable models Gaussian processes

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Real virtual environment applications - Now 3

Real virtual environment applications - Now

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3rd Conference on visualization, VIS 1992

作者： Breen, Paul T. Grinstein, Georges G. Mizell, David W. Satava, Richard M. Smith, Bradford Stephens, Michael M. Zeltzer, David Department Head Applied Technology MITRE Corporation BedfordMA United States Continental C3 MITRE Corporation BedfordMA United States Institute for Visualization and Perception Research Computer Science Department University of Massachusetts Lowell LowellMA United States Computing Systems and Environments Boeing Computer Services SeattleWA United States General Surgery Silas B. Hays Army Hospital Fort OrdCA United States University of San Francisco BerkeleyCA United States System Engineering Division Computer Sciences Corporation VicksburgMS United States Computer Graphics and Animation Group Media Laboratory Massachusetts Institute of Technology CambridgeMA United States

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Deterministic Ansätze for the Measurement-based Variational Quantum Eigensolver

arXiv

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arXiv 2023年

作者： Schroeder, Anna Heller, Matthias Gachechiladze, Mariami Merck KGaA Darmstadt Germany Department of Computer Science Technical University of Darmstadt Darmstadt Germany Fraunhofer Institute for Computer Graphics Research IGD Darmstadt Germany Interactive Graphics Systems Group Technical University of Darmstadt Darmstadt Germany

Measurement-based quantum computing (MBQC) is a promising approach to reducing circuit depth in noisy intermediate-scale quantum algorithms such as the Variational Quantum Eigensolver (VQE). Unlike gate-based computing, MBQC employs local measurements on a preprepared resource state, offering a trade-off between circuit depth and qubit count. Ensuring determinism is crucial to MBQC, particularly in the VQE context, as a lack of flow in measurement patterns leads to evaluating the cost function at irrelevant locations. This study introduces MBVQE-ansätze that respect determinism and resemble the widely used problem-agnostic hardware-efficient VQE ansatz. We evaluate our approach using ideal simulations on the Schwinger Hamiltonian and XY-model and perform experiments on IBM hardware with an adaptive measurement capability. In our use case, we find that ensuring determinism works better via postselection than by adaptive measurements at the expense of increased sampling cost. Additionally, we propose an efficient MBQC-inspired method to prepare the resource state, specifically the cluster state, on hardware with heavy-hex connectivity, requiring a single measurement round, and implement this scheme on quantum computers with 27 and 127 qubits. We observe notable improvements for larger cluster states, although direct gate-based implementation achieves higher fidelity for smaller instances. © 2023, CC BY.

关键词： Qubits

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Grand challenge problems in visualization software 3

Grand challenge problems in visualization software

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3rd Conference on visualization, VIS 1992

作者： Treinish, Lloyd A. Butler, David M. Senay, Hikmet Grinstein, Georges G. Bryson, Steve T. Scientific Visualization Systems Group IBM T.J. Watson Research Center Yorktown HeightsNY United States Center for Computational Engineering Sandia National Laboratories LivermoreCA United States Department of Electrical Engineering and Computer Science George Washington University WashingtonDC20052 United States Institute for Visualization and Perception Research University of Massachusetts at Lowell LowellMA01854 United States NASA Ames Research Center Moffett FieldCA94035 United States

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