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IEEE Computer Graphics and Applications

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https://www.readbyqxmd.com/read/29975192/visual-analytics-for-explainable-deep-learning
#1
Jaegul Choo, Shixia Liu
Recently, deep learning has been advancing the state of the art in artificial intelligence to a new level, and humans rely on artificial intelligence techniques more than ever. However, even with such unprecedented advancements, the lack of explanation regarding the decisions made by deep learning models and absence of control over their internal processes act as major drawbacks in critical decision-making processes, such as precision medicine and law enforcement. In response, efforts are being made to make deep learning interpretable and controllable by humans...
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29975191/levelmerge-collaborative-game-level-editing-by-merging-labeled-graphs
#2
Christian Santoni, Gabriele Salvati, Valentina Tibaldo, Fabio Pellacini
Game development is commonly seen as a collaborative effort, with teams cooperating on the same project. Nowadays, a variety of cloud-based services have shown the benefits of performing tasks in real-time collaboration with others. In this article, we present a system for collaborative game level editing. We model this problem as a special instance of merging labeled directed acyclic graphs. We propose an algorithm that guarantees that the shared game level is always coherent between edits, both hierarchically and semantically...
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29975190/spirosurface-a-repulsive-and-attractive-force-display-for-interactive-tabletops-using-a-pneumatic-system
#3
Taku Hachisu, Masaaki Fukumoto
We present SpiroSurface, a novel force display for interactive tabletops. SpiroSurface uses a pneumatic system to generate both repulsive and attractive forces. We develop a prototype with 5x5 grid holes on the surface connected to an air compressor and vacuum tanks through electromagnetic valves. The display can output a maximum of +1.0 and -0.08 megapascal (MPa) pressure from a hole that generates 74 and -6 N force. We investigated the latency of the output pressure through pneumatics and an experiment, which indicated a minimum of 50-ms latency...
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29975189/interactive-partitioning-of-3d-models-into-printable-parts
#4
Aamir Khan Jadoon, Chenming Wu, Yong-Jin Liu, Ying He, Charlie C L Wang
This article presents an easy, flexible and interactive tool for partitioning a 3D model, which is larger than a 3D printers working volume, into printable parts in an intuitive way. Our tool is based on the elegant partitioning optimization framework Chopper. Our tool aims at improving Chopper by providing users three easy-to-use interactive operations: no-go region painting, cutting plane specification and components reunion. With these operations, we show that (1) exhaustive search in the BSP tree-the most time-consuming step in Chopper-can be avoided, (2) more flexible geometric configurations can be provided, (3) users design intention is considered naturally and efficiently, and customized 3D partitioning results can be obtained...
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29975188/lightpainter-creating-long-exposure-imagery-from-videos
#5
Yi-Ling Chen, Zhenyu Tang, Kwan-Liu Ma
This article presents LightPainter, an interactive tool that promotes creative long-exposure photography through an intuitive drawing metaphor and flexible spatiotemporal mapping from videos to composite images. We discuss the power of software-defined exposure and the tools capability to facilitate creating sophisticated long-exposure effects in challenging scenarios.
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29975187/graphically-hearing-enhancing-understanding-of-geospatial-data-through-an-integrated-auditory-and-visual-experience
#6
Aditya Gune, Raffaele De Amicis, Bruno Simoes, Christopher A Sanchez, H Onan Demirel
Effective presentation of data is critical to a users understanding of it. In this manuscript, we explore research challenges associated with presenting large geospatial datasets through a multimodal experience. We also suggest an interaction schema that enhances users cognition of geographic information through a user-driven display that visualizes and sonifies geospatial data.
July 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877809/insights-by-visual-comparison-the-state-and-challenges
#7
Tatiana von Landesberger
Data comparison is one of the core tasks in exploratory analysis, which combines algorithmic analysis and interactive visualization in a visual data comparison process. Comparison of large and complex datasets requires several steps-i.e., a workflow. This article discusses the comparison process, its research challenges, and examples of solutions.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877808/4d-cubism-modeling-animation-and-fabrication-of-artistic-shapes
#8
Quentin Corker-Marin, Alexander Pasko, Valery Adzhiev
This article deals with creating artistic shapes in a cubist style. The authors propose adding cubist features to (or cubification of) time-variant sculptural shapes. A new concept of a 4D cubist camera is introduced for multiple projections from 4D space-time to 3D space, and 3D printing for stop-motion animation is applied.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877807/on-dynamic-scheduling-for-the-gpu-and-its-applications-in-computer-graphics-and-beyond
#9
Markus Steinberger
During the last decade we have witnessed a severe change in computing, as processor clock-rates stopped increasing. Thus, the arguable only way to increase processing power is switching to a parallel computing architecture, like the graphics processing unit (GPU). While a GPU offers tremendous processing power, harnessing this power is often difficult. In our research we tackle this issue, providing various components to allow a wider class of algorithms to execute efficiently on the GPU. These efforts include new processing models for dynamic algorithms with various degrees of parallelism, a versatile task scheduler, based on highly efficient work queues which also support dynamic priority scheduling, and efficient dynamic memory management...
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877806/application-driven-design-help-students-understand-employment-and-see-the-big-picture
#10
Li Liu, Deborah Silver, Karen Bemis
Few tools for career exploration utilize visualizations despite their potential to help students understand the intangible relationships between jobs and majors. Our application-driven design combines the intuitiveness of node-link diagrams and the scalability of aggregation-based techniques to combine an overview of a job database with the option for individualized exploration.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877805/toward-a-multimodal-diagnostic-exploratory-visualization-of-focal-cortical-dysplasia
#11
Shin-Ting Wu, Raphael Voltoline, Wallace Loos, Jose Angel Ivan Rubianes Silva, Lionis Watanabe, Barbara Amorim, Ana Coan, Fernando Cendes, Clarissa L Yasuda
Focal cortical dysplasia (FCD) is a malformation of cortical development and a common cause of pharmacoresistant epilepsy. Resective surgery of clear-cut lesions may be curative. However, the localization of the seizure focus and the evaluation of its spatial extent can be challenging in many situations. For concordance assessment, medical studies show the relevance of accurate correlation of multisource imaging sequences. to improve the sensitivity and specificity of the evaluation. In this paper, we share the process we went through to reach our simple, but effective, solution for integrating multi-volume rendering into an exploratory visualization environment for the diagnosis of FCD...
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877804/management-of-cerebral-aneurysm-descriptors-based-on-an-automatic-ostium-extraction
#12
Monique Meuschke, Tobias Gunther, Ralph Wickenhofer, Markus Gross, Bernhard Preim, Kai Lawonn
We present a framework to manage cerebral aneurysms. Rupture risk evaluation is based on manually extracted descriptors, which is time-consuming. Thus, we provide an automatic solution by considering several questions: How can expert knowledge be integrated? How should meta data be defined? Which interaction techniques are needed for data exploration.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877803/openspace-changing-the-narrative-of-public-dissemination-in-astronomical-visualization-from-what-to-how
#13
Alexander Bock, Emil Axelsson, Carter Emmart, Masha Kuznetsova, Charles Hansen, Anders Ynnerman
We present the development of an open-source software called OpenSpace that bridges the gap between scientific discoveries and public dissemination and thus paves the way for the next generation of science communication and data exploration. We describe how the platform enables interactive presentations of dynamic and time-varying processes by domain experts to the general public. The concepts are demonstrated through four cases: Image acquisitions of the New Horizons and Rosetta spacecraft, the dissemination of space weather phenomena, and the display of high-resolution planetary images...
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877802/belle2vr-a-virtual-reality-visualization-of-subatomic-particle-physics-in-the-belle-ii-experiment
#14
Zach Duer, Leo Piilonen, George Glasson
Belle2VR is an interactive virtual-reality visualization of subatomic particle physics, designed by an interdisciplinary team as an educational tool for learning about and exploring subatomic particle collisions. This article describes the tool, discusses visualization design decisions, and outlines our process for collaborative development.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877801/observations-and-reflections-on-visualization-literacy-in-elementary-school
#15
Fanny Chevalier, Nathalie Henry Riche, Basak Alper, Catherine Plaisant, Jeremy Boy, Niklas Elmqvist
In this article, we share our reflections on visualization literacy and how it might be better developed in early education. We base this on lessons we learned while studying how teachers instruct, and how students acquire basic visualization principles and skills in elementary school. We use these findings to propose directions for future research on visualization literacy.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29877800/exploranation-a-new-science-communication-paradigm
#16
Anders Ynnerman, Jonas Lowgren, Lena Tibell
Science communication is facing a paradigm shift, based on the convergence of exploratory and explanatory visualization. In this article, we coin the term exploranation to denote the way in which visualization methods from scientific exploration can be used to communicate results and how methods in explanatory visualization can enrich exploration.
May 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29994287/interactive-partitioning-of-3d-models-into-printable-parts
#17
Aamir Khan Jadoon, Chenming Wu, Yong-Jin Liu, Ying He, Charlie C L Wang
In this paper, we present an easy, flexible and interactive tool for partitioning a 3D model, which is larger than 3D-printers working volume, into printable parts in an intuitive way. Our presented tool is based on the elegant partitioning optimization framework Chopper. Our tool aims at improving Chopper by providing users three easy-to-use interactive operations: no-go region painting, cutting plane specification and components re-union. With these operations, we show that (1) exhaustive search in the BSP tree --- the most time-consuming step in Chopper --- can be avoided, (2) more flexible geometric configurations can be provided, (3) users design intention is considered naturally and efficiently, and customized 3D partitioning results can be obtained...
March 26, 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672261/challenges-in-visual-analysis-of-ensembles
#18
Patricia Crossno
Modeling physical phenomena through computational simulation increasingly relies on generating a collection of related runs, known as an ensemble. This article explores the challenges we face in developing analysis and visualization systems for large and complex ensemble data sets, which we seek to understand without having to view the results of every simulation run. Implementing approaches and ideas developed in response to this goal, we demonstrate the analysis of a 15K run material fracturing study using Slycat, our ensemble analysis system...
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672260/computational-imaging-and-displays-capturing-and-displaying-richer-representations-of-the-world
#19
Belen Masia
Computational imaging techniques allow capturing richer, more complete representations of a scene through the introduction of novel computational algorithms, overcoming the limitations imposed by hardware and optics. The areas of application range from medical imaging to security, to areas in engineering, to name a few. Computational displays combine optics, hardware and computation to faithfully reproduce the world as seen by our eyes, something that current displays still cannot do. This article looks at a few examples of both, aiming to convey the power of the joint co-design of hardware and computational algorithms, also taking into account visual perception...
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672259/simulation-of-underwater-excavation-using-dredging-procedures
#20
Pavel Kouril, Fotis Liarokapis
Underwater excavation is still a very difficult and demanding task. One of the main problems is how to train inexperienced archaeologists. One of archaeologys most challenging tasks is known as dredging. This article presents a novel system for simulating underwater excavation techniques using immersive VR. The focus is not on simulating swimming but on excavating underwater while following established archaeological methods and techniques. In particular, the use of dredging procedures was implemented by a realistic simulation of sand in real-time performance...
March 2018: IEEE Computer Graphics and Applications
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