2013 IEEE Pacific Visualization Symposium (PacificVis)最新文献

Improved grid map layout by point set matching 改进网格地图布局的点集匹配

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1142/S0218195915500077

D. Eppstein, M. V. Kreveld, B. Speckmann, F. Staals

引用次数: 52

Guiding Deep Brain Stimulation interventions by fusing multimodal uncertainty regions 通过融合多模态不确定性区域来指导深部脑刺激干预

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596133

A. Bock, N. Lang, G. Evangelista, R. Lehrke, T. Ropinski

{"title":"Guiding Deep Brain Stimulation interventions by fusing multimodal uncertainty regions","authors":"A. Bock, N. Lang, G. Evangelista, R. Lehrke, T. Ropinski","doi":"10.1109/PacificVis.2013.6596133","DOIUrl":"https://doi.org/10.1109/PacificVis.2013.6596133","url":null,"abstract":"Deep Brain Stimulation (DBS) is a surgical intervention that is known to reduce or eliminate the symptoms of common movement disorders, such as Parkinson's disease, dystonia, or tremor. During the intervention the surgeon places electrodes inside of the patient's brain to stimulate specific regions. Since these regions span only a couple of millimeters, and electrode misplacement has severe consequences, reliable and accurate navigation is of great importance. Usually the surgeon relies on fused CT and MRI data sets, as well as direct feedback from the patient. More recently Microelectrode Recordings (MER), which support navigation by measuring the electric field of the patient's brain, are also used. We propose a visualization system that fuses the different modalities: imaging data, MER and patient checks, as well as the related uncertainties, in an intuitive way to present placement-related information in a consistent view with the goal of supporting the surgeon in the final placement of the stimulating electrode. We will describe the design considerations for our system, the technical realization, present the outcome of the proposed system, and provide an evaluation.","PeriodicalId":179865,"journal":{"name":"2013 IEEE Pacific Visualization Symposium (PacificVis)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123712705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Transfer function design based on user selected samples for intuitive multivariate volume exploration 基于用户选择样本的传递函数设计，用于直观的多元体积探索

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596130

Liang Zhou, C. Hansen

引用次数: 28

Discovering and visualizing patterns in EEG data 发现和可视化脑电图数据模式

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596134

Erik W. Anderson, C. Chong, Gilbert Preston, Cláudio T. Silva

引用次数: 1

Visual task solution strategies in tree diagrams 树形图中的可视化任务解决方案策略

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PACIFICVIS.2013.6596142

Michael Burch, G. Andrienko, N. Andrienko, Markus Höferlin, Michael Raschke, D. Weiskopf

{"title":"Visual task solution strategies in tree diagrams","authors":"Michael Burch, G. Andrienko, N. Andrienko, Markus Höferlin, Michael Raschke, D. Weiskopf","doi":"10.1109/PACIFICVIS.2013.6596142","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2013.6596142","url":null,"abstract":"We investigate visual task solution strategies when exploring traditional, orthogonal, and radial node-link tree layouts, four orientations of the non-radial layouts, as well as varying difficulty of the task. The strategies are identified by examining eye movement data recorded in a controlled user study previously conducted by Burch et al. For detailed analysis of the spatio-temporal structures and patterns in the eye tracking data, we employ visual analytics techniques adopted from related methodology for geographic movement data by Andrienko et al. In this way, we complement the statistical analysis of task completion times and error rates reported by Burch et al. with spatio-temporal strategies that explain the variation in completion times. We identify differences between task solution strategies dependent on layout type, orientation, and task difficulty. Furthermore, we examine differences between groups of participants split according to completion time. Our analysis identifies that for all layouts it took nearly the same time to find the task solution node, but in the radial layout the solution was not confirmed directly. Instead, a more frequent cross-checking occurs afterwards, which is the main reason for the impaired performance of radial layouts.","PeriodicalId":179865,"journal":{"name":"2013 IEEE Pacific Visualization Symposium (PacificVis)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133849276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 54

Visual analysis of uncertainties in ocean forecasts for planning and operation of off-shore structures 海洋预报中不确定性的可视化分析，用于近海结构物的规划和操作

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596144

T. Höllt, A. Magdy, Guoning Chen, G. Gopalakrishnan, I. Hoteit, C. Hansen, M. Hadwiger

{"title":"Visual analysis of uncertainties in ocean forecasts for planning and operation of off-shore structures","authors":"T. Höllt, A. Magdy, Guoning Chen, G. Gopalakrishnan, I. Hoteit, C. Hansen, M. Hadwiger","doi":"10.1109/PacificVis.2013.6596144","DOIUrl":"https://doi.org/10.1109/PacificVis.2013.6596144","url":null,"abstract":"We present a novel integrated visualization system that enables interactive visual analysis of ensemble simulations used in ocean forecasting, i.e, simulations of sea surface elevation. Our system enables the interactive planning of both the placement and operation of off-shore structures. We illustrate this using a real-world simulation of the Gulf of Mexico. Off-shore structures, such as those used for oil exploration, are vulnerable to hazards caused by strong loop currents. The oil and gas industry therefore relies on accurate ocean forecasting systems for planning their operations. Nowadays, these forecasts are based on multiple spatio-temporal simulations resulting in multidimensional, multivariate and multivalued data, so-called ensemble data. Changes in sea surface elevation are a good indicator for the movement of loop current eddies, and our visualization approach enables their interactive exploration and analysis. We enable analysis of the spatial domain, for planning the placement of structures, as well as detailed exploration of the temporal evolution at any chosen position, for the prediction of critical ocean states that require the shutdown of rig operations.","PeriodicalId":179865,"journal":{"name":"2013 IEEE Pacific Visualization Symposium (PacificVis)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132244684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 34

A topologically-enhanced juxtaposition tool for hybrid wind tunnel 混合风洞拓扑增强并置工具

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596135

Yuriko Takeshima, I. Fujishiro, Shigeo Takahashi, T. Hayase

{"title":"A topologically-enhanced juxtaposition tool for hybrid wind tunnel","authors":"Yuriko Takeshima, I. Fujishiro, Shigeo Takahashi, T. Hayase","doi":"10.1109/PacificVis.2013.6596135","DOIUrl":"https://doi.org/10.1109/PacificVis.2013.6596135","url":null,"abstract":"We have developed a hybrid wind tunnel, where 2D measurement-integrated (MI) simulation, which utilizes actual data acquired from real air flow behind a square cylinder, plays an important role in improving the accuracy of the numerical analysis. The wind tunnel requires an accompanying visual analysis tool with which we can effectively peer into the relationships between the actual and simulated flow fields. In this paper, we attempt to exploit an augmented reality display to that end. The basic idea is to superimpose the computationally-visualized MI simulated pressure field onto the actual flow velocity structure physically-visualized with oil misttraced streaklines instantaneously. Spatial registration of these two visual sources is rather straight-forward since the fixed cylinder of the wind tunnel is easily identified, whereas visualizing the MI simulated pressure field can be characterized with a sophisticated scheme based on differential topology. Considering the fact that vortex centers are located at local minima in the pressure field, and each minimum is surrounded by a derived topological feature called ridge cycle, we can colorize the field adaptively and keep track of Karman vortex streets robustly, regardless of drastic change in the Reynolds number of the flow field.","PeriodicalId":179865,"journal":{"name":"2013 IEEE Pacific Visualization Symposium (PacificVis)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114526449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Self-organizing maps for multi-objective pareto frontiers 多目标pareto边界的自组织地图

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596140

Shahar Chen, David Amid, O. M. Shir, Lior Limonad, David Boaz, Ateret Anaby-Tavor, T. Schreck

{"title":"Self-organizing maps for multi-objective pareto frontiers","authors":"Shahar Chen, David Amid, O. M. Shir, Lior Limonad, David Boaz, Ateret Anaby-Tavor, T. Schreck","doi":"10.1109/PacificVis.2013.6596140","DOIUrl":"https://doi.org/10.1109/PacificVis.2013.6596140","url":null,"abstract":"Decision makers often need to take into account multiple conflicting objectives when selecting a solution for their problem. This can result in a potentially large number of candidate solutions to be considered. Visualizing a Pareto Frontier, the optimal set of solutions to a multi-objective problem, is considered a difficult task when the problem at hand spans more than three objective functions. We introduce a novel visual-interactive approach to facilitate coping with multi-objective problems. We propose a characterization of the Pareto Frontier data and the tasks decision makers face as they reach their decisions. Following a comprehensive analysis of the design alternatives, we show how a semantically-enhanced Self-Organizing Map, can be utilized to meet the identified tasks. We argue that our newly proposed design provides both consistent orientation of the 2D mapping as well as an appropriate visual representation of individual solutions. We then demonstrate its applicability with two real-world multi-objective case studies. We conclude with a preliminary empirical evaluation and a qualitative usefulness assessment.","PeriodicalId":179865,"journal":{"name":"2013 IEEE Pacific Visualization Symposium (PacificVis)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121982319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 31

Evaluation of Depth of Field for depth perception in DVR DVR中深度感知的景深评价

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596131

A. Grosset, Mathias Schott, Georges-Pierre Bonneau, C. Hansen

引用次数: 25

Poisson-based tools for flow visualization 基于泊松的流可视化工具

2013 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2013-09-12 DOI: 10.1109/PacificVis.2013.6596151

J. M. Esturo, M. Schulze, Christian Rössl, H. Theisel

引用次数: 9