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International Symposiu on Visual Information Communication and Interaction最新文献

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Facial Expression Generation in 3D Space 三维空间中的面部表情生成
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636876
P. K. S. Udana, A. Dharmarathne
{"title":"Facial Expression Generation in 3D Space","authors":"P. K. S. Udana, A. Dharmarathne","doi":"10.1145/2636240.2636876","DOIUrl":"https://doi.org/10.1145/2636240.2636876","url":null,"abstract":"Facial expression is one of the most powerful resources for people to coordinate conversation and communicate emotions and other mental, social, and physiological cues. Because of human's high sensitivity for facial expressions in many areas such as game, movie, avatars and social robot tries to mimic these facial expressions to their artificial human models to increase realistic feature. This paper proposes a novel methodology of combining ratio mapping technique and difference feature adding mechanism to generate facial expressions for mesh models in 3D space. A 3D point cloud data is taken as the input and preprocessing techniques such as spike removing and down sampling are applied to remove noise points and unwanted data points to improve the smoothness of construction model. Then a 2.5D mesh reconstruction algorithm is applied to generate a 3D face mesh. In the final stage proposed techniques applied to the generated face meshes.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125856421","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: 0
Monocular Human Motion Tracking in Latent Space based on Sequential Immune Genetic Algorithm 基于序列免疫遗传算法的潜在空间单目人体运动跟踪
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636870
Yi Li, Zhenfeng Wu, Ting Sun
{"title":"Monocular Human Motion Tracking in Latent Space based on Sequential Immune Genetic Algorithm","authors":"Yi Li, Zhenfeng Wu, Ting Sun","doi":"10.1145/2636240.2636870","DOIUrl":"https://doi.org/10.1145/2636240.2636870","url":null,"abstract":"In this paper, we formulate human motion tracking as a high dimensional constrained dynamic optimization problem. A novel generative method, called Sequential Immune Genetic Algorithm, is proposed for human motion tracking. The main contribution is that we introduce immune genetic algorithm (IGA) for pose optimization in latent space of human motion. As the latent space is low-dimensional and contains the prior knowledge of human motion, it makes pose analysis more efficient and accurate. We apply IGA for pose optimization. Compared with GA and other evolutionary methods, its main advantage is the ability to use the prior knowledge of human motion. As motion tracking is a dynamic optimization problem, we incorporate the temporal continuity information into the traditional IGA and propose a sequential IGA (S-IGA) algorithm. We demonstrate our methods on different videos of different motion types. Experimental results show that the S-IGA motion tracking method can achieve accurate and stable tracking of 3D human motion.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117100964","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: 0
A Flip-Book of Edge-Splatted Small Multiples for Visualizing Dynamic Graphs 用于可视化动态图形的边缘飞溅小倍数的翻页书
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636839
Michael Burch, D. Weiskopf
{"title":"A Flip-Book of Edge-Splatted Small Multiples for Visualizing Dynamic Graphs","authors":"Michael Burch, D. Weiskopf","doi":"10.1145/2636240.2636839","DOIUrl":"https://doi.org/10.1145/2636240.2636839","url":null,"abstract":"Dynamic graph visualization techniques can be based on animated or static diagrams showing the evolution over time. In this paper, we apply the concept of small multiples representations to visually illustrate the dynamics of a graph. Node-link diagrams are used as the basic visual metaphor for displaying individual graphs of the sequence. To improve the readability of the diagram and reduce visual clutter we apply an edge splatting technique. Here, we discuss the benefits of splatted radial graph layouts on a modifiable 2D grid. Moreover, to obtain a more scalable dynamic graph visualization we interactively support a graph analyst by a Rapid Serial Visual Presentation (RSVP) feature to rapidly flip between the sequences of displayed graphs. The usefulness of the technique is illustrated in two case studies investigating a dynamic call graph and an evolving social network that consists of more than 1,000 graphs.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130487265","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: 22
Adaptive Visualization Interface That Manages User's Cognitive Load Based on Interaction Characteristics 基于交互特征管理用户认知负荷的自适应可视化界面
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636844
A. Yelizarov, D. Gamayunov
{"title":"Adaptive Visualization Interface That Manages User's Cognitive Load Based on Interaction Characteristics","authors":"A. Yelizarov, D. Gamayunov","doi":"10.1145/2636240.2636844","DOIUrl":"https://doi.org/10.1145/2636240.2636844","url":null,"abstract":"Efficiency of visualization interfaces in terms of their users' decisions speed and accuracy in safety-critical areas is extremely important as late or wrong reaction on displayed information may cause at least financial losses (not to mention the damage to human health and/or environment). Users of such systems can be overloaded with the displayed information and therefore it can take them more time to make a decision. In this paper, a novel visualization interface is presented, that can detect its user's cognitive overload and adapt the amount of information to be displayed and its visualization according to user's current cognitive capabilities. Results provided by the conducted user study have demonstrated that such adaptation technique benefits visualization interface efficiency.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"2013 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114040407","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: 18
Generating Reusable Visual Notations using Model Transformation 使用模型转换生成可重用的可视化符号
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636843
Iman Avazpour, J. Grundy, H. Vu
{"title":"Generating Reusable Visual Notations using Model Transformation","authors":"Iman Avazpour, J. Grundy, H. Vu","doi":"10.1145/2636240.2636843","DOIUrl":"https://doi.org/10.1145/2636240.2636843","url":null,"abstract":"Visual notations are a key aspect of visual languages. They provide a direct mapping between the intended information and set of graphical symbols. Visual notations are most often implemented using the low level syntax of programming languages which is time consuming, error prone, difficult to maintain and hardly human-centric. In this paper we describe an alternative approach to generating visual notations using by-example model transformations. In our new approach, a semantic mapping between model and view is implemented using model transformations. The notations resulting from this approach can be reused by mapping varieties of input data to their model and can be composed into different visualisations. Our approach is implemented in the CONVErT framework and has been applied to many visualisation examples. Two case studies for visualising statistical charts and visualisation of traffic data are presented in this paper. A detailed user study of our approach for reusing notations and generating visualisations has been provided that shows good reusability and general acceptance of the novel approach.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132217292","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
Supporting Access Control within a Mockup-based EUDWeb Environment 在基于模型的EUDWeb环境中支持访问控制
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636855
Loredana Caruccio, V. Deufemia, Chris D'Souza, A. Ginige, G. Polese
{"title":"Supporting Access Control within a Mockup-based EUDWeb Environment","authors":"Loredana Caruccio, V. Deufemia, Chris D'Souza, A. Ginige, G. Polese","doi":"10.1145/2636240.2636855","DOIUrl":"https://doi.org/10.1145/2636240.2636855","url":null,"abstract":"End-user development (EUD) is receiving increasing attention, due to the necessity of frequent extensions and personalizations of applications. In particular, EUDWeb technologies have focused on the support of web development tasks which are generally perceived to be complex by end-user developers. However an area of neglect within current EUDWeb environments is the support for the specification and implementation of access control, although it is perceived as a particularly complex task. Thus, in this paper we propose an EUDWeb approach and tool for the specification and generation of web applications embedding access control mechanisms. We extended a previous mockup-based EUDWeb approach by introducing visual assistance mechanisms enabling the specification of role-based access control policies and their plugging within the application logic.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129731976","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: 2
Semantic Human Activity Detection in Videos 视频中的语义人类活动检测
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636874
Hirantha Weerarathna, A. Dharmarathne
{"title":"Semantic Human Activity Detection in Videos","authors":"Hirantha Weerarathna, A. Dharmarathne","doi":"10.1145/2636240.2636874","DOIUrl":"https://doi.org/10.1145/2636240.2636874","url":null,"abstract":"Many solutions have been proposed for human action detection in the past. Even though, almost all the solutions address only the detection of basic human activities such as 'shaking hands', 'sitting down' etc and all of them are based on the structure of the activity pattern. No considerable attention has been paid to detect more semantic activities (more meaningful activities) like 'smoking', 'fighting', 'riding', etc. Therefore existing solutions are not capable of identifying such semantic activities accurately. There are three main reasons behind this inability. First one is most activities do not have any identifiable common action structure in it ('talking'). Secondly even when there is such an identifiable structure that activity pattern does not follow every single instance of activity performing ('smoking'). Third reason is some activities are too complex to identify using such basic action pattern analyses approaches ('hurdling'). Nevertheless ultimate expectation of human activity detection is identifying more complex/meaningful activities. Therefore, it is essential to address this problem properly for implementation of more useful applications in the future. In this paper, we urge the importance of using contextual information associated with semantic activities to overcome above mentioned three problems.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127572625","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: 0
Towards a Cognitive Approach to User-Centered Visualization Design and Evaluation 面向以用户为中心的可视化设计与评价的认知方法
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636848
Weidong Huang, T. Bednarz
{"title":"Towards a Cognitive Approach to User-Centered Visualization Design and Evaluation","authors":"Weidong Huang, T. Bednarz","doi":"10.1145/2636240.2636848","DOIUrl":"https://doi.org/10.1145/2636240.2636848","url":null,"abstract":"How we visualize graph data is important for us to make sense of it. A number of aesthetic criteria have been used in practice to guide the visualization process and judge the quality of graph drawings. These aesthetics are limited since they often conflict with each other. It is generally agreed that in order to make visualizations effective, well-grounded perception and cognitive theories and design principles are needed. Some attempts have been made to develop visualization theories. In this paper, we present a preliminary study which we conducted with a cognitive approach to add to this growing body of research. More specifically, we propose a graph visualization model, which is further conceptualized into a two-stage assessment cycle. Examples of potentially useful methodologies and theories are introduced and their implications for producing user-friendly visualizations are discussed.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133301334","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: 2
Radial vs. Cartesian Revisited: A Comparison of Space-Filling Visualizations 径向与笛卡儿:空间填充可视化的比较
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636871
Minwook Kim, Geoffrey M. Draper
{"title":"Radial vs. Cartesian Revisited: A Comparison of Space-Filling Visualizations","authors":"Minwook Kim, Geoffrey M. Draper","doi":"10.1145/2636240.2636871","DOIUrl":"https://doi.org/10.1145/2636240.2636871","url":null,"abstract":"Radial visualization continues to be a popular design choice in information visualization systems, due perhaps in part to its aesthetic appeal. However, it is an open question whether radial visualizations are truly more effective than their Cartesian counterparts. In this paper, we describe an initial user trial from an ongoing empirical study of the SQiRL (Simple Query interface with a Radial Layout) visualization system, which supports both radial and Cartesian projections of stacked bar charts. Participants were shown 20 diagrams employing a mixture of radial and Cartesian layouts and were asked to perform basic analysis on each. The participants' speed and accuracy for both visualization types were recorded. Our initial findings suggest that, in spite of the widely perceived advantages of Cartesian visualization over radial visualization, both forms of layout are, in fact, equally usable. Moreover, radial visualization may have a slight advantage over Cartesian for certain tasks. In a follow-on study, we plan to test users' ability to create, as well as read and interpret, radial and Cartesian diagrams in SQiRL.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"5 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128822023","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: 2
How Should We Use Colour in Euler Diagrams? 如何在欧拉图中使用颜色?
International Symposiu on Visual Information Communication and Interaction Pub Date : 2014-08-05 DOI: 10.1145/2636240.2636838
A. Blake, Gem Stapleton, P. Rodgers, J. Howse
{"title":"How Should We Use Colour in Euler Diagrams?","authors":"A. Blake, Gem Stapleton, P. Rodgers, J. Howse","doi":"10.1145/2636240.2636838","DOIUrl":"https://doi.org/10.1145/2636240.2636838","url":null,"abstract":"This paper addresses the problem of how best to use colour in Euler diagrams. The choice of using coloured curves, rather than black curves, possibly with coloured fill is often made in tools that automatically draw Euler diagrams for information visualization as well as when they are drawn manually. We address the problem by empirically evaluating various different colour treatments: coloured or black curves combined with either no fill or coloured fill. By collecting performance data, we conclude that Euler diagrams with coloured curves and no fill significantly outperform all other colour treatments. Most automated layout algorithms adopt colour fill and are, thus, reducing the effectiveness of the Euler diagrams produced. As Euler diagrams can be used in a multitude of areas, ranging from crime control to social network analysis, our results stand to increase the ability of users to accurately and quickly extract information from their visualizations.","PeriodicalId":360638,"journal":{"name":"International Symposiu on Visual Information Communication and Interaction","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385189","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: 25
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