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| 一种支持超视频创建与可视呈现的草图界面技术 |
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杜一1,2, 吕菲2, 田丰2, 侯文君3,4, 马翠霞2, 戴国忠2
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1.中国科学院 计算机网络信息中心 科学数据中心, 北京 100190;2.人机交互北京市重点实验室. 中国科学院 软件研究所, 北京 100190;3.网络系统与网络文化北京市重点实验室. 北京邮电大学, 北京 100876;4.北京邮电大学 自动化学院, 北京 100876
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| 摘要: |
| 超视频打破了传统视频的单一线性的组织和浏览方式，有效地增强了用户的浏览效率和视频信息的表达能力.基于草图和草图界面在思维表达上的优势，针对目前对视频内容以及视频间或者视频内的关系展示上的不足，提出了一种支持超视频创建的草图界面来直观地表达用户的设计意图，改善了视频编辑过程中的交互体验.提出了一种基于force-directed 的图布局算法.该算法对视频语义进行建模，将时间、空间、视频结构、约束关系等语义信息融入到节点质量、引力和斥力等对象中.系统实例表明，该方法能够很好地适应视频特有的语义类型，表示出超视频的动态创建和编辑过程. |
| 关键词: 超视频 草图用户界面 笔式用户界面 可视呈现 人机交互 |
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| 基金项目:国家重点基础研究发展计划（973）（2006CB303105）；国家自然科学基金（60703079， 41371386） |
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| Sketch-Based Interface for Creation and Visual Representation of Hyper Videos |
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DU Yi,LÜ Fei,TIAN Feng,HOU Wen-Jun,MA Cui-Xia,DAI Guo-Zhong
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1.Scientific Data Center, Computer Network Information Center, The Chinese Academy of Sciences, Beijing 100190, China;2.Beijing Key Laboratory of Human-Computer Interaction. Institute of Software, The Chinese Academy of Sciences, Beijing 100190, China3. Beijing Key Laboratory of Network Systems and Network Culture. Beijing University of Posts and Telecommunications, Beijing 100876, China;3.Automation School, Beijing University of Posts and Telecommunications, Beijing 100876, China
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| Abstract: |
| Due to its nonlinear potential, hyper video offers improvement in users' browsing efficiency and visual information's representation ability compared with that of traditional video. Based on the advantages of sketch and sketch based interface, this paper provides an intuitive sketch based interface for supporting hyper video creation to describe users' intention and improve user experiences. Furthermore, a force-directed graph layout algorithm for representing video semantics is discussed. This algorithm constructs a model for video semantics. It brings attributions such as temporal or spatial information, video structure and constraints between video clips into mass of nodes and attractive forces or repulsive force of edges in the force-directed graph. Result shows that it is an intuitive method to represent the dynamitic process of creation and modification for hyper videos. |
| Key words: hyper video sketch based user interface pen based user interface visual representation human computer interface |
