Developing Presentation Based on Diagrammatic Information Structure by a Virtual Human Agent

本研究项目的目的是设计和开发一个系统，由用户指定和/或自动提取特定数据或信息的本质、结构和重要或显著点，然后制作一个人物动画来解释它们。2005年，我们开发了一个系统，用户可以在其中指定表中元素之间的关系，然后生成动画。这些关系以树状结构表示。为了制作动画，遍历树，并将访问的元素和关系解释为演示场景，包括演讲文本和演示者的手势。解释规则由模板表示。2006年，我们首次将该系统扩展为一个可以为图表和表格生成演示动画的系统。在图形表示中，代理可以解释值序列的趋势（例如，增加或减少）以及显著点（例如，最大值或最小值）。接下来，我们研究了基于特征的显著点候选点自动选择机制。它允许用户选择一些候选点，然后自动生成演示动画，解释所选的值得注意的点。上述工作发表于第五届iast2005可视化、成像和图像处理与SIGGRAPH国际会议。

The purpose of this research project is to design and develop a system where the essence, structure, and important or remarkable points of particular data or information are specified by a user and/or extracted automatically, and then a character animation is produced to explain them.In 2005, we developed a system where a user specifies relationships among elements in tables, and then produce an animation. The relationships are represented in a tree structure. To produce an animation, the tree is traversed and the visited elements and relations are interpreted into presentation scenarios including speech texts and presenter's gestures. The interpretation rules are represented by templates.In 2006, we first extended the system into one that can generate presentation animation for graphs as well as tables. In graphical presentations, the agent can explain the tendencies of sequences of values (for example, increasing or decreasing) as well as the remarkable points (for example, maximum or minimum). Next we studied the mechanism which automatically selects candidates of remarkable points with their features. It enables users to choose some of the candidates, and then the presentation animation explaining the chosen remarkable points is produced automatically.The above work is presented in 5th IASTED International Conference on Visualization, Imaging (VIIP2005), and Image Processing and SIGGRAPH 2006 Research Posters.