Magallanes: 3D navigation for everybody
Magallanes: 3D navigation for everybody
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Magallanes：适合所有人的 3D 导航
DOI：
10.1145/1321261.1321285
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Joseph Della
中科院分区：
文献类型：
--
作者：
M. Abásolo;Joseph Della
虽然在虚拟世界中的寻路问题已经在一些工作中进行了研究，但它仍然是在互联网上使用3d世界的主要限制之一。本文提出了一个VRML原型，称为马加拉内斯，可以添加到任何新的或现有的三维场景，以帮助用户在三维导航。设计者可以像往常一样定义视点，也可以将虚拟图尔斯定义为视点之间的连接。原型自动生成一个图形用户界面添加到场景中，方便选择感兴趣的地方。当用户选择目的地时，原型通过将A* 算法应用于视点图来自动找到从化身位置到目的地的最佳导航路径。马加拉内斯的创新之一是，视点和连接不仅可以通过原型实例化添加，还可以在用户导航时动态完成。虽然马加拉内斯可以用来帮助任何用户浏览一个VRML场景，我们发现它特别有用的手残疾人的3D导航与传统的鼠标可能变得几乎不可能。马加拉内斯与一个基于视觉的界面相结合进行了测试，该界面可以捕捉面部手势和头部运动来控制鼠标。
Although the problem of wayfinding in virtual worlds has been studied in several works, it still remains as one of the main limitations of using 3d worlds in internet. This paper presents a VRML prototype, called Magallanes, that can be added to any new or existent 3D scene to help users in 3D navigation. The designer can define both viewpoints as usual and also virtual tours as connections between viewpoints. The prototype automatically generates a graphical user interface added to the scene that facilitates the selection of places of interest. When the user selects a destination, the prototype automatically finds the optimal navigation path from the avatar position to the destination, by applying the A* algorithm to the graph of viewpoints. Afterwards, the camera is animated following the generated path. One of Magallanes' novelties is that the viewpoints and connections can not only be added by prototype instantiation, but also can be dynamically done while the user navigates. Although Magallanes can be used to help any user to navigate a VRML scene, we find it particularly useful for persons with hands disabilities to whom 3D navigation with a conventional mouse may become almost impossible. Magallanes was tested in combination with a visual-based interface that captures facial gestures and head movement to control the mouse.