三维环境建模中多边形物体的动态注视控制细节水平

Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062) Pub Date : 1999-10-04 DOI:10.1109/IM.1999.805362

H. Zha, Y. Makimoto, T. Hasegawa

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引用次数: 17

摘要

我们提出了一种新的方法来控制细节水平(lod)的三角多边形物体的注视驱动的方法。该方法依赖于一种分层网格表示，我们称之为顶点的合并和分裂树(MST)，其中对象以几乎连续的lod描述。LOD控制的思想是在注视点和中央凹区域的几何定义下自适应地调整网格形状质量。它不仅可以生成一个平滑过渡lod的圆形中央凹区域，而且还可以实时更新移动凝视的整个网格。我们已经将我们的LOD控制技术应用于几个大型模型，结果表明，该方法可以有效地揭示在三维表面上自由移动的注视点引导下的中央凹区域的高细节。

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Dynamic gaze-controlled levels of detail of polygonal objects in 3-D environment modeling

We present a new method for controlling levels of detail (LODs) of triangulated polygonal objects by a gaze-driven approach. The method relies upon a hierarchical mesh representation we call a merge-and-split tree (MST) of vertices, in which objects are described at nearly continuous LODs. The idea behind the LOD control is to adjust the mesh shape quality adaptively under a geometrical definition of gaze points and fovea regions. Not only does it generate a circular fovea region with smooth transition of LODs, but it also makes possible a real time updating of the whole mesh for moving gaze. We have applied our LOD control technique to several large models, and the results show that the method is effective in revealing high details in a fovea region guided by a gaze point moving freely across 3D surfaces.

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Second International Conference on 3-D Digital Imaging and Modeling (Cat. No.PR00062)

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