| 一种建筑物多分辨网格的生成及显示算法 |
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| 引用本文： | 孙宏元,刘洁,裴继红,杨勋. 一种建筑物多分辨网格的生成及显示算法[J]. 深圳大学学报(理工版), 2005, 22(3): 202-206 |
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| 作者姓名： | 孙宏元 刘洁 裴继红 杨勋 |
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| 作者单位： | 1. 西安电子科技大学电子工程学院,西安,710071;深圳大学,ATR国防重点实验室,深圳,518060
2. 深圳大学,ATR国防重点实验室,深圳,518060 |
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| 基金项目： | 国家863高技术研究发展计划资助项目(2001AA130038)，深圳市科技计划资助项目(200338) |
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| 摘 要： | 基于顶点对迭代收缩的表面简化方法,提出一种建筑物多分辨网格的生成与显示算法.考虑建筑物自身特点,该算法改进了边界保持方法,提高了自动生成的多分辨率建筑物网格的质量,为提高实时浏览速度.该算法简化了顶点对收缩中矩阵求逆的方法,通过建立可逆简化链表记录每次视点变化时的收缩信息,有效提高了视距拉伸浏览的实时性.实验结果显示该算法有效.
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| 关 键 词： | 顶点对收缩 建筑物多分辨率网格 多分辨渐进显示 |
| 文章编号： | 1000-2618(2005)03-0202-05 |
| 收稿时间： | 2005-04-26 |
| 修稿时间： | 2005-04-26 |
A creation and display algorithm applied to building a multi-resolution meshes |
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| SUN Hong-yuan,LIU Jie,PEI Ji-hong,YANG Xun. A creation and display algorithm applied to building a multi-resolution meshes[J]. Journal of Shenzhen University(Science &engineering), 2005, 22(3): 202-206 |
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| Authors: | SUN Hong-yuan LIU Jie PEI Ji-hong YANG Xun |
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| Abstract: | A novel algorithm based on iterative edge contraction surface simplification method was proposed to (generate) and display the multi-resolution building meshes. Benefiting from some characteristics of the building, the (algorithm) improved the quality of generated building data by preserving boundary.A simplified matrix reverse (operation) was introduced in the edge contraction to increase the efficiency of real-time browsing. To improve the real-time capability of the zoom browsing, the contraction information of view transformation is recorded in a (reversible) chain structure. The experiment results have demostrated the efficiency of this new algorithm. |
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| Keywords: | edge contraction multi-resolution building meshes progressive multiresolution display |
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