| 纹理映射失真处理中的LOD技术 |
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| 引用本文： | 王菲,卢晨琰,夏青,游雄.纹理映射失真处理中的LOD技术[J].测绘学院学报,2005,22(4):304-306. |
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| 作者姓名： | 王菲 卢晨琰 夏青 游雄 |
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| 作者单位： | 信息工程大学,测绘学院,河南郑州450052 |
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| 摘 要： | 纹理映射是计算机图形学中广泛应用的一项重要技术,纹理图像可以描述景物表面各点处的反射属性,模拟景物表面丰富的纹理细节,减少建模的工作量,提高计算机生成图形的真实性.但是由于纹理都为栅格图像,放大和缩小会产生一定程度的失真,所以要对纹理进行细节分层处理.文中主要介绍纹理的重采样和建立金字塔技术,提出减少纹理映射失真的方法.
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| 关 键 词： | 纹理映射 重采样 细节分层（LOD） |
| 文章编号： | 1009-427X（2005）04-304-03 |
| 收稿时间： | 2005-04-01 |
| 修稿时间： | 2005-09-08 |
The Technique of LOD Used in Texture Mapping |
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| WANG Fei, LU Chen-yan, XIA Qing, YOU Xiong.The Technique of LOD Used in Texture Mapping[J].Journal of Institute of Surveying and Mapping,2005,22(4):304-306. |
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| Authors: | WANG Fei LU Chen-yan XIA Qing YOU Xiong |
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| Institution: | Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052 ,China |
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| Abstract: | Texture mapping is an important technique that is extensively applied in the area of calculator graphics. The veins graphics can describe the glint attribute of all the points of the scenery surface, imitate various veins details of the scenery surface, reduce the workload of modeling, and enhance the reliability of the creating calculator graphics. Because the veins graphics are all in the form of grids, enlarging and contracting will certainly produce a certain distortion. So it is necessary for veins graphics to take the technique of LOD. This text mainly presents the re-sampling method and the pyramid technique, puts forward a solution to reduce the distortion of texture mapping. |
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| Keywords: | texture mapping re-sampling lever of detail(LOD) |
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