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。
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.
出处
《测绘学院学报》
北大核心
2005年第4期304-306,共3页
Journal of Institute of Surveying and Mapping
