一种针对基于图像的3D重建网格的简化算法  

A Method for Mesh Simplification Aimed at 3D Reconstruction Mesh Based on Illumination Image

作　　者：张军[1] 戴霞[1] 

机构地区：[1]西华大学计算机与数理学院,成都610039

出　　处：《计算机工程与应用》2006年第8期60-62,86,共4页Computer Engineering and Applications

摘　　要：文章提出了一种针对“基于图像的曲面3D重建网格”的简化算法,利用原曲面光照图像的等灰度值曲线来确定初始简化三角网格,然后通过若干次细分操作改善三角网格的形状,从而形成最终的简化网格。由于所有计算都在平面图像上进行,使得复杂的三维网格简化计算变成相对容易的平面网格简化计算,并同时具有保持原曲面的显示效果的优点。实验结果显示,该算法具有高效的计算速度和良好的显示效果保持特性,并可望应用到更广泛的高度场数据的简化方法中。This paper presents a method for mesh simplification aim at 3D reconstruction mesh based on illumination image.We carry out the algorithm in two steps：first,creating the preliminary mesh by the contour of gray level in illumination image;then,improving the triangular mesh by several subdivisions.It is simpler than traditional algorithm because all compute in this algorithm carry out on a 2D image.The experiment result show that the algorithm has a high efficiency and fine display impression.We hope to apply this algorithm in height-field model.

关 键 词：网格简化 等灰度值曲线 细分算法 3D重建 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]