基于三角网格模型的纹理映射研究  

ON TEXTURE MAPPING BASED ON TRIANGULAR MESH MODEL

作　　者：万燕[1] 王慧洁[1] 鲁俊[1] 

机构地区：[1]东华大学计算机科学与技术系,上海201620

出　　处：《计算机应用与软件》2016年第4期160-163,201,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(81372057)

摘　　要：纹理映射可以在不增加三维模型复杂度的前提下很好地表现三维模型表面的纹理细节,提高三维模型的视觉效果。针对三维网格模型,提出一种用基于纹理图册的方法将模型进行分片,并利用最小二乘保形映射对分割得到的每一片进行平面参数化,控制了形变。再通过建立二维坐标系与纹理坐标系的关系,确定三维模型各个顶点的纹理坐标,从而对三维模型进行纹理映射。实验证明,该方法能得到较好的纹理映射效果,增强了三维模型的真实感。Texture mapping is a good method to display the surface detail of a three-dimensional model without increasing the complexity of the model,and can improve the visual effect of model as well. For triangular mesh model,we presented a texture atlas-based method to slice the model,and used the least squares conformal mapping to conduct plane parameterisation on each segmented piece of surface,this controlled the deformation at the same time. Then we determined the texture coordinate of each vertex of three-dimensional model through the establishment of the relationship between two-dimensional coordinate system and texture coordinate system,thus completed the texture mapping of model. Experiments proved that this method achieved quite good texture mapping effect,and enhanced the realistic nature of three-dimensional model.

关 键 词：纹理映射 平面参数化 纹理坐标 三维模型分割 纹理重建 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]