采用向量化运算进行图像融合的真实感纹理映射

提出一种基于向量运算体现纹理形变要求的映射对应点获取方法，根据场景表面纹理走势特点划分表面形变控制网格，以网格边界为形变控制向量，通过对控制向量的合成取得映射点；同时，根据对应点亮度进行图像融合达到纹理真实感融入．对于场景表面纹理走势细节性变化给出了网格调整方法，进一步使用三次参数样条曲线拟合映射区域，基于曲率半径进行边界多边形化以实现对映射区域的精确判断．该方法能产生高度真实感的虚拟实景效果．

Realistic Texture Mapping Using Vector Operation for Image Synthesis

A texture mapping algorithm based on vector calculation was presented in the paper to meet the demand of reasonable texture warp on the scene surface. The algorithm divided the scene surface into warp control meshes according to the scene surface feature on the texture pattern distribution. Then, the algorithm used mesh edges as texture warp control vectors. The composite vector based on the control vectors could determine the mapping point. Meanwhile, realistic texture effect was obtained by the brightness synthesis of corresponding mapping points between the scene image and the texture image. For detail changes in the scene surface, a mesh adjusting method was presented. Furthermore, mapping area was obtained by fitting its boundary using cubic parametric spline curves, and a boundary polygonization algorithm based on curvature radius was given to exactly estimate the mapping area. By using the method we may create highly photo-realistic effect.