基于结构张量方向引导的改进的W-L纹理合成算法应用研究

Application Research of improved W-L texture synthesis algorithm based on direction guidance of structure tensor

文章设计的算法在Wei和Levoy的思想基础上首先采用结构张量计算出引导图像的方向场,其次在方向场的引导下对样本纹理进行旋转,最后采用邻域相似性查找方法进行纹理合成,为了提升合成效率,文章通过采用向量化树结构的量化方法进行加速,取得了良好的实验效果。文章设计的算法不仅可以应用于方向纹理合成领域,同时通过拓展相关技术也可运用到非真实感绘制与渲染方面。

The algorithm designed in this paper is based on Wei and Levoy's idea.Firstly,the direction field of the guide image is calculated by using the structure tensor.Secondly,the sample texture is rotated under the guidance of the direction field.Finally,the texture synthesis is carried out by using the neighborhood similarity search method.In order to improve the synthesis efficiency,the quantization method of vectorization tree structure is used to accelerate the synthesis,and good results are achieved The results were verified.The algorithm designed in this paper can not only be applied to the field of directional texture synthesis,but also can be applied to non photorealistic rendering and rendering by expanding related technologies.