一种基于概周期性的纹理图象分析及合成方法

A New Texture Analysis and Synthesis Method Based on Almost Periodic Characters

文章对纹理合成中存在的合成时间过长、合成质量不理想的情况进行分析,发现了对一类具有视觉重复性的纹理,可以利用其本身的性质,加快纹理合成的速度,提高纹理合成的质量。通过对这类纹理特征的研究,引入了概周期纹理的概念,利用固定尺度滑动窗口的灰度距离对其概周期性进行度量,继而采用零搜索技术进行合成。实验证明,对于概周期性纹理,该文提出的算法使得纹理合成速度大大提高,合成质量同于甚至优于传统方法。

This paper is focus on the analysis and research of the current situation of long time cost and poor quality in patch_based sampling texture synthesis.It was found that for a certain type of texture which has visual repeatability, the own character of texture can be used to accelerate the speed of texture synthesis and improve the quality as well. By the researching for this type of texture characters,the concept of almost periodic texture has been introduced.Based on it,this paper provides an algorithm to calculate the almost periodic solution with slip subwindow＇s gray distance, which leads us optimize the precision of matching process.Afterwards,the synthesis is processed by using zero-research technique.It was evidenced from the experiments that,for almost periodic texture,the arithmetic in this paper can highly enhance the speed of texture synthesis process,meanwhile,output image＇s quality is even better than that of traditional methods.