基于局部差分模式的不变性纹理分类

Invariant Texture Classification Based on Local Difference Patterns

提出了局部差分变换和局部差分模式。局部差分变换具有灰度线性不变性,可消除光照变化对纹理分析的影响。基于局部差分变换的局部差分模式具有光照、旋转不变性和良好的多尺度分析能力。局部差分模式直方图可作为光照、平移、旋转不变性特征用于不变性纹理分类。实验表明,该方法的不变性纹理分类效果优于目前国际公认的基于LBP的方法。

Local difference transform and Local Difference Patterns （LDP） operator are here proposed.Local difference transform is invariant against any monotonic transformation of the gray scale.LDP is gray scale and rotation invariant, and suitable for multi-resolution analysis.Histogram of LDP operators is used as gray scale,translation and rotation invariant features for texture classification.Experiments show that classification rates of textures by this method are higher than LBP.