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    基于Wold模型和支持向量机的纹理识别

    Texture Recognition Using the Wold Model and Support Vector Machines

    • 摘要: 提出一种基于Wold模型和支持向量机的纹理识别新方法,有效解决了方向和尺度变化给纹理识别带来的困难.该方法首先对纹理图像进行傅里叶变换和自适应谱分解,将确定域功率谱的扇形区域能量和环形区域能量分布参数作为纹理扩展特征.然后,利用能量分布特征把纹理的主方向旋转到0°,提取旋转后图像的共生矩阵和小波变换统计参数作为基本纹理特征.在两组分别包含25类单色自然纹理的图像库上进行的识别实验表明,该方法获得了良好的识别效果.

       

      Abstract: A new method, based on the Wold texture model and support vector machines (SVMs), is proposed for texture recognition to alleviate the difficulties of charactering texture with different rotation and scale changes. First, Fourier transform and adaptive power spectrum decomposition are performed. Sector energy and ring energy of spectrum are extracted and their mean and standard deviations are calculated as texture features. Then, a texture image is rotated to place its dominant direction at 0° according to the spectral energy distribution. Co-occurrence-matrix-based features and wavelet statistical features of the rotated image are calculated as basic texture features. Texture recognition using the proposed method shows a high performance conducted with two different texture databases both of which include 25 kinds of monochromatic natural textures.

       

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