Abstract: The puzzle assembly problem is important in that it can be applied to many areas such as restoration archeological findings，repairing of fragments，etc.In the paper，the authors investigate the texture features which，study less in current in this field，be applied to the problem，2D FFT spectrum is good at describing the roughness and direction of texture.So using the wedge and ring statistic method to gain the roughness and direction feature then calculating the euclidean distance of the roughness and direction to find the matching puzzles have acquired better effect.The method can improve the speed of automatic puzzles.

Key words: texture, puzzle assembly, Fourier transform, wedge and ring feature, Euclidean distance

摘要： 自动拼图问题可应用到文物修复、碎片拼接等领域，有重要的研究意义。针对目前研究较少的纹理特征在自动拼图中的应用进行了研究，利用二维傅里叶变换的频谱能够很好地描述图像纹理的粗糙度和方向性的特点，采用楔环统计方法提取纹理的粗糙性和方向性特征，然后采用欧式距离分类器的方法，进行相邻拼块的查找，取得了很好的效果，为后续利用形状特征实现精确匹配提供参考，提高了拼接的速度。

关键词: 纹理分析, 自动拼图, 傅里叶变换, 楔环特征, 欧式距离