中心矩是图像重要的特征量，由中心矩可以生成Hu距。文章提出了一种用积分图多项式来计算图像各个不同区域中心矩的方法，并将此方法用于求Hu距中，大大缩短了求图像各个不同尺度、不同位置Hu矩的运算时间，可以广泛应用于图像匹配、目标定位等场景。

Central moments are important features of image, from which Hu moments can be derived. A method of integral image polynomial is proposed to compute central moments of different regions in image and is applied to the computation of Hu moments.This method reduces the computation time of Hu moments in different positions and sizes. It can be used in image matching,object localization, etc.