Fourier descr iptor which is invariant to rotation and scaling

麦克风阵列声源定位经典算法旋转不变算法的改进算法。TLS-ESPRIT算法。-Classic microphone array sound source localization algorithm rotation invariant improved algorithm. TLS-ESPRIT algorithm.

Hu矩具有旋转、平移、尺度等特性的不变特征，实验采用这个方法提取图像的7个不变矩特征(Hu moment has the invariant characteristics of rotation, translation, scale and other characteristics, the experiment uses this method to extract the image of the seven invariant moments)