最终的权值矩阵就是滤波器的系数，包括主成分分析、因子分析、贝叶斯分析，结合PCA的尺度不变特征变换(SIFT)算法。- The final weight matrix is ??the filter coefficient, Including principal component analysis, factor analysis, Bayesian analysis, Combined with PCA scale invariant feature transform (SIFT) al