fisher_vector.py 文件源码

def dictionary(self, descriptors, N):
        gmm = mixture.GMM(n_components=N, covariance_type='full')
        gmm.fit(descriptors)
        self.means = np.float32(gmm.means_)
        self.covs = np.float32(gmm.covars_)
        self.weights = np.float32(gmm.weights_)
        return self.means, self.covs, self.weights