近来一些研究人员提出了利用图像矩阵直接构造散布矩阵，并在此基础上进行特征抽取的方法。

But they are both based on image vector in image recognition. Recently some researchers propose new methods which are based on image matrix.

youdao

近来一些研究人员提出了利用图像矩阵直接构造散布矩阵，并在此基础上进行特征抽取的方法。

But they are both based on image vector in image recognition. Recently some researchers propose new methods which are based on image matrix.

youdao