How should I initialise the dictionary in the implementation of K-svd algorithm?matrix?

 I found that in some pioneers' work, some of them just initialise dictionary with a random matrix of appropriate dimension. Can someone help please???

Answer 1

[John D'Errico]

And why is that a problem?

Do you know of a better way to initialize it?

Does it work? If so, then refer back to my first question.

[Weian Li]

I am not sure, that's why I'm asking. I want to know is that suitable for any occasion? Thank you very much