I found this image long time ago, even if I search with the google images search I could not find the creator to ask him/her how this was created.
I do not think it was created manually. It looks like some sort of processing was done via software.
If you know of any software or some way to create the similar vector image from a raster image within Adobe Illustrator, please advise.
Maybe it is possible to achieve a similar result by using some image processing programming libraries, I have no idea.
This must be the source image: