This course is in Mandarin, by 朱士維 Shi-Wei Chu of National Taiwan University.
The introduction (week 2) of the course is interesting. The professor uses an illusion I've not seen before:
It is either a photo of Albert Einstein or Marilyn Monroe (Copyright 2007 by Aude Oliva of MIT). For those who wear glasses (somehow the professor expects everyone wears glasses), it is Marilyn Monroe without glasses. Either way, the difference is made by squinting our eyes.