owenqi 发表于 2021-8-31 09:44 
你有查过相关的文献吗,这个我感觉并不属于统计方向的问题。

Thanks a lot. The works they described in your suggestions are quite helpful.
You said it. it's merely an issue of personal interest. The idea of solving jigsaw puzzle using R or whatever programming language came into being while my daughter played the game the other day.
Actually, I've got an idea to segment the outer shape lines by finding the convex points, which is the key of the whole solution.
Since the jigsaw puzzle pieces are of high-precision conformed shape, the issue is not that hard to solve.
And by now, it is of my concern how to find identical but disordered order out of big data chaos.
I just wonder if there is any method of solving a precision problem in a fuzzy way.
