An app created for the purpose leads walkers from starting point to finish by means of a chain of photos,each image taking over from where the previous one leaves off.

每张照片都在前一张照片拍摄的地方接收。

问一下，这个定语从句的先行词在哪里呢？take over from sth是替代某物的意思,from 后面是不是省了the place?谢谢老师。