Digitization and 3D Modeling of Movable Books by Jérôme Dupire. This work on books with complex pages. I would call constructed books, pop-up books, hidden object books, and like.
Earlier work with “flat pages” presented at CIFED 04, JCDL 02, ACM DL 98, SIGGRAPH web3d 01
All done with object oriented programming.
see http://cnum.cnam.fr/
Much like Das project in the earlier work.