The platform is a collaboration between four laboratories (ALICE, LISA, ATM, and CReA-Patrimoine) around the digitization, exploitation and valorization of 3D data applied to architecture and archaeology. It brings together all the scientific skills around a 3D imaging operating chain, from data acquisition to the production and exploitation of 3D environments or illustrations. The platform also works on theoretical and technical issues of image processing and engineering, spatial representations and on the added value of 3D imaging to the study and development of heritage.