The Interactive Projection Mapping as a Spatial Augmented Reality to Help Collaborative Design: Case Study in Architectural Design

This article describes the first implementation of a new SAR, spatial augmented reality, equipped here with a IPM, interactive projection mapping. It presents and analyses it as a new configuration of CSCW, Computer-Supported Cooperative Work. It reveals its success (support encouraging the collective understanding of complex shapes) but also the precautions and limits of this system of graphic interactive projection on a 3D model (delicate calibration, cognitive overload of utilization). It gives details of the adjustments to the status of coparticipants (more passive), the status of work space (becoming an extended wespace) and the status of the common artifact (unmovable but polymorphic).