Architectural Surveying : From a point-cloud to a 3D model, benefits of using theoretical models stemming from the history of representation

ISBN 88-371-1479-6International audienceLaser-based survey techniques give a possibility to scan a large number of points in short period of time. However, the creation of a 3D model basing on such results remains a cumbersome and uneasy task. We present a method that aims at making this task easier. It proposes, on one hand, to use the Image in order to monitor the survey by means of a linkage between the scanner and the camera, and in addition to use morphological models of the objects being surveyed. These models express pieces of the architectural knowledge that history reveals. We will hereafter focus on this second aspect. The authors are involved in a research project conducted In the framework of RIAM, i.e. net of Research and Innovation In Audio-visual and Multimedia