LASER RANGE DATA, PHOTOGRAPHS AND ARCHITECTURAL COMPONENTS

International audienceIn this paper we deal with 3D modelling from point clouds issued from laser scanning and also from photographs. <br />Architectural parametric elements are semi-automatically adjusted in real time to the point cloud by varying the parameters <br />describing the element. The scanned picture is correctly positioned in the virtual scene relatively to the point cloud and to <br />other 3D parts of the scene. In the two cases (photograph and point cloud), points can be selected (3D points in the range <br />image and 2D pixel in the photograph) and the building of the architectural element is processed relatively to the dimensions <br />and positions specified by these points. Our research is carried out on various architectural styles (ancient, classic, gothic, <br />khmer). The application field of our method is wide: it goes from cultural heritage virtual documentation to accurate model <br />for archaeologists based on laser scanning of relics of the past. 3D models of existing buildings for lighting simulation, <br />movie or game sceneries are also other possibilities