Boulch, AlexandreHoullier, SimonMarlet, RenaudTournaire, OlivierYaron Lipman and Hao Zhang2015-02-282015-02-2820131467-8659https://doi.org/10.1111/cgf.12170We propose a new approach to automatically semantize complex objects in a 3D scene. For this, we define an expressive formalism combining the power of both attribute grammars and constraint. It offers a practical conceptual interface, which is crucial to write large maintainable specifications. As recursion is inadequate to express large collections of items, we introduce maximal operators, that are essential to reduce the parsing search space. Given a grammar in this formalism and a 3D scene, we show how to automatically compute a shared parse forest of all interpretations - in practice, only a few, thanks to relevant constraints. We evaluate this technique for building model semantization using CAD model examples as well as photogrammetric and simulated LiDAR data.I.2.10 [Artificial Intelligence]Vision and Scene Understanding3D/stereo scene analysisI.3.5 [Computer Graphics]Computational Geometry and Object ModelingObject hierarchiesI.4.8 [Image Processing and Computer Vision]Scene AnalysisObject recognitionI.5.4 [Pattern Recognition]ApplicationsComputer vision