Hi! Thanks for your answer, Matei. > household_objects_database_msgs/DatabaseModelPose > > # Informs that a specific model from the Model Database has been > # identified at a certain location > > # the database id of the model > int32 model_id > # the pose that it can be found in > geometry_msgs/PoseStamped pose yes, that's precisely what I was thinking about. It's indeed quite simple, and I probably won't link to it, but it's good to know. I *may* go for CollisionObject because, even if we don't use the shape information yet, it may prove useful in the future. Cheers, Severin -- Séverin Lemaignan - lemaigna@in.tum.de [00] PhD student on Cognitive Robotics /|__|\ Technische Uni München - IAS group / LAAS-CNRS - RIS group '' +498928917780 / +33561337844 http://www.laas.fr/~slemaign