3DSSG
3DSSG provides 3D semantic scene graphs for 3RScan. A semantic scene graph is defined by a set of tuples between nodes and edges where nodes represent specific 3D object instances in a 3D scan. Nodes are defined by its semantics, a hierarchy of classes as well as a set of attributes that describe the visual and physical appearance of the object instance and their affordances. The edges in our graphs are the semantic relationships (predicates) between the nodes such as standing on, hanging on, more comfortable than or same material.