PT Unknown
AU Lluis Pere de las Heras
   Gemma Sanchez
TI And-Or Graph Grammar for Architectural Floorplan Representation, Learning and Recognition. A Semantic, Structural and Hierarchical Model
BT 5th Iberian Conference on Pattern Recognition and Image Analysis
PY 2011
BP 17
EP 24
VL 6669
DI http://dx.doi.org/10.1007/978-3-642-21257-4_3
AB This paper presents a syntactic model for architectural floor plan interpretation. A stochastic image grammar over an And-Or graph is inferred to represent the hierarchical, structural and semantic relations between elements of all possible floor plans. This grammar is augmented with three different probabilistic models, learnt from a training set, to account the frequency of that relations. Then, a Bottom-Up/Top-Down parser with a pruning strategy has been used for floor plan recognition. For a given input, the parser generates the most probable parse graph for that document. This graph not only contains the structural and semantic relations of its elements, but also its hierarchical composition, that allows to interpret the floor plan at different levels of abstraction.
ER