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Polynomial Algorithm for Submap Isomorphism: Application to Searching Patterns in ImagesProc. of 7th Workshop on Graph-Based Representation in Pattern Recognition (GBR) Lecture Notes in Computer Science 5534, pages 102-112, May 2009, Venice, Italy Abstract: In this paper, we address the problem of searching for a pattern in a plane graph, i.e., a planar drawing of a planar graph. To do that, we propose to model plane graphs with 2-dimensional combinatorial maps, which provide nice data structures for modelling the topology of a subdivision of a plane into nodes, edges and faces. We define submap isomorphism, we give a polynomial algorithm for this problem, and we show how this problem may be used to search for a pattern in a plane graph. First experimental results show the validity of this approach to efficiently search for patterns in images. BibTex references@InProceedings{DHJSS09, author = {Damiand, G. and De La Higuera, C. and Janodet, J.-C. and Samuel, E. and Solnon, C.}, title = {Polynomial Algorithm for Submap Isomorphism: Application to Searching Patterns in Images}, booktitle = {Proc. of 7th Workshop on Graph-Based Representation in Pattern Recognition (GBR)}, series = {Lecture Notes in Computer Science}, publisher = {Springer Berlin/Heidelberg}, volume = {5534}, pages = {102-112}, month = {May}, year = {2009}, address = {Venice, Italy}, url = {https://doi.org/10.1007/978-3-642-02124-4_11} } Image |