Gestalt-based feature similarity measure in trademark database

Hui Jiang, Chong-Wah Ngo, Hung-Khoon Tan
2006 Pattern Recognition  
Motivated by the studies in Gestalt principle, this paper describes a novel approach on the adaptive selection of visual features for trademark retrieval. We consider five kinds of visual saliencies: symmetry, continuity, proximity, parallelism and closure property. The first saliency is based on Zernike moments, while the others are modeled by geometric elements extracted illusively as a whole from a trademark. Given a query trademark, we adaptively determine the features appropriate for
more » ... val by investigating its visual saliencies. We show that in most cases, either geometric or symmetric features can give us good enough accuracy. To measure the similarity of geometric elements, we propose a maximum weighted bipartite graph (WBG) matching algorithm under transformation sets which is found to be both effective and efficient for retrieval.
doi:10.1016/j.patcog.2005.08.012 fatcat:lieuwhw64nggne24rxf6ybruwi