Content-based image retrieval with scale-space object trees
David Dupplaw, Paul H. Lewis · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
Using recent advances in scale-space decomposition techniques, it is possible to transform images into trees in scale space, which represent the topology of regions within the image. We propose that complex objects can be found in the trees using a combination of subgraph isomorphism testing and conventional feature matching and hence provide a vehicle for achieving content-based retrieval and navigations for complex objects in images.