IH-006
Region-based image retrieval revisited

◎日並遼太（東大）・佐藤真一（NII/東大）・松井勇佑（NII）

We revisit region based image retrieval by incorporating semantic specification of objects and intuitive specification of spatial relationships. We support multiple aspects of semantic object specification with a multitask CNN to jointly handle multi-aspect object specification. We help users specify spatial relationships among objects in an intuitive way, with recommendations by mining the search results. We can recommend spatial relationships by category names based on language prior. Moreover, object-level inverted indexing and re-ranking are instantaneous.