An image retrieval system performs both keyword-based and content-based image retrieval. A user interface allows a user to specify queries using a combination of keywords and examples images. Depending on the input query, the image retrieval system finds images with keywords that match the keywords in...http://www.google.com/patents/US7529732?utm_source=gb-gplus-sharePatent US7529732 - Image retrieval systems and methods with semantic and feature based relevance feedback
