Content-based image retrieval in medical applications: a novel multistep approach
Thomas Lehmann, BERTHOLD B. WEIN, Joerg Dahmen, Joerg Bredno, Frank Vogelsang, Michael Kohnen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
In the past few years, immense improvement was obtained in the field of content-based image retrieval. Nevertheless, existing systems still fail when applied to medical image databases. Simple feature-extraction algorithms that operate on the entire image for characterization of color, texture, or shape cannot be related to the descriptive semantics of medical knowledge that is extracted from images by human experts.