Content based image retrieval systems

The ability to organize and retrieve visual information such as images and video is becoming a crucial problem for specialists and general computer users alike. Because processing visual information requires perceptual abilities not yet known to exist in computational form, the ability to retrieve visual information without human assistance is a rich, complex, and interesting problem. This paper presents the problem from the point of view of real-world system construction, discusses the main feature extraction methods used in modern CBIR systems, and outlines several CBIR system implementations.