In order to resolve the mismatch between user needs and current image retrieval
techniques, we conducted a study to get more information about what users look for in
images. First, we developed a framework for the classification of image descriptions by
users, based on various classification methods from the literature. The classification
framework distinguishes three related viewpoints on images, namely nonvisual metadata,
perceptual descriptions and conceptual descriptions. For every viewpoint a set of descriptive …