ImageNet is an image database organized according to the WordNet hierarchy (currently only the nouns), in which each node of the hierarchy is depicted by hundreds and thousands of images. Currently, it includes an average of over five hundred images per node. The aim of ImageNet is to become a useful resource for researchers, educators, students and all of you who share our passion for pictures. read more >>

The CoPhIR (Content-based Photo Image Retrieval) Test-Collection has been developed to make significant tests on the scalability of the SAPIR project infrastructure (SAPIR: Search In Audio Visual Content Using Peer-to-peer IR) for similarity search.

CoPhIR is now available to the research community to try and compare different indexing technologies for similarity search, with scalability being the key issue. read more >>

ALOI is a color image collection of one-thousand small objects, recorded for scientific purposes. In order to capture the sensory variation in object recordings, we systematically varied viewing angle, illumination angle, and illumination color for each object, and additionally captured wide-baseline stereo images. We recorded over a hundred images of each object, yielding a total of 110,250 images for the collection. read more >>

With the rise of usr-generated content in collaborative tagging environments, it is relatively straightforward to gather large media collections via site-provided APIs. read more >>