Cigale (www-inf.int-evry.fr)
The user interface of a Geographical Information System is an important part. Very often, the language is not powerful enough to express end users' queries (or the application developed on the top a GIS does not allow to do that). The CIGALES project aims to study a visual query language for GIS (Cartographical Interface Generating an Adapted Language for Extensible Systems).

Electronic Naplkin - Intelligent Sketching Paper (wallstreet.colorado.edu)

MIT's Photobook (www-white.media.mit.edu)
Photobook is a tool for performing queries on image databases based on image content. It works by comparing features associated with images, not the images themselves. These features are in turn the parameter values of particular models fitted to each image. These models are commonly color, texture, and shape, though Photobook will work with features from any model.

Image Engine Project (www.cml.upmc.edu)
Image Engine is a multimedia electronic medical record system that integrates a wide range of digitized clinical images with textual data stored in the University of Pittsburgh Medical Center's MARS electronic medical record system.

Virage (www.virage.com)
Commercial product with an engine that allows to search videos

TRADEMARK and ART GALLERY Database (www.etl.go.jp)
The TRADEMARK database is a collection of graphical symbols, such as corporation logos, etc., which are authorised at the Patent Office of each nation. In the TRADEMARK system, a user have only to specify, or show, a visual example of graphical symbol to find similar grphical symbols from the database. We call this sort of facility "query by visual example (QVE)".

ImageMiner Project (www.informatik.uni-bremen.de)
This project was formerly called IRIS - Image Retrieval for Information Systems