Catálogo de publicaciones - libros

We present work which organises personal digital photo collections based on contextual information, such as time and location, combined with content-based analysis such as face detection and other feature detectors. The MediAssist demonstration system illustrates the results of our research into digital photo management, showing how a combination of automatically extracted context and content-based information, together with user annotation, facilitates efficient searching of personal photo collections.

In this paper we present our Mediamill video search engine. The basis for the engine is a semantic indexing process which derives a lexicon of 101 concepts. To support the user in navigating the collection, the system defines a visual similarity space, a semantic similarity space, a semantic thread space, and browsers to explore them. It extends upon [1] with improved browsing tools. The search system is evaluated within the TRECVID benchmark [2]. We obtain a top-3 result for 19 out of 24 search topics. In addition, we obtain the highest mean average precision of all search participants.

This paper outlines the technical details of a prototype system for searching and browsing over a million images from the World Wide Web using their visual contents. The system relies on two modalities for accessing images — automated image annotation and NN^ k image network browsing. The user supplies the initial query in the form of one or more keywords and is then able to locate the desired images more precisely using a browsing interface.

Typically, on a daily basis, large amounts of video content are processed by broad-casting stations. This includes from ingest to cutting packages and eventual transmis-sion and storage. New digital broadcast systems are being put in place and these sys-tems are enabling the transition from tape-based to file-based workflow. In addition, news production systems with varying and changing workflows are increasingly be-coming distributed across the bureaus and pushed out into the field. The expectations of news producers and journalists have changed; they want easy access to media for broadcast as well as for package production anywhere in the world, and at anytime. Providing this access to content, when and where needed, significantly impacts the quality of the broadcast product.

This talk unlike many of the others you will hear today is not about the wonderful things that I am currently doing, or the amazing projects that are just around the corner. I was invited today to speak to you about a project that I began in 1996 and that continued in various forms well into 2003.