Multimedia Information Retrieval

Multimedia Information Retrieval

Stefan Rueger
ISBN: 9781608450978 | PDF ISBN: 9781608450985
Copyright © 2009 | 171 Pages | Publication Date: 01/01/2009

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At its very core multimedia information retrieval means the process of searching for and finding multimedia documents; the corresponding research field is concerned with building the best possible multimedia search engines. The intriguing bit here is that the query itself can be a multimedia excerpt: For example, when you walk around in an unknown place and stumble across an interesting landmark, would it not be great if you could just take a picture with your mobile phone and send it to a service that finds a similar picture in a database and tells you more about the building -- and about its significance, for that matter? This book goes further by examining the full matrix of a variety of query modes versus document types. How do you retrieve a music piece by humming? What if you want to find news video clips on forest fires using a still image? The text discusses underlying techniques and common approaches to facilitate multimedia search engines from metadata driven retrieval, via piggy-back text retrieval where automated processes create text surrogates for multimedia, automated image annotation and content-based retrieval. The latter is studied in great depth looking at features and distances, and how to effectively combine them for efficient retrieval, to a point where the readers have the ingredients and recipe in their hands for building their own multimedia search engines.

Supporting users in their resource discovery mission when hunting for multimedia material is not a technological indexing problem alone. We look at interactive ways of engaging with repositories through browsing and relevance feedback, roping in geographical context, and providing visual summaries for videos. The book concludes with an overview of state-of-the-art research projects in the area of multimedia information retrieval, which gives an indication of the research and development trends and, thereby, a glimpse of the future world.

Table of Contents

What is Multimedia Information Retrieval?
Basic Multimedia Search Technologies
Content-based Retrieval in Depth
Added Services
Multimedia Information Retrieval Research
Summary

About the Author(s)

Stefan Rueger, The Open University
I am a Professor of Knowledge Media at the Knowledge Media Institute, The Open University, UK, and an Honorary Professor (2009-2014) at the Department of Computer Science, University of Waikato, New Zealand. I hold a diploma in Theoretical Physics (equivalent to MSc) from Freie Universitat Berlin and received my PhD (Dr rer nat) from Technische Universitat Berlin's Informatik Department for my work on the theory of artificial neural networks. Between 1999 and 2004 I held an EPSRC Advanced Research Fellowship at the Department of Computing of Imperial College London where I carved out my academic career from PostDoc (1997) to Reader in Multimedia and Information Systems (2005). My research has evolved over the years from theory of artificial neural networks over data mining and knowledge management to applications in multimedia search engines. At the Knowledge Media Institute I direct a small Multimedia and Information Systems team. I am still involved in the Multimedia Knowledge Management research network that I helped set up. Currently, I am Principal Investigator for The Open University in the European funded PHAROS project (2007-2009).

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