Content-Based Image Retrieval

Dr Gerald Schaefer

Dr Gerald Schaefer

Loughborough University, U.K.


With image collections, both private and commercial, ever growing, efficient and effective tools for managing these repositories are becoming increasingly important. Clearly, image collections are only of use if they can be queried, yet manual annotation to enable such search is expensive, time consuming and error-prone. Luckily a lot of research in the last two decades has focused on techniques to extract useful data directly from images to facilitate searching large image repositories.

In this tutorial we will explain the underlying techniques, highlight some of the challenges to be overcome, and introduce some recent approaches that provide interesting and useful methods of working with image datasets. The tutorial will be presented in two parts where the first part will provide an introduction to the subject, while the second part will focus on several interesting research issues and present solutions developed in our lab.

Tutorial outline:

Part 1 - Basics:
  • Image databases and problems of manual annotation
  • Image features: colour, texture, and shape
  • Visual similarity and image retrieval
  • Image classification
  • Image annotation
  • From image to video retrieval

Part 2 - Research issues:
  • Colour and colour invariance for image retrieval
  • Compressed domain image retrieval
  • Image database visualisation and browsing

Brief biography of the Speaker

Gerald Schaefer gained his BSc. in Computing from the University of Derby and his PhD in Computer Vision from the University of East Anglia. He worked at the Colour & Imaging Institute, University of Derby (1997-1999), in the School of Information Systems, University of East Anglia (2000-2001), in the School of Computing and Informatics at Nottingham Trent University (2001-2006), and in the School of Engineering and Applied Science at Aston University (2006-2009) before joining the Department of Computer Science at Loughborough University.

His research interests are mainly in the areas of colour image analysis, image retrieval, physics-based vision, medical imaging, and computational intelligence. He has published extensively in these areas with a total publication count exceeding 250. He is a member of the editorial board of more than 10 international journals, reviews for over 60 journals and served on the programme committee of more than 200 conferences. He has been invited as plenary speaker to several conferences, is the organiser of various international workshops and special sessions at conferences, and the editor of several books and special journal issues.

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