Digital libraries and multimedia databases research at UCSB

B.S. Manjunath
Electrical and Computer Engineering Department, University of California (USA)

**Special date** Tuesday 12 October at 11am

Abstract

In this talk I will present ongoing image processing research related to digital libraries and multimedia databases at UCSB. I will give an overview of the UCSB Alexandria Digital Library (http://www.alexandria.ucsb.edu/) which was one of the six digital library projects funded by NSF in the US, and focuses on geo-referenced data. Phase II of this project (Alexandria Digital Earth Prototype) has just started. In this context, the image processing work relates to critical issues such as segmentation and an object/region based representation, texture analysis, multidimensional indexing, and digital watermarking. In image segmentation, we have recently developed two - fully automated - methods, EdgeFlow and JSEG. These have been tested on thousands of images with visually acceptable segmentation results. An online demo for the JSEG method where in users can drop in their images and obtain the segmented images - is available at http://maya.ece.ucsb.edu/JSEG.

In texture analysis, we will present experimental results on the MPEG-7 dataset for evaluating texture descriptors. I will conclude with some demonstrations on texture features for content based retrieval and image segmentation. (Online demos are available. See http://vivaldi.ece.ucsb.edu/Netra. )

If time permits, I will also show some new interesting results on multimedia data hiding.

Short resume

B. S. Manjunath joined UCSB in 1991, where he is currently an Associate Professor of Electrical and Computer Engineering, after graduating with a Ph.D. from the Signal and Image Processing Institute, Universiy of Southern California. His research interests are in the general area of image and video processing, learning algorithms, and large multimedia databases. He has published over 70 technical papers in various conferences and journals. He is an Associate editor of the IEEE Transactions on Image processing, Associate chair of the ACM Multimedia 99 and a co-Guest editor of the special issue on image and video digital libraries (to be published in the IEEE Trans Image Processing, December 99). He is an active participant in the MPEG-7 ISO standard activity.

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