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Set of visual feature descriptors and their combination in a low-level description scheme

: Ohm, J.-R.; Bunjamin, F.; Liebsch, W.; Makai, B.; Müller, K.; Smolic, A.; Zier, D.


Image communication 16 (2000), No.1, pp.157-179
ISSN: 0923-5965
Journal Article
Fraunhofer HHI ()

This paper reports about descriptors for basic visual information features, which have been developed in the context of the forthcoming MPEG-7 standard. The four basic features supported are color, texture, shape and motion. A search engine system has been developed which supports combinations of basic feature descriptors in a low-level description scheme for similarity-based retrieval of visual (image and video) data. All basic descriptors have been developed so that invariance against common transformations of visual material, e.g. filtering, contrast/color manipulation, resizing, etc., is achieved, and that they are fitted to human perception properties. Furthermore, descriptors have been designed to allow fast, coarse-to-fine search procedures. Elements described in this contribution have been proposed for the MPEG-7 standard. They are currently either included in the MPEG-7 Experimentation Model (XM) or investigated within core experiments, which are performed duri ng the standard's development.