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Conference Paper
Characterizing Region-Of-Interest In Image Using MPEG-7 Visual Descriptors
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- Authors
- Min-Sung Ryu, Soo-Jun Park, Chee Sun Won
- Issue Date
- 2005-09
- Citation
- Applications of Digital Image Processing XXVIII (SPIE 5909), v.5909, pp.1-9
- Publisher
- SPIE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose a region-based image retrieval system using EHD (Edge Histogram Descriptor) and CLD (Color Layout Descriptor) of MPEG-7 descriptors. The combined descriptor can efficiently describe edge and color features in terms of sub-image regions. That is, the basic unit for the selection of the region-of-interest (ROI) in the image is the sub-image block of the EHD, which corresponds to 16 (i.e., 4×4) non-overlapping image blocks in the image space. This implies that, to have a one-to-one region correspondence between EHD and CLD, we need to take an 8×8 inverse DCT (IDCT) for the CLD. Experimental results show that the proposed retrieval scheme can be used for image retrieval with the ROI based image retrieval for MPEG-7 indexed images.
- KSP Keywords
- Color features, Color layout descriptor, MPEG-7 Visual Descriptors, One-to-one, Region Of Interest(ROI), Region correspondence, Sub-image block, basic unit, edge histogram descriptor, image retrieval system, image space