Characterizing region-of-interest in image using MPEG-7 visual descriptors

Min Sung Ryu, Soo Jun Park, Chee Sun Won

Research output: Contribution to journalConference articlepeer-review

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.

Original languageEnglish
Article number59090O
Pages (from-to)1-9
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5909
DOIs
StatePublished - 2005
EventApplications of Digital Image Processing XXVIII - San Diego, CA, United States
Duration: 2 Aug 20054 Aug 2005

Keywords

  • CLD
  • EHD
  • Image-Retrieval
  • MPEG-7

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