Content-based image object retrieval by scale-space representation of shapes

Mark E. Huffman, Edward K. Wong

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    Vast amounts of inexpensive storage and cost-effective input devices have promoted a rapid increase in the amount of stored digital images and video. Retrieving desired images from image databases is a challenging problem, not easily solved by existing database methods. Shape is one popular feature used to automate retrieval of images by content. Example shape features include the Fourier descriptor for describing shape boundaries, and area or compactness for describing shape regions, among others. We present a new shape-representation method based on extracting an image surface ridge-line called the Most Prominent Ridge-Line (MPRL) in scale-space. The MPRL is extracted by minimizing the second spatial derivative orthogonal to the ridge-line direction. The scale of the MPRL point is proportional to the image object's width. Matching query and database image MPRLs is shown to be an effective method for retrieving images based on shape. A unique feature of the proposed method is that the scale dimension may be weighted to allow for any desired amount of shape details in image retrieval.

    Original languageEnglish (US)
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    EditorsC.C. Jay Kuo, S. Fu Chang, S. Panchanathan
    Number of pages11
    StatePublished - 1998
    EventMultimedia Storage and Archiving Systems III - Boston, MA, United States
    Duration: Nov 2 1998Nov 4 1998


    OtherMultimedia Storage and Archiving Systems III
    Country/TerritoryUnited States
    CityBoston, MA


    • Coarseness
    • Content-based image retrieval
    • Image database
    • Image pyramid
    • Ridge-line
    • Scale-space
    • Shape representation
    • Topography

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics


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