IMAGE REPRESENTATION, INDEXING AND RETRIEVAL BASED ON SPATIAL �RELATIONSHIPS AND PROPERTIES OF OBJECTS
Abstract
IN THIS THESIS, A NEW METHODOLOGY IS PRESENTED WHICH SUPPORTS THE EFFICIENT REPRESENTATION, INDEXING AND RETRIEVAL OF IMAGES BY CONTENT. IMAGES MAY BE INDEXED AND ACCESSED BASED ON SPATIAL RELATIONSHIPS BETWEEN OBJECTS, PROPERTIES OF INDIVIDUAL OBJECTS AND PROPERTIES OF OBJECT CLASSES. IMAGES ARE FIRST DECOMPOSED INTO GROUPS OF OBJECTS CALLED "IMAGE SUBJECTS" AND ARE INDEXED BY COMPUTING ADDRESSES TO ALL SUCH GROUPS. THIS METHODOLOGY SUPPORTS THE EFFICIENT PROCESSING OF QUERIES BY IMAGE EXAMPLE AND AVOIDS SEARCHING THROUGH THE ENTIRE IMAGE DATABASE. THE PERFORMANCE OF THE PROPOSED METHODOLOGY HAS BEEN COMPARED WITH THE PERFORMANCE OF EXISTING TECHNIQUES OF IMAGE INDEXING AND RETRIEVAL. THE RESULTS DEMONSTRATE SIGNIFICANT PERFORMANCE IMPROVEMENTS.
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