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Two-phase Content-based Image Retrieval Using the Clustering of Feature Vector  

조정원 (한양대학교 전자통신전파공학과)
최병욱 (한양대학교 정보통신대학 정보통신학부)
Publication Information
Abstract
A content-based image retrieval(CBIR) system builds the image database using low-level features such as color, shape and texture and provides similar images that user wants to retrieve when the retrieval request occurs. What the user is interest in is a response time in consideration of the building time to build the index database and the response time to obtain the retrieval results from the query image. In a content-based image retrieval system, the similarity computing time comparing a query with images in database takes the most time in whole response time. In this paper, we propose the two-phase search method with the clustering technique of feature vector in order to minimize the similarity computing time. Experimental results show that this two-phase search method is 2-times faster than the conventional full-search method using original features of ail images in image database, while maintaining the same retrieval relevance as the conventional full-search method. And the proposed method is more effective as the number of images increases.
Keywords
CBIR; Two-phase search method; Clustering; Fast retrieval;
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