Object Extraction Using an Edge-Based Feature for Query-by-Sketch Image Retrieval

Takuya TAKASU  Yoshiki KUMAGAI  Gosuke OHASHI  

IEICE TRANSACTIONS on Information and Systems   Vol.E98-D   No.1   pp.214-217
Publication Date: 2015/01/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2014EDL8147
Type of Manuscript: LETTER
Category: Image Processing and Video Processing
query-by-sketch image retrieval,  object extraction,  partial image retrieval,  edge-based feature,  

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We previously proposed a query-by-sketch image retrieval system that uses an edge relation histogram (ERH). However, it is difficult for this method to retrieve partial objects from an image, because the ERH is a feature of the entire image, not of each object. Therefore, we propose an object-extraction method that uses edge-based features in order to enable the query-by-sketch system to retrieve partial images. This method is applied to 20,000 images from the Corel Photo Gallery. We confirm that retrieval accuracy is improved by using the edge-based features for extracting objects, enabling the query-by-sketch system to retrieve partial images.