Abstract
AbstractAn automatic image annotation approach is proposed to bridge the semantic gap issues in image retrieval. It begins with building connection between semantic concept and image region by image segmentation, and then extracting visual features from image region in order to find the correlativity between semantic concept and image region in the annotated image while annotation, calculating the similarities between different image regions to annotate the unannotated target images, using the given correlativity as a priori knowledge. Experiments conducted on a 2000 image dataset demonstrate the effectiveness and efficiency of the proposed approach for image annotation.KeywordsSemantic ConceptImage RegionVisual FeaturesPriori Knowledgeimage retrieval
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