Towards Improving Image Annotation with Salient Object Detecting and Neighbor Voting
Automatic image annotation is the process by which keywords are automatically assigned to a digital image. However, results of the state-of-the-art image annotation methods are still far from satisfactory. To tackle this issue, this paper proposes a novel approach to automatically refine the original annotations of images by salient object detecting and neighbor voting. For a given image with original annotations, we segment it to non-overlapping block-based structures and then execute the refined structure clustering process to find salient objects from training dataset. Afterwards, terms of salient objects together with candidate annotations are submitted to social image community, and then returned images with user-supplied tags are used as neighbors to vote for each candidate annotation. Hence, final annotations are constructed by terms of salient objects and the candidate annotations with higher voting score. Experimental results conducted on Corel5K dataset and Flickr photos demonstrate that our method is efficient to improve the performance of image annotations.
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Document Type: Research Article
Publication date: 2012-03-01
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