6 September 2018 Variation consistency of attributes-based postverification method for copy image retrieval
Jinliang Yao, Yanping Jiang, Xinglong Yang, Bing Yang
Author Affiliations +
Abstract
The state-of-the-art approaches of copy image retrieval are based on the bag-of-visual-words model, which represents an image with a set of visual words obtained by quantizing local features. However, the quantization process reduces local features’ discriminative power and thus causes many false matches of local features between images. As a consequence, this brings down the effectiveness of copy image retrieval in large-scale image dataset. In order to handle this problem, postverification methods have been proposed to reject false matches. Previous works of the postverification method focused mainly on geometric relationship consistency among matches of local feature between query image and its candidate for rejecting false candidates. The variation consistency of local feature’s attributes is proposed to verify if two pairs of matches are consistent. The matching reliability of local features can be measured by a voting-based method, which is based on the number of consistent matches between two images. This method can easily integrate more attributes of local feature, such as dominant orientation, position, and scale, rather than position of local feature. Experiments on the large-scale datasets demonstrate the effectiveness and efficiency of the proposed approach and show it outperforms the state-of-the-art postverification approaches.
© 2018 SPIE and IS&T 1017-9909/2018/$25.00 © 2018 SPIE and IS&T
Jinliang Yao, Yanping Jiang, Xinglong Yang, and Bing Yang "Variation consistency of attributes-based postverification method for copy image retrieval," Journal of Electronic Imaging 27(5), 053002 (6 September 2018). https://doi.org/10.1117/1.JEI.27.5.053002
Received: 10 March 2018; Accepted: 20 August 2018; Published: 6 September 2018
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KEYWORDS
Image retrieval

Visualization

Quantization

Feature extraction

Image compression

Convolution

High power microwaves

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