Cooperative sparse representation in two opposite directions for semi-supervised image annotation

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Zhong-Qiu ZhaoXindong Wu

Abstract

Recent studies have shown that sparse representation (SR) can deal well with many computer vision problems, and its kernel version has powerful classification capability. In this paper, we address the application of a cooperative SR in semi-supervised image annotation which can increase the amount of labeled images for further use in training image classifiers. Given a set of labeled (training) images and a set of unlabeled (test) images, the usual SR method, which we call forward SR, is used to represent each unlabeled image with several labeled ones, and then to annotate the unlabeled image according to the annotations of these labeled ones. However, to the best of our knowledge, the SR method in an opposite direction, that we call backward SR to represent each labeled image with several unlabeled images and then to annotate any unlabeled image according to the annotations of the labeled images which the unlabeled image is selected by the backward SR to represent, has not been addressed so far. In this paper, we explore how much the backward SR can contribute to image annotation, and be complementary to the forward SR. The co-training, which has been proved to be a semi-supervised method improving each other only if two class...Continue Reading

References

Aug 27, 2005·IEEE Transactions on Pattern Analysis and Machine Intelligence·Svetlana LazebnikJean Ponce
Oct 7, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Jingrui HeChangshui Zhang
Apr 19, 2008·IEEE Transactions on Pattern Analysis and Machine Intelligence·Jia Li, James Z Wang
Dec 27, 2008·IEEE Transactions on Pattern Analysis and Machine Intelligence·John WrightYi Ma
Jan 1, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·James E Fowler
Jun 8, 2011·IEEE Transactions on Pattern Analysis and Machine Intelligence·Andrew WagnerYi Ma

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Citations

Apr 15, 2015·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society· Yong Luo Chao Xu
Jan 5, 2021·Neurocomputing·Xiang YuYu-Dong Zhang

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