University of Oulu

Z. Xia, X. Feng, J. Peng and A. Hadid, "Unsupervised deep hashing for large-scale visual search," 2016 Sixth International Conference on Image Processing Theory, Tools and Applications (IPTA), Oulu, 2016, pp. 1-5. doi: 10.1109/IPTA.2016.7821007

Unsupervised deep hashing for large-scale visual search

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Author: Xia, Zhaoqiang1; Feng, Xiaoyi1; Peng, Jinye1;
Organizations: 1School of Electronics and Information, Northwestern Polytechnical University
2Center for Machine Vision Research, University of Oulu
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.2 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2017
Publish Date: 2019-06-06


Learning based hashing plays a pivotal role in large-scale visual search. However, most existing hashing algorithms tend to learn shallow models that do not seek representative binary codes. In this paper, we propose a novel hashing approach based on unsupervised deep learning to hierarchically transform features into hash codes. Within the heterogeneous deep hashing framework, the autoencoder layers with specific constraints are considered to model the nonlinear mapping between features and binary codes. Then, a Restricted Boltzmann Machine (RBM) layer with constraints is utilized to reduce the dimension in the hamming space. The experiments on the problem of visual search demonstrate the competitiveness of our proposed approach compared to the state of the art.

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Series: Proceedings. International Workshops on Image Processing Theory, Tools, and Applications
ISSN: 2154-5111
ISSN-E: 2154-512X
ISSN-L: 2154-5111
ISBN: 978-1-4673-8910-5
ISBN Print: 978-1-4673-8911-2
Article number: 7821007
DOI: 10.1109/IPTA.2016.7821007
Host publication: 2016 Sixth International Conference on Image Processing Theory, Tools and Applications (IPTA), 12 - 15 Dec 2016 Oulu, Finland
Host publication editor: Bordallo López, Miguel
Conference: International Conference on Image Processing Theory, Tools and Applications
Type of Publication: A4 Article in conference proceedings
Field of Science: 222 Other engineering and technologies
Funding: This work is partly supported by the Fundamental Research Funds of Northwestern Polytechnical University (NO.G2015KY0302).
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