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Special Issue on Symmetry and Fluid Mechanics
Open AccessArticle

A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search

College of Information Science and Engineering, Xinjiang University, Urumqi 830046, China
Xinjiang Lianhai INA-INT Information Technology Ltd., Urumqi 830000, China
Authors to whom correspondence should be addressed.
Symmetry 2020, 12(2), 282; (registering DOI)
Received: 16 January 2020 / Revised: 2 February 2020 / Accepted: 6 February 2020 / Published: 14 February 2020
With the development of multimedia technology, the secure image retrieval scheme has become a hot research topic. However, how to further improve algorithm performance in the ciphertext needs to be further explored. In this paper, we propose a secure image retrieval scheme based on a deep hash algorithm for index encryption and an improved 4-Dimensional(4-D)hyperchaotic system. The main contributions of this paper are as follows: (1) A novel secure retrieval scheme is proposed to control data transmission. (2) An improved 4-D hyperchaotic system is proposed to preserve privacy. (3) We propose an improved deep pairwise-supervised hashing (DPSH) algorithm and secure kNN to perform index encryption and propose an improved loss function to train the network model. (4) A secure access control scheme is shown, which aims to achieve secure access for users. The experimental results show that the proposed scheme has better retrieval efficiency and better security. View Full-Text
Keywords: multimedia; hyperchaotic; privacy protection; deep hashing multimedia; hyperchaotic; privacy protection; deep hashing
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Du, A.; Wang, L.; Cheng, S.; Ao, N. A Privacy-Protected Image Retrieval Scheme for Fast and Secure Image Search. Symmetry 2020, 12, 282.

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