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相关论文: A Privacy-Preserving Image Retrieval Scheme Using …

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Due to the pervasiveness of image capturing devices in every-day life, images of individuals are routinely captured. Although this has enabled many benefits, it also infringes on personal privacy. A promising direction in research on…

密码学与安全 · 计算机科学 2021-02-23 William Croft , Jörg-Rüdiger Sack , Wei Shi

We propose a technique to protect and preserve a private key or a passcode in an encrypted two-dimensional graphical image. The plaintext private key or the passcode is converted into an encrypted QR code and embedded into a real-life color…

密码学与安全 · 计算机科学 2025-07-30 Debesh Choudhury , Sujoy Chakraborty

The recently introduced approach for Encrypted Image Folding is generalized to make it Self Contained. The goal is achieved by enlarging the folded image so as to embed all the necessary information for the image recovery. The need for…

数学物理 · 物理学 2012-09-13 Laura Rebollo-Neira , James Bowley , Anthony Constantinides , Angel Plastino

With the development of imaging methods in wireless communications, enhancing the security and efficiency of image transfer requires image compression and encryption schemes. In conventional methods, encryption and compression are two…

密码学与安全 · 计算机科学 2020-04-07 Behrooz Khadem , Reza Ahmadian

Recently, a novel image encryption scheme based on improved hyperchaotic sequences was proposed. A pseudo-random number sequence, generated by a hyper-chaos system, is used to determine two involved encryption functions, bitwise exclusive…

密码学与安全 · 计算机科学 2016-09-27 Chengqing Li , Yuansheng Liu , Tao Xie , Michael Z. Q. Chen

While large code language models have made significant strides in AI-assisted coding tasks, there are growing concerns about privacy challenges. The user code is transparent to the cloud LLM service provider, inducing risks of unauthorized…

计算与语言 · 计算机科学 2024-10-10 Yalan Lin , Chengcheng Wan , Yixiong Fang , Xiaodong Gu

In this work, a new 4-D hyperchaotic system for image encryption is proposed and its effectiveness is demonstrated by incorporating it into an existing Elliptic Curve Cryptography (ECC) mapping scheme. The proposed system is considered…

密码学与安全 · 计算机科学 2024-11-27 Yehia Lalili , Toufik Bouden , Morad Grimes , Abderrazek Lachouri

With exponential growth in the use of digital image data, the need for efficient transmission methods has become imperative. Traditional image compression techniques often sacrifice image fidelity for reduced file sizes, challenging…

图像与视频处理 · 电气工程与系统科学 2024-10-15 Aryan Kashyap Naveen , Sunil Thunga , Anuhya Murki , Mahati A Kalale , Shriya Anil

In a Private Information Retrieval (PIR) protocol, a user can download a file from a database without revealing the identity of the file to each individual server. A PIR protocol is called $t$-private if the identity of the file remains…

信息论 · 计算机科学 2019-03-06 Netanel Raviv , Itzhak Tamo , Eitan Yaakobi

Compressing the sign information of discrete cosine transform (DCT) coefficients is an intractable problem in image coding schemes due to the equiprobable characteristics of the signs. To overcome this difficulty, we propose an efficient…

信息论 · 计算机科学 2024-05-13 Kei Suzuki , Chihiro Tsutake , Keita Takahashi , Toshiaki Fujii

Joint source and channel coding (JSCC) has attracted increasing attention due to its robustness and high efficiency. However, JSCC is vulnerable to privacy leakage due to the high relevance between the source image and channel input. In…

密码学与安全 · 计算机科学 2023-09-20 Lunan Sun , Yang Yang , Mingzhe Chen , Caili Guo

Image data has been greatly produced by individuals and commercial vendors in the daily life, and it has been used across various domains, like advertising, medical and traffic analysis. Recently, image data also appears to be greatly…

机器学习 · 计算机科学 2020-02-11 Sen Wang , J. Morris Chang

Motivated by surveillance applications with wireless cameras or drones, we consider the problem of image retrieval over a wireless channel. Conventional systems apply lossy compression on query images to reduce the data that must be…

信息论 · 计算机科学 2020-10-21 Mikolaj Jankowski , Deniz Gunduz , Krystian Mikolajczyk

Privacy Preserving Data Mining is a method which ensures privacy of individual information during mining. Most important task involves retrieving information from multiple data bases which is distributed. The data once in the data warehouse…

数据库 · 计算机科学 2012-04-13 P. Kiran , S Sathish Kumar , N. P. Kavya

It is known that JPEG images uploaded to social networks (SNs) are mostly re-compressed by the social network providers. Because of such a situation, a new image identification scheme for double-compressed JPEG images is proposed in this…

图像与视频处理 · 电气工程与系统科学 2019-01-30 Kenta Iida , Hitoshi Kiya

A new technique for data hiding in digital image is proposed in this paper. Steganography is a well known technique for hiding data in an image, but generally the format of image plays a pivotal role in it, and the scheme is format…

多媒体 · 计算机科学 2013-08-01 Adity Sharma , Anoo Agarwal , Vinay Kumar

A private information retrieval (PIR) scheme is a protocol that allows a user to retrieve a file from a database without revealing the identity of the desired file to a curious database. Given a distributed data storage system, efficient…

信息检索 · 计算机科学 2025-08-08 Camilla Hollanti , Neehar Verma

In recent years, with the development of cloud computing platforms, privacy-preserving methods for deep learning have become an urgent problem. NeuraCrypt is a private random neural network for privacy-preserving that allows data owners to…

密码学与安全 · 计算机科学 2023-01-13 Zheng Qi , AprilPyone MaungMaung , Hitoshi Kiya

Classifiers deployed in high-stakes real-world applications must output calibrated confidence scores, i.e. their predicted probabilities should reflect empirical frequencies. Recalibration algorithms can greatly improve a model's…

机器学习 · 计算机科学 2020-08-25 Rachel Luo , Shengjia Zhao , Jiaming Song , Jonathan Kuck , Stefano Ermon , Silvio Savarese

In this paper, we propose a privacy-preserving image classification method using encrypted images under the use of the ConvMixer structure. Block-wise scrambled images, which are robust enough against various attacks, have been used for…

计算机视觉与模式识别 · 计算机科学 2022-08-05 Zheng Qi , AprilPyone MaungMaung , Hitoshi Kiya