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相关论文: Learning to Break Deep Perceptual Hashing: The Use…

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Perceptual hashes map images with identical semantic content to the same $n$-bit hash value, while mapping semantically-different images to different hashes. These algorithms carry important applications in cybersecurity such as copyright…

密码学与安全 · 计算机科学 2022-07-29 Jagdeep Singh Bhatia , Kevin Meng

We show that perceptual hashing, crucial for detecting and removing image-based sexual abuse (IBSA) online, faces vulnerabilities from low-budget inversion attacks based on generative AI. This jeopardizes the privacy of users, especially…

密码学与安全 · 计算机科学 2024-12-10 Sophie Hawkes , Christian Weinert , Teresa Almeida , Maryam Mehrnezhad

Content scanning systems employ perceptual hashing algorithms to scan user content for illegal material, such as child pornography or terrorist recruitment flyers. Perceptual hashing algorithms help determine whether two images are visually…

密码学与安全 · 计算机科学 2022-12-09 Ashish Hooda , Andrey Labunets , Tadayoshi Kohno , Earlence Fernandes

With the growth in social media, there is a huge amount of images of faces available on the internet. Often, people use other people's pictures on their own profile. Perceptual hashing is often used to detect whether two images are…

计算机视觉与模式识别 · 计算机科学 2020-09-22 Yigit Alparslan , Ken Alparslan , Mannika Kshettry , Louis Kratz

End-to-end encryption (E2EE) provides strong technical protections to individuals from interferences. Governments and law enforcement agencies around the world have however raised concerns that E2EE also allows illegal content to be shared…

密码学与安全 · 计算机科学 2023-06-22 Shubham Jain , Ana-Maria Cretu , Antoine Cully , Yves-Alexandre de Montjoye

Benefiting from its superior feature learning capabilities and efficiency, deep hashing has achieved remarkable success in large-scale image retrieval. Recent studies have demonstrated the vulnerability of deep hashing models to backdoor…

计算机视觉与模式识别 · 计算机科学 2025-10-10 Ziqi Zhou , Menghao Deng , Yufei Song , Hangtao Zhang , Wei Wan , Shengshan Hu , Minghui Li , Leo Yu Zhang , Dezhong Yao

Content-based file matching has been widely deployed for decades, largely for the detection of sources of copyright infringement, extremist materials, and abusive sexual media. Perceptual hashes, such as Microsoft's PhotoDNA, are one…

密码学与安全 · 计算机科学 2022-12-16 Sean McKeown , William J Buchanan

Large-scale image retrieval using deep hashing has become increasingly popular due to the exponential growth of image data and the remarkable feature extraction capabilities of deep neural networks (DNNs). However, deep hashing methods are…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Shuai Li , Jie Zhang , Yuang Qi , Kejiang Chen , Tianwei Zhang , Weiming Zhang , Nenghai Yu

Hashing has been widely used for large-scale search due to its low storage cost and fast query speed. By using supervised information, supervised hashing can significantly outperform unsupervised hashing. Recently, discrete supervised…

信息检索 · 计算机科学 2018-10-17 Qing-Yuan Jiang , Xue Cui , Wu-Jun Li

Hashing images with a perceptual algorithm is a common approach to solving duplicate image detection problems. However, perceptual image hashing algorithms are differentiable, and are thus vulnerable to gradient-based adversarial attacks.…

计算机视觉与模式识别 · 计算机科学 2020-11-19 Brian Dolhansky , Cristian Canton Ferrer

With the rapid growth of image and video data on the web, hashing has been extensively studied for image or video search in recent years. Benefit from recent advances in deep learning, deep hashing methods have achieved promising results…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Qi Li , Zhenan Sun , Ran He , Tieniu Tan

Recent years have witnessed wide application of hashing for large-scale image retrieval. However, most existing hashing methods are based on hand-crafted features which might not be optimally compatible with the hashing procedure. Recently,…

机器学习 · 计算机科学 2016-04-22 Wu-Jun Li , Sheng Wang , Wang-Cheng Kang

Client-Side Scanning (CSS) see in the Child Sexual Abuse Material Detection (CSAMD) represent ubiquitous mass scanning. Apple proposed to scan their systems for such imagery. CSAMD was since pushed back, but the European Union decided to…

计算机与社会 · 计算机科学 2022-05-31 Kaspar Rosager Ludvigsen , Shishir Nagaraja , Angela Daly

Hashing technology has been widely used in image retrieval due to its computational and storage efficiency. Recently, deep unsupervised hashing methods have attracted increasing attention due to the high cost of human annotations in the…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Qinghong Lin , Xiaojun Chen , Qin Zhang , Shangxuan Tian , Yudong Chen

Hashing methods have been widely used for applications of large-scale image retrieval and classification. Non-deep hashing methods using handcrafted features have been significantly outperformed by deep hashing methods due to their better…

计算机视觉与模式识别 · 计算机科学 2017-07-10 Jingkuan Song , Tao He , Hangbo Fan , Lianli Gao

Customizable image retrieval from large datasets remains a critical challenge, particularly when preserving spatial relationships within images. Traditional hashing methods, primarily based on deep learning, often fail to capture spatial…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Sanggeon Yun , Ryozo Masukawa , SungHeon Jeong , Mohsen Imani

As AI-generated sensitive images become more prevalent, identifying their source is crucial for distinguishing them from real images. Conventional image watermarking methods are vulnerable to common transformations like filters, lossy…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Shree Singhi , Aayan Yadav , Aayush Gupta , Shariar Ebrahimi , Parisa Hassanizadeh

Child Sexual Abuse Media (CSAM) is any visual record of a sexually-explicit activity involving minors. CSAM impacts victims differently from the actual abuse because the distribution never ends, and images are permanent. Machine…

机器学习 · 计算机科学 2021-10-29 Mayana Pereira , Rahul Dodhia , Hyrum Anderson , Richard Brown

Deep hashing improves retrieval efficiency through compact binary codes, yet it introduces severe and often overlooked privacy risks. The ability to reconstruct original training data from hash codes could lead to serious threats such as…

计算机视觉与模式识别 · 计算机科学 2025-11-24 Dongdong Zhao , Qiben Xu , Ranxin Fang , Baogang Song

There is a growing trend in studying deep hashing methods for content-based image retrieval (CBIR), where hash functions and binary codes are learnt using deep convolutional neural networks and then the binary codes can be used to do…

计算机视觉与模式识别 · 计算机科学 2017-11-17 Deng Cai , Xiuye Gu , Chaoqi Wang
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