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This work proposes a semantic segmentation network that produces high-quality uncertainty estimates in a single forward pass. We exploit general representations from foundation models and unlabelled datasets through a Masked Image Modeling…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 David S. W. Williams , Matthew Gadd , Paul Newman , Daniele De Martini

In this work we derive a number of chain rules for mutual information quantities, suitable for analyzing quantum cryptography with imperfect devices that leak additional information to an adversary. First, we derive a chain rule between…

Quantum Physics · Physics 2024-12-10 Amir Arqand , Tony Metger , Ernest Y. -Z. Tan

This letter discusses the problem of testing the degree of randomness within an image, particularly for a shuffled or encrypted image. Its key contributions are: 1) a mathematical model of perfectly shuffled images; 2) the derivation of the…

Cryptography and Security · Computer Science 2012-11-08 Yue Wu , Sos Agaian , Joseph P. Noonan

Leakage of confidential information represents a serious security risk. Despite a number of novel, theoretical advances, it has been unclear if and how quantitative approaches to measuring leakage of confidential information could be…

Cryptography and Security · Computer Science 2010-07-07 Jonathan Heusser , Pasquale Malacaria

Separating an image into reflectance and shading layers poses a challenge for learning approaches because no large corpus of precise and realistic ground truth decompositions exists. The Intrinsic Images in the Wild~(IIW) dataset provides a…

Computer Vision and Pattern Recognition · Computer Science 2017-06-13 Thomas Nestmeyer , Peter V. Gehler

The recently developed and publicly available synthetic image generation methods and services make it possible to create extremely realistic imagery on demand, raising great risks for the integrity and safety of online information.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Christos Koutlis , Symeon Papadopoulos

Privacy preserving machine learning is an active area of research usually relying on techniques such as homomorphic encryption or secure multiparty computation. Recent novel encryption techniques for performing machine learning using deep…

Cryptography and Security · Computer Science 2020-04-30 Alex Habeen Chang , Benjamin M. Case

Machine learning models have been shown to be vulnerable to membership inference attacks, i.e., inferring whether individuals' data have been used for training models. The lack of understanding about factors contributing success of these…

Machine Learning · Computer Science 2020-04-29 Farhad Farokhi , Mohamed Ali Kaafar

In this paper, we propose a novel content-based image-retrieval scheme that allows us to use a mixture of plain images and compressible encrypted ones called "encryption-then-compression (EtC) images." In the proposed scheme, extended…

Image and Video Processing · Electrical Eng. & Systems 2022-02-02 Kenta Iida , Hitoshi Kiya

Mutual Information (MI) and Conditional Mutual Information (CMI) are multi-purpose tools from information theory that are able to naturally measure the statistical dependencies between random variables, thus they are usually of central…

Machine Learning · Computer Science 2022-11-22 Bao Duong , Thin Nguyen

In this paper, we propose a privacy-preserving image classification method that uses encrypted images and an isotropic network such as the vision transformer. The proposed method allows us not only to apply images without visual information…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 AprilPyone MaungMaung , Hitoshi Kiya

With millions of images that are shared online on social networking sites, effective methods for image privacy prediction are highly needed. In this paper, we propose an approach for fusing object, scene context, and image tags modalities…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Ashwini Tonge , Cornelia Caragea

The use of mutual information as a tool in private data sharing has remained an open challenge due to the difficulty of its estimation in practice. In this paper, we propose InfoShape, a task-based encoder that aims to remove unnecessary…

Information Theory · Computer Science 2023-06-06 Homa Esfahanizadeh , William Wu , Manya Ghobadi , Regina Barzilay , Muriel Medard

Recently, with the continuous development of deep learning, the performance of named entity recognition tasks has been dramatically improved. However, the privacy and the confidentiality of data in some specific fields, such as biomedical…

Cryptography and Security · Computer Science 2022-09-01 Kaifang Long , Jikun Dong , Shengyu Fan , Yanfang Geng , Yang Cao , Han Zhao , Hui Yu , Weizhi Xu

The scarcity of labeled data often impedes the application of deep learning to the segmentation of medical images. Semi-supervised learning seeks to overcome this limitation by exploiting unlabeled examples in the learning process. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-06-25 Jizong Peng , Marco Pedersoli , Christian Desrosiers

Learning a medical image segmentation model is an inherently ambiguous task, as uncertainties exist in both images (noise) and manual annotations (human errors and bias) used for model training. To build a trustworthy image segmentation…

Image and Video Processing · Electrical Eng. & Systems 2023-08-17 Xinyu Bai , Wenjia Bai

We evaluate the information that can unintentionally leak into the low dimensional output of a neural network, by reconstructing an input image from a 40- or 32-element feature vector that intends to only describe abstract attributes of a…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Kathleen Anderson , Thomas Martinetz

Several recent works in communication systems have proposed to leverage the power of neural networks in the design of encoders and decoders. In this approach, these blocks can be tailored to maximize the transmission rate based on…

Information Theory · Computer Science 2020-07-15 Sina Molavipour , Germán Bassi , Mikael Skoglund

Differential privacy is a notion that has emerged in the community of statistical databases, as a response to the problem of protecting the privacy of the database's participants when performing statistical queries. The idea is that a…

Logic in Computer Science · Computer Science 2012-01-04 Mário S. Alvim , Miguel E. Andrés , Konstantinos Chatzikokolakis , Catuscia Palamidessi

Many applications in image-guided surgery and therapy require fast and reliable non-linear, multi-modal image registration. Recently proposed unsupervised deep learning-based registration methods have demonstrated superior performance…

Image and Video Processing · Electrical Eng. & Systems 2022-10-07 Gerard Snaauw , Michele Sasdelli , Gabriel Maicas , Stephan Lau , Johan Verjans , Mark Jenkinson , Gustavo Carneiro