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Visual cryptography aims to protect images against their possible illegitimate use. Thus, one can cipher, hash, or add watermarks for protecting copyright, among others. In this paper we provide a new solution to the problem of secret…

Cryptography and Security · Computer Science 2023-06-22 José Ignacio Farrán , David Cerezo

Internet of Medical Things (IoMT) can connect many medical imaging equipments to the medical information network to facilitate the process of diagnosing and treating for doctors. As medical image contains sensitive information, it is of…

Cryptography and Security · Computer Science 2020-12-22 Yi Ding , Guozheng Wu , Dajiang Chen , Ning Zhang , Linpeng Gong , Mingsheng Cao , Zhiguang Qin

Over the past years, the ever-growing trend on data storage demand, more specifically for "cold" data (rarely accessed data), has motivated research for alternative systems of data storage. Because of its biochemical characteristics,…

Image and Video Processing · Electrical Eng. & Systems 2023-06-23 Xavier Pic , Eva Gil San Antonio , Melpomeni Dimopoulou , Marc Antonini

We propose a practical framework to address the problem of privacy-aware image sharing in large-scale setups. We argue that, while compactness is always desired at scale, this need is more severe when trying to furthermore protect the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-05 Sohrab Ferdowsi , Behrooz Razeghi , Taras Holotyak , Flavio P. Calmon , Slava Voloshynovskiy

Face de-identification algorithms have been developed in response to the prevalent use of public video recordings and surveillance cameras. Here, we evaluated the success of identity masking in the context of monitoring drivers as they…

This paper presents an empirical study on applying convolutional neural networks (CNNs) to detecting J-UNIWARD, one of the most secure JPEG steganographic method. Experiments guiding the architectural design of the CNNs have been conducted…

Multimedia · Computer Science 2017-04-28 Guanshuo Xu

Cell detection in microscopy images is important to study how cells move and interact with their environment. Most recent deep learning-based methods for cell detection use convolutional neural networks (CNNs). However, inspired by the…

Image and Video Processing · Electrical Eng. & Systems 2022-06-15 Royden Wagner , Karl Rohr

Along with data on the web increasing dramatically, hashing is becoming more and more popular as a method of approximate nearest neighbor search. Previous supervised hashing methods utilized similarity/dissimilarity matrix to get semantic…

Computer Vision and Pattern Recognition · Computer Science 2015-09-07 Jinma Guo , Jianmin Li

Making computer-generated (CG) images more difficult to detect is an interesting problem in computer graphics and security. While most approaches focus on the image rendering phase, this paper presents a method based on increasing the…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Huy H. Nguyen , Ngoc-Dung T. Tieu , Hoang-Quoc Nguyen-Son , Junichi Yamagishi , Isao Echizen

Despite the great success of Convolutional Neural Networks (CNNs) in Computer Vision and Natural Language Processing, the working mechanism behind CNNs is still under extensive discussions and research. Driven by a strong demand for the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-10 Jingyi Shen , Han-Wei Shen

It has recently been demonstrated that spatial resolution adaptation can be integrated within video compression to improve overall coding performance by spatially down-sampling before encoding and super-resolving at the decoder. Significant…

Image and Video Processing · Electrical Eng. & Systems 2021-01-21 Di Ma , Fan Zhang , David R. Bull

Driver assistance systems as well as autonomous cars have to rely on sensors to perceive their environment. A heterogeneous set of sensors is used to perform this task robustly. Among them, radar sensors are indispensable because of their…

Signal Processing · Electrical Eng. & Systems 2019-06-26 Johanna Rock , Mate Toth , Elmar Messner , Paul Meissner , Franz Pernkopf

In this work we investigate how to achieve equivariance to input transformations in deep networks, purely from data, without being given a model of those transformations. Convolutional Neural Networks (CNNs), for example, are equivariant to…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Jianbo Jiao , João F. Henriques

In this paper, we propose an end-to-end mixed-resolution image compression framework with convolutional neural networks. Firstly, given one input image, feature description neural network (FDNN) is used to generate a new representation of…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Lijun Zhao , Huihui Bai , Feng Li , Anhong Wang , Yao Zhao

Features play a crucial role in computer vision. Initially designed to detect salient elements by means of handcrafted algorithms, features are now often learned by different layers in Convolutional Neural Networks (CNNs). This paper…

Computer Vision and Pattern Recognition · Computer Science 2021-11-18 Loris Nanni , Stefano Ghidoni , Sheryl Brahnam

Navigation and mobility are some of the major problems faced by visually impaired people in their daily lives. Advances in computer vision led to the proposal of some navigation systems. However, most of them require expensive and/or heavy…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Fabricio Breve , Carlos Norberto Fischer

This paper presents an unsupervised method to learn a neural network, namely an explainer, to interpret a pre-trained convolutional neural network (CNN), i.e., the explainer uses interpretable visual concepts to explain features in middle…

Machine Learning · Computer Science 2019-01-24 Quanshi Zhang , Yu Yang , Ying Nian Wu

A new digital image encryption method based on fast compressed sensing approach using structurally random matrices and Arnold transform is proposed. Considering the natural images to be compressed in any domain, the fast compressed sensing…

Cryptography and Security · Computer Science 2014-02-20 Nitin Rawat , Pavel Ni , Rajesh Kumar

Convolutional neural networks (CNNs) for biomedical image analysis are often of very large size, resulting in high memory requirement and high latency of operations. Searching for an acceptable compressed representation of the base CNN for…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Suraj Mishra , Peixian Liang , Adam Czajka , Danny Z. Chen , X. Sharon Hu

In the large-scale image retrieval task, the two most important requirements are the discriminability of image representations and the efficiency in computation and storage of representations. Regarding the former requirement, Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Thanh-Toan Do , Tuan Hoang , Dang-Khoa Le Tan , Huu Le , Tam V. Nguyen , Ngai-Man Cheung