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Smartphones are now frequently used by end-users as the portals to cloud-based services, and smartphones are easily stolen or co-opted by an attacker. Beyond the initial log-in mechanism, it is highly desirable to re-authenticate end-users…

Cryptography and Security · Computer Science 2017-03-13 Wei-Han Lee , Ruby Lee

Blind people face significant challenges when using smartphones. The focus on improving non-visual mobile accessibility has been at the level of touchscreen access. Our research investigates the challenges faced by blind people in their…

Human-Computer Interaction · Computer Science 2019-10-31 André Rodrigues , Hugo Nicolau , Kyle Montague , João Guerreiro , Tiago Guerreiro

Recent work indicates that, besides being a challenge in producing perceptually pleasing images, low light proves more difficult for machine cognition than previously thought. In our work, we take a closer look at object detection in low…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Igor Morawski , Yu-An Chen , Yu-Sheng Lin , Winston H. Hsu

In recent years, there has been rapid growth in mobile devices such as smartphones, and a number of applications are developed specifically for the smartphone market. In particular, there are many applications that are ``free'' to the user,…

Cryptography and Security · Computer Science 2013-05-20 Hiroki Kuzuno , Satoshi Tonami

The system to include an android based underground broken wire detection which works by detecting the electromagnetic field around a live underground cable is proposed. The transmission cables undergo stress and strain as they are under the…

Signal Processing · Electrical Eng. & Systems 2021-03-16 V. Jegathesan , T. Jemima Jebaseeli , D. Jasmine David

Mobile devices have become ubiquitous due to centralization of private user information, contacts, messages and multiple sensors. Google Android, an open-source mobile Operating System (OS), is currently the market leader. Android…

Cryptography and Security · Computer Science 2018-08-19 Parvez Faruki , Hossein Fereidooni , Vijay Laxmi , Mauro Conti , Manoj Gaur

Illumination effects in images, specifically cast shadows and shading, have been shown to decrease the performance of deep neural networks on a large number of vision-based detection, recognition and segmentation tasks in urban driving…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Alexandra Carlson , Ram Vasudevan , Matthew Johnson-Roberson

With the growing demand for real-time video enhancement in live applications, existing methods often struggle to balance speed and effective exposure control, particularly under uneven lighting. We introduce RRNet (Rendering Relighting…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Wenlong Yang , Canran Jin , Weihang Yuan , Chao Wang , Lifeng Sun

Low-light image enhancement (LLIE) aims at improving the perception or interpretability of an image captured in an environment with poor illumination. Recent advances in this area are dominated by deep learning-based solutions, where many…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Chongyi Li , Chunle Guo , Linghao Han , Jun Jiang , Ming-Ming Cheng , Jinwei Gu , Chen Change Loy

Android employs a permission framework that empowers users to either accept or deny sharing their private data (for example, location) with an app. However, many apps tend to crash when they are denied permission, leaving users no choice…

Cryptography and Security · Computer Science 2025-12-02 Harish Yadav , Vikas Maurya , Abhilash Jindal , Vireshwar Kumar

A novel method of contrast enhancement is proposed for underexposed images, in which heavy noise is hidden. Under low light conditions, images taken by digital cameras have low contrast in dark or bright regions. This is due to a limited…

Multimedia · Computer Science 2019-04-26 Chien-Cheng Chien , Yuma Kinoshita , Hitoshi Kiya

Due to the continuous improvement of performance and functions, Android remains the most popular operating system on mobile phone today. However, various malicious applications bring great threats to the system. Over the past few years,…

Cryptography and Security · Computer Science 2021-09-03 Ruicong Huang

Mobile phones and tablets have become the most widely used computing devices, with a large predominance of the Android platform. As a natural evolution, the development of Android applications has surged and has become a major field of…

Software Engineering · Computer Science 2018-09-27 Franz-Xaver Geiger , Ivano Malavolta

The proliferation of Internet of Things (IoT) devices has raised significant concerns regarding their security vulnerabilities. This paper explores the security risks associated with smart light systems, focusing on covert communication…

Cryptography and Security · Computer Science 2024-08-28 Ravisha Rohilla , Janvi Panwar

Home automation for many years had faced challenges that limit its spreading around the world. These challenges caused by the high cost of Own such a home, inflexibility system (cannot be monitored outside the home) and issues to achieve…

Cryptography and Security · Computer Science 2023-09-01 Nesreen Mufid

The ubiquity of smartphones, and their very broad capabilities and usage, make the security of these devices tremendously important. Unfortunately, despite all progress in security and privacy mechanisms, vulnerabilities continue to…

Cryptography and Security · Computer Science 2020-06-03 Mohammad Ghafari , Pascal Gadient , Oscar Nierstrasz

Smartphones have become an intrinsic part of human's life. The smartphone unifies diverse advanced characteristics. It enables users to store various data such as photos, health data, credential bank data, and personal information. The…

Cryptography and Security · Computer Science 2019-01-23 Abdelmonim Naway , Yuancheng Li

Consumer lighting plays a significant role in the development of smart cities and smart villages. With the advancement of (IoT) technology, smart lighting solutions have become more prevalent in residential areas as well. These solutions…

Hardware Architecture · Computer Science 2024-11-14 Prajnyajit Mohanty , Umesh C. Pati , Kamalakanta Mahapatra , Saraju P. Mohanty

This paper examines the use of Wireless Sensor Networks interfaced with light fittings to allow for daylight substitution techniques to reduce energy usage in existing buildings. This creates a wire free system for existing buildings with…

Networking and Internet Architecture · Computer Science 2011-01-04 A. A. Nippun Kumaar , Kiran. G , Sudarshan TSB

Smartphones have enabled effortless capturing and sharing of documents in digital form. The documents, however, often undergo various types of degradation due to aging, stains, or shortcoming of capturing environment such as shadow,…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Soumyadeep Dey , Pratik Jawanpuria