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We investigate the possibility of using multiple-scattering optical media, as resources of randomness in cryptographic tasks pertaining to commitments and auctions. The proposed commitment protocol exploits standard wavefront-shaping and…

Quantum Physics · Physics 2019-10-01 Georgios M. Nikolopoulos

In the present contribution, we introduce a wireless optical communication-based system architecture which is shown to significantly improve the reliability and the spectral and power efficiency of the transcutaneous link in cochlear…

We propose a scheme for authentication of physical keys that are materialized by optical multiple-scattering media. The authentication relies on the optical response of the key when probed by randomly selected coherent states of light, and…

Quantum Physics · Physics 2019-07-04 Georgios M. Nikolopoulos , Eleni Diamanti

In this preliminary work, we propose to design an activity recognition system that is suitable for Industrie 4.0 (I4.0) applications, especially focusing on Learning from Demonstration (LfD) in collaborative robot tasks. More precisely, we…

Robotics · Computer Science 2022-04-06 Rafik Ayari , Matteo Pantano , David Paulius

With wearable devices such as smartwatches on the rise in the consumer electronics market, securing these wearables is vital. However, the current security mechanisms only focus on validating the user not the device itself. Indeed,…

Cryptography and Security · Computer Science 2025-04-15 Hidayet Aksu , A. Selcuk Uluagac , Elizabeth S. Bentley

Optical diffraction tomography (ODT) is a powerful technique for quantitative, label-free reconstruction of the three-dimensional refractive index (RI) distribution of biological samples. While ODT is well established for imaging thin,…

The omnipresent digitalization trend has enabled a number of related malicious activities, ranging from data theft to disruption of businesses, counterfeiting of devices, and identity fraud, among others. Hence, it is essential to implement…

Physical unclonable functions (PUFs), physical objects that are practically unclonable because of their andom and uncontrollable manufacturing variations, are becoming increasingly popular as security primitives and unique identifiers in a…

Cryptography and Security · Computer Science 2022-12-26 E. Marakis , U. Rührmair , M. Lachner , R. Uppu , B. Škorić , P. W. H. Pinkse

Object detection, instance segmentation, and pose estimation are popular visual recognition tasks which require localizing the object by internal or boundary landmarks. This paper summarizes these tasks as location-sensitive visual…

Computer Vision and Pattern Recognition · Computer Science 2021-04-13 Kaiwen Duan , Lingxi Xie , Honggang Qi , Song Bai , Qingming Huang , Qi Tian

Detecting spliced images is one of the emerging challenges in computer vision. Unlike prior methods that focus on detecting low-level artifacts generated during the manipulation process, we use an image retrieval approach to tackle this…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Bor-Chun Chen , Zuxuan Wu , Larry S. Davis , Ser-Nam Lim

Out-of-Distribution (OOD) detection is critical for safe deployment; however, existing detectors often struggle to generalize across datasets of varying scales and model architectures, and some can incur high computational costs in…

Machine Learning · Computer Science 2025-04-04 Litian Liu , Yao Qin

The increasing use of the Internet of Things raises security concerns. To address this, device fingerprinting is often employed to authenticate devices, detect adversaries, and identify eavesdroppers in an environment. This requires the…

Cryptography and Security · Computer Science 2025-12-23 Justin Feng , Amirmohammad Haddad , Nader Sehatbakhsh

When data is transmitted by encoding it in the amplitude of the transmitted signal, such as in Amplitude Shift Keying, the receiver makes a decision on the transmitted data by observing the amplitude of the received signal. Depending on the…

Signal Processing · Electrical Eng. & Systems 2020-02-21 Mohammed Usman , Mohd Wajid , M. Z. Shamim , Mohd Dilshad Ansari , Vinit Kumar Gunjan

A silicon physically unclonable function (PUF) using ring oscillators (ROs) has the advantage of easy application in both an application specific integrated circuit (ASIC) and a field-programmable gate array (FPGA). Here, we provide a…

In this paper, we propose an efficient method to provide personal identification using fingerprint to get better accuracy even in noisy condition. The fingerprint matching based on the number of corresponding minutia pairings, has been in…

Computer Vision and Pattern Recognition · Computer Science 2013-11-15 V. Karthikeyan , V. J. Vijayalakshmi

The scope of this paper is to demonstrate a fully working and compact photonic Physical Unclonable Function (PUF) device capable of operating in real life scenarios as an authentication mechanism and random number generator. For this…

Cryptography and Security · Computer Science 2020-03-12 M. Akriotou , A. Fragkos , D. Syvridis

The rapid integration of artificial intelligence (AI) into Internet of Things (IoT) and edge computing systems has intensified the need for robust, hardware-rooted trust mechanisms capable of ensuring device authenticity and AI model…

Cryptography and Security · Computer Science 2026-04-24 Maryam Taghi Zadeh , Mohsen Ahmadi

We propose a reversible face de-identification method for low resolution video data, where landmark-based techniques cannot be reliably used. Our solution is able to generate a photo realistic de-identified stream that meets the data…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Hugo Proença

Addressing the Out-of-Distribution (OoD) segmentation task is a prerequisite for perception systems operating in an open-world environment. Large foundational models are frequently used in downstream tasks, however, their potential for OoD…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Nazir Nayal , Youssef Shoeb , Fatma Güney

As IoT technologies mature, they are increasingly finding their way into more sensitive domains, such as Medical and Industrial IoT, in which safety and cyber-security are of great importance. While the number of deployed IoT devices…

Cryptography and Security · Computer Science 2023-11-28 Emmanuel Lomba , Ricardo Severino , Ana Fernández Vilas
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