Results 61 to 70 of about 169,902 (214)

Influence of Nano Titanium Dioxide Coating on the Dust Accumulation Behavior of Polymethyl Methacrylate

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Polymethyl methacrylate (PMMA) has the advantages of excellent transmittance, light weight, high impact strength, good weather resistance, etc. and can be used as a substitute of glass in solar energy utilization technology. Difference in the roughness of materials can lead to the difference in the adhesion of dust to their surfaces. In this paper, 194 
Chunyu Zhao, Hengsai Song, Xianli Li, Haoran Dai, Xu Fu, Mohammad Rezwan Habib   +5 more
wiley   +1 more source

Deep Learning–Based Image Steganography for Signal Processing and Communication Systems: A Survey of Architectures, Lossy‐Channel Robustness, and Evaluation Practices

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
Image steganography is a signal‐processing and communication‐system problem as much as a security problem: A hidden signal must be embedded, transmitted, and recovered through visual channels while preserving image fidelity and limiting statistically detectable distortion.
Ngoc-Giau Pham, Phuoc-Hung Vo, Hong-Ngoc Tran, Pramita Mishra   +3 more
wiley   +1 more source

A Quantitative Descriptor for Chalky and Discoloration Damage in Rice Grains

Journal of Food Quality, Volume 2026, Issue 1, 2026.
The quality assessment of chalky and discolored rice grains is often limited to either subjective methods or single‐value metrics that fail to capture the finer details of these damages. Despite being detectable and rich in visual features, there is a lack of a quantitative framework for characterizing these damages within a single rice grain in terms ...
Niteen Sapkal, Anoop K. R., Tanishq Selot, Ankur Miglani, Pavan Kumar Kankar, Sahil Kalra, Ayon Chakraborty, Vivian Killet   +7 more
wiley   +1 more source

Content-Based Authentication Using Digital Speech Data [PDF]

Engineering and Technology Journal, 2008
A watermarking technique for speech content and speaker authenticationscheme, which is based on using abstracts of speech features relevant to semanticmeaning and combined with an ID for the speaker is proposed in this paper.
Hanaa M. Salman
doaj   +1 more source

Security on Fragile and Semi-fragile Watermarks Authentication

International Journal of Computer Applications, 2010
ABSTRACT Digital image manipulation software is now readily available on personal computers. It is therefore very simple to tamper with any image and make it available to others. Ensuring digital image security has therefore become a major issue. Watermarking has become a popular technique for copyright enforcement and image authentication.
Shilpi Saha, Debnath Bhattacharyya, Samir Kumar Bandyopadhyay   +2 more
openaire   +1 more source

Quantum Key Distribution With Steganography: A Systematic Review of Hybrid Security Frameworks for Postquantum Cryptography

Quantum Engineering, Volume 2026, Issue 1, 2026.
Quantum computing threatens classical cryptography and the convergence of quantum key distribution (QKD), and steganography offers an unconditionally secure hybrid approach for postquantum communication. QKD ensures provable secrecy via quantum mechanics, while steganography conceals the existence of communication providing stealth and plausible ...
Md. Farhan Shahriyar, Md. Abdulla Al Mamun, Yu-Bo Sheng   +2 more
wiley   +1 more source

Multianalytical Study of Amuletic and Talismanic Islamic‐African Paper Manuscripts in the Slovene Ethnographic Museum

ChemPlusChem, Volume 90, Issue 12, December 10, 2025.
The image illustrates a multi‐technique analysis of Islamic‐African manuscripts from the nineteenth to twentieth centuries. It highlights methods like microscopy, hyperspectral imaging, FTIR, LIF, Raman, LIBS, and furnish analysis used to study paper fibers, inks, and dyes—revealing a blend of local and trade materials and a rich fusion of Qur’anic and
Abdelrazek Elnaggar, Hend Mahgoub, Laura Maestro‐Guijarro, Ana Crespo Ibáñez, Paula María Carmona‐Quiroga, Santiago Sánchez‐Cortés, Žiga Rehar, Gregor Kos, Ahmed Ameen, Marko Frelih, Matija Strlič, Mohamed Oujja, Marta Castillejo   +12 more
wiley   +1 more source

Histogram preserving QIM-based watermarking [PDF]

, 2012
Quantisation-based watermarking schemes are known to be strongly robust to noise and widely applied for image authentication. However, such schemes tend to create specific patterns in the histogram of the watermarked image, thus opening security gap for ...
Li, Yue, Li, Chang-Tsun
core  

An Image Forensic Scheme with Robust and Fragile Watermarking for Business Documents [PDF]

, 2013
This paper proposes an image forensic scheme with both robust and fragile watermarking techniques for business documents. Through a dual watermarking approach, the proposed scheme can achieve image forensics objectives of (a) identification of source; (b)
Kwok, Sai Ho
core   +1 more source

Fragile Watermarking in the Pressure Signal of Online Signatures for Integrity Checking

IEEE Access
Online signature templates are increasingly stored, transmitted, and processed digitally, which raises integrity and provenance concerns. This paper presents a fragile watermarking strategy for online handwritten signatures that embeds a short payload in
Marcos Faundez-Zanuy, Moises Diaz, Miguel A. Ferrer   +2 more
doaj   +1 more source