Results 41 to 50 of about 3,045 (230)

High Imperceptible Data Hiding Method Based on Combination Theory for AMBTC Compressed Images

open access: yesApplied Sciences, 2023
The rapid development of digital multimedia has resulted in a massive storm of large-scale data. The data compression method reduces data size and lowers transmission costs.
Kurnia Anggriani   +3 more
doaj   +1 more source

A reversible watermarking system for medical color images: balancing capacity, imperceptibility, and robustness / [PDF]

open access: yes, 2021
The authenticity and integrity of medical images in telemedicine has to be protected. Robust reversible watermarking (RRW) algorithms provide copyright protection and the original images can be recovered at the receiver’s end.
Mohammed, Mazin Abed,   +9 more
core   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

open access: yesAdvanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu   +6 more
wiley   +1 more source

Digital image steganography and steganalysis: A journey of the past three decades

open access: yesOpen Computer Science, 2020
Steganography is the science and art of covert communication. Conversely, steganalysis is the study of uncovering the steganographic process. The evolution of steganography has been paralleled by the development of steganalysis.
Sahu Aditya Kumar, Sahu Monalisa
doaj   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

open access: yesAdvanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye   +3 more
wiley   +1 more source

Adaptive scaling factors based on the impact of selected DCT coefficients for image watermarking

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
Image watermarking technique aims at high imperceptibility of the embedded watermark with minimal distortion in the watermarked images. In frequency-domain, block-based Discrete Cosine Transform (DCT) is a popular method which can be improved by ...
Dhani Ariatmanto, Ferda Ernawan
doaj   +1 more source

Trends of the imperceptibility to the texture feature for the Lena and Sails images.

open access: yes, 2017
Trends of the imperceptibility to the texture feature for the Lena and Sails images.
Yazan Aljeroudi (3746554)   +4 more
core   +1 more source

Adaptor: Improving the Robustness and Imperceptibility of Watermarking by the Adaptive Strength Factor

open access: yes, 2023
In watermarking, the watermark embedding strength is crucial, and the introduction of the strength factor can adjust the trade-off between the quality of the encoded image and the accuracy of the recovered message, thus enabling good imperceptibility and
Wu, Yufeng   +5 more
core   +1 more source

Translational Barriers and AI‐Driven Challenges of Microfluidics‐Enabled Wearables and Implantable Systems in Personalized Medicine

open access: yesAdvanced Science, EarlyView.
An integrative review of microfluidics‐enabled wearables and implantable systems reveals a single‐track translation pipeline, bridging functional biomaterials with clinical utility. Dynamic feedback loops driven by artificial intelligence advance diagnostics toward personalized closed‐loop theranostics.
Ke Huang   +3 more
wiley   +1 more source

Cavity‐Enhanced Eye‐Readable Detection of 0.1% H2 via Active Modulation of Charge‐Transfer Plasmons

open access: yesAdvanced Science, EarlyView.
A cavity‐structured nanoparticle sensor is developed for highly sensitive, eye‐readable hydrogen detection. Its excellent colorimetric response arises from a hydrogen‐induced charge‐transfer mechanism: reduction of the dielectric oxide shell in H2 triggers a transition from the plasmonic gap mode to the charge‐transfer plasmon mode.
Xuemin Zhang   +9 more
wiley   +1 more source

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