Results 131 to 140 of about 3,418 (298)

MULTILEVEL REVERSIBLE DATA HIDING USING MODIFICATION OF PREDICTION ERRORS [PDF]

open access: yes, 2014
Histogram shifting is a popular reversible data hiding technique where image distortion is low. However, it is limited by smaller hiding capacity. In this paper, a high payload scheme is proposed for a histogram shifting reversible data hiding which is ...
Chen, J.   +4 more
core  

Shaping Carbon Nitrides for Advanced Macrostructures

open access: yesAdvanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Bidirectional Process Prediction in the Laser‐Induced‐Graphene Production Using Blackbox Deep Learning

open access: yesAdvanced Materials Technologies, EarlyView.
This study shows that a lightweight blackbox neural network provides a practical, cost‐effective solution for bidirectional process prediction in laser‐induced graphene (LIG) fabrication. Achieving high predictive performance with minimal overhead, the approach democratizes machine learning (ML) for resource‐limited environments.
Maxim Polomoshnov   +3 more
wiley   +1 more source

Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale

open access: yesAdvanced Optical Materials, EarlyView.
Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo   +13 more
wiley   +1 more source

HIGH-PERFORMANCE EMBEDDING IN DUAL IMAGES BASED ON PIXEL VALUE ORDERING METHOD

open access: yesTạp chí Khoa học
Reversible data hiding (RDH) not only protects information but also extends its applications across various fields. This paper improves the Pixel Value Ordering (PVO) algorithm to enhance embedding capacity in dual images.
Cao Thị Luyen, Pham Minh Thai
doaj   +1 more source

A Wavelet-Based Reversible Data Hiding Method [PDF]

open access: yes, 2014
資訊隱藏是將機密資訊藏入數位資料內,由於資訊藏入後並不改變數位資料的特性,使得不法者無法察覺有訊息藏在其中。但傳統的資訊隱藏在藏入資訊後,通常是不可回復的。然而在某些應用上雖然只是輕微的破壞但卻是不被允許的。如為能確保診斷的正確性,醫學影像一般是不希望遭受到破壞;另可用於司法上當作證據之影像,為能使其具有法律上的效用,也不允許其遭到更改;其他如衛星拍攝的影像、軍事用途影像等,也經常有不允許失真的需求。在過去十幾年間,已經有許多可還原的方法被提出來。不過,這些方法都遭遇了在藏量和品質之間取捨的問題 ...
Chen, Wen-Tang, 陳文堂
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

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