Results 41 to 50 of about 13,406,179 (238)

Secure image transmission through LTE wireless communications systems

EURASIP Journal on Image and Video Processing
Secure transmission of images over wireless communications systems can be done using RSA, the most known and efficient cryptographic algorithm, and OFDMA, the most preferred signal processing choice in wireless communications.
Farouk Abduh Kamil Al-Fahaidy, Radwan AL-Bouthigy, Mohammad Yahya H. Al-Shamri, Safwan Abdulkareem   +3 more
doaj   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

Advanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding, Limeng Song, Wei Li, Jiangtao Hao, Xuewen Jiang, Mengru Li, Xinglai Yuan, Gang Wang, Yanqiu Zhu, Mi Tian, Hailong Wang, Hongxia Li, Biao Zhao, Rui Zhang, Bingbing Fan   +14 more
wiley   +1 more source

Controlling Joint Optimization of Wireless Video Transmission: the PHOENIX Basic Demonstration Platform

, 2005
A global approach for realistic network-aware joint source and channel system optimization for wireless video transmission is described in this paper. After a description of the information to be exchanged among the system component blocks, the concept ...
Jeney, G., Jeney, Gabor, MARTINI, MARIA GIUSEPPINA, G. Panza, G. Feher, Huusko, J., Ng, Soon X., Lamy-Bergot, C., S. X. Ng, Feher, G., Lamy-Bergot, Catherine, Panza, Gianmarco, Martini, M. G., Martini, Maria G., J. Huusko, G. Jeney, Chiani, M., Panza, G., C. Lamy Bergot, Ng, S. X., Chiani, Marco, Feher, Gabor, Mazzotti, Matteo, Mazzotti, M., Huusko, Jyrki; id_orcid, Huusko, Jyrki   +25 more
core   +1 more source

Aligning security and energy-efficiency using change detection and partial encryption for wireless camera networks

Engineering Science and Technology, an International Journal
Wireless camera networks (WCNs) have seen widespread deployment in recent years, leading to an upsurge in monitoring and surveillance systems aimed at detecting foreign objects and changes within remote environments.
Osama A. Khashan
doaj   +1 more source

Error Concealment using Data Hiding in Wireless Image Transmission

Telfor Journal, 2016
The transmission of image/video over unreliable medium like wireless networks generally results in receiving a damaged image/video. In this paper, a novel image error concealment scheme based on the idea of data hiding and Set Partitioning In ...
A. Akbari, H. Danyali, M. Trocan, B. Granado   +3 more
doaj   +1 more source

An Adaptive Inhibitory WSe2 Transistor for Retinomorphic In‐Sensor Image Processing

Advanced Functional Materials, EarlyView.
Conventional retinomorphic devices typically require deliberate gate‐bias tuning for each illumination condition. In this paper, we demonstrate an adaptive inhibitory WSe2 transistor that uses photo‐induced regime shift between the subthreshold and accumulation modes to achieve decision‐free, intensity‐adaptive image processing within a single pixel ...
Juhwan Baek, Junhwa Oh, Hyeonjung Kim, Minsik Park, Haein Cho, Jin Young Park, Hyeonchang Son, Taeyun Kim, Sung‐Un An, Yamin Zhang, Hyeon‐Jin Shin, Seyong Oh, Dong‐Ho Kang   +12 more
wiley   +1 more source

Optical generation and wireless transmission of 60 GHz OOK signals using gain switched laser [PDF]

, 2010
We present a novel, simple and cost effective system for optical millimeter-wave generation and transmission of 3 Gbps data based on gain switching.
Anandarajah, Prince M., Barry, Liam P., Shams, Haymen, Perry, Philip   +3 more
core   +2 more sources

Lightweight and Adaptive Deep Coding for Wireless Image Transmission in Semantic Communication

IEEE Access
Currently, deep learning-based joint source channel coding (JSCC) methods have achieved significant progress in enabling semantic communication. However, existing methods of this type often fall short of meeting the new demands in terms of model ...
Youming Sun, Jiafeng Wang, Lile Wei, Haiqiang Chen, Shuping Dang, Xiangcheng Li   +5 more
doaj   +1 more source

Sacrificial‐Layer‐Assisted Heat‐Affected‐Zone Suppression in Laser Patterning of PET for High‐Performance Flexible Devices

Advanced Functional Materials, EarlyView.
A removable sacrificial polymer layer engineers the thermal boundary condition during nanosecond laser ablation of PET, suppressing heat‐affected‐zone formation without relying on costly ultrafast lasers. This strategy enables deep, high‐aspect‐ratio trenches with no detectable heat‐affected zone, templating silver‐filled mesh electrodes with record ...
Mehdi Zarei, Mirza Sahaluddin, Mostafa Bedewy, Paul W. Leu   +3 more
wiley   +1 more source

Design of Wireless Network Interface of Mine-used Camera Based on AR2524 Chip

Gong-kuang zidonghua, 2011
In view of demand that some mine field is unconvenient for cable laying and need video transmission by wireless, wireless network interface of camera based on AR2524 chip was designed on platform of network camera.
LIU Dong, WANG Xiang-ju, YU Jing-jing
doaj