Results 131 to 140 of about 15,911 (261)

Time Span of an Image Frame Using a CMOS Sensor in Rolling Shutter‐Based Optical Camera Communications

IET Optoelectronics
In this paper, a rolling shutter optical camera communication system is investigated by analysing the internal working principle of a receiver based on complementary metal oxide semiconductor image sensors.
Raul Zamorano‐Illanes, Zabih Ghassemlooy, Xicong Li, Othman Younus, Stanislav Zvánovec, Ismael Soto   +5 more
doaj   +1 more source

Real-Time Patient Indoor Health Monitoring and Location Tracking with Optical Camera Communications on the Internet of Medical Things

Applied Sciences
Optical Camera Communication (OCC) is an emerging technology that has attracted research interest in recent decades. Unlike previous communication technologies, OCC uses visible light as the medium to transmit data from receivers and cameras to receive ...
Herfandi Herfandi, Ones Sanjerico Sitanggang, Muhammad Rangga Aziz Nasution, Huy Nguyen, Yeong Min Jang   +4 more
doaj   +1 more source

CONSULTANCY STATE: Government as (a) Service and the Anti‐politics of Technological Expertise in Indian Cities

International Journal of Urban and Regional Research, EarlyView.
Abstract This article analyses ideas of ‘good governance through technology’ in India that first emerged from the software industry, symbolizing state support for the ‘new middle‐class’ values of liberalized private enterprise. We suggest that the contemporary prominence of consulting firms in government represents a second transformation that embeds ...
Matt Birkinshaw, Sanjay Srivastava
wiley   +1 more source

A Deep Learning-Enhanced MIMO C-OOK Scheme for Optical Camera Communication in Internet of Things Networks

Photonics
Wireless communication systems, which rely on radio frequencies (RFs), are widely utilized in various applications, such as mobile communications, radio frequency identification, marine networks, smart farms, and smart homes.
Duy Thong Nguyen, Trang Nguyen, Minh Duc Thieu, Huy Nguyen   +3 more
doaj   +1 more source

The Coloniality of Data: Police Databases and the Rationalization of Surveillance from Colonial Vietnam to the Modern Carceral State

The British Journal of Sociology, EarlyView.
ABSTRACT Tracing the early adoption of computer gang databases by the Los Angeles County Sheriff's Department and the Los Angeles Police Department in the 1980s to the deployment of computationally‐assisted surveillance during the Vietnam War, this paper uses a genealogical approach to compare surveillance technologies developed across the arc of ...
Christina Hughes
wiley   +1 more source

SDR-Based All-Optical MIMO Wireless Hybrid IoT Sensor Networks

IEEE Access
In this paper, we experimentally demonstrate and analyze the performance of a software-defined radio (SDR)-based all-optical multiple-input multiple-output (MIMO) wireless hybrid communication link for indoor Internet of Things (IoT) sensor networks.
Shivani Rajendra Teli, Carlos Guerra-Yanez, Zabih Ghassemlooy, Stanislav Zvanovec   +3 more
doaj   +1 more source

Decentralized propaganda in the era of digital media: The massive presence of the Chinese state on Douyin

American Journal of Political Science, EarlyView.
Abstract The rise of social media in the digital era poses unprecedented challenges to authoritarian regimes that aim to influence public attitudes and behaviors. To address these challenges, we argue that authoritarian regimes have adopted a decentralized approach to produce and disseminate propaganda on social media.
Yingdan Lu, Jennifer Pan, Xu Xu, Yiqing Xu   +3 more
wiley   +1 more source

3D Character Reconstruction from Hand‐drawn Model Sheets

Computer Graphics Forum, EarlyView.
Abstract Hand‐drawn model sheets are widely used in character design to define 3D shape and appearance through sparse multi‐view drawings. Reconstructing 3D characters from such sparse inputs has traditionally been challenging due to insufficient visual information.
Hyejeong Yoon, Wonjong Jang, Yoonha Hwang, Seungyong Lee   +3 more
wiley   +1 more source

Millimeter-precision positioning for wide-angle indoor area enabled by metalens-integrated camera

Nanophotonics
Due to signal shielding caused by building structures, conventional mature positioning technologies such as the Global Positioning System (GPS) are only suitable for outdoor navigation and detection.
Li Muyang, Wu Yue, Li Haobai, Zhou Zi-Wen, Zhang Yanxiang, Yuan Zhongyi, Zhang Zaichen, Chen Ji   +7 more
doaj   +1 more source

Self localization and mapping using optical and thermal imagery [PDF]

, 2011
Given a mobile robot starting from an unknown position in an unknown environment, with the task of explores the surroundings, it has to be able to build an environmental map and localize itself inside that map.
Magnabosco, Marina
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