Results 81 to 90 of about 3,834,565 (106)

Towards Optical Camera Communications Using a Shape-tailored Illuminating Optical Fiber

, 2022
We have recently presented a novel concept of optical camera communications (OCC) based on illuminating optical fibers (IOF) as transmitter (Tx). In this paper, we further investigate this concept of IOF-based OCC system by replacing a straight IOF by an
Matěj Komanec, Shivani Rajendra Teli, Zabih Ghassemlooy   +2 more
exaly   +2 more sources

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Wide Field-of-View (FOV) Light-Diffusing Fiber Optical Transmitter for Rolling Shutter based Optical Camera Communication (OCC)

Optical Fiber Communication Conference (OFC) 2022, 2022
We propose a wide field-of-view (FOV) light-diffusing-fiber (LDF) transmitter optical-camera-communication (OCC). Pixel-row-per-bit-neural-network (PRPB-NN) is employed for rolling-shutter-pattern decoding. PRPB-NN provides efficient decoding at 360o around LDF circumference and 160o Rx rotation-angle at 2100-bit/s.
Deng-Cheng Tsai, Yun-Han Chang, Yang Liu 0194, Chi-Wai Chow, Yun-Shen Lin, Chien-Hung Yeh   +5 more
openaire   +2 more sources

Optical camera communications: Survey, use cases, challenges, and future trends [PDF]

Physical Communication, 2019
Recently, a camera or an image sensor receiver based optical wireless communications (OWC) techniques have attracted particular interest in areas such as the internet of things, indoor localization, motion capture, and intelligent transportation systems.
Tareq Al-Naffouri, Nasir Saeed, Ki-Hong Park   +2 more
exaly   +2 more sources

Using Pixel-per-bit Neural Network for Two Rolling Shutter Patterns Decoding in Optical Camera Communication (OCC)

2021 30th Wireless and Optical Communications Conference (WOCC), 2021
Optical wireless communication (OWC) has received increasing attention recently. One application of OWC uses image sensor as optical receiver, which is known as optical camera communication (OCC). Rolling shutter mode in OCC allows data rate higher than the camera frame-rate operation.
Deng-Cheng Tsai, Yun-Shen Lin, Yun-Han Chang, Li-Sheng Hsu, Chi-Wai Chow, Yang Liu 0194, Chien-Hung Yeh, Kun-Hsien Lin   +7 more
openaire   +1 more source

A Simplified Model for the Rolling Shutter Based Camera in Optical Camera Communications [PDF]

, 2019
A simplified model of the camera for optical camera communications (OCC) based on the rolling shutter effect is proposed and experimentally verified. In OCC, the key parameters are the exposure time, which is proportional to the DC gain and inversely ...
Andrew Burton, Navid Bani Hassan, Zabih Ghassemlooy   +2 more
exaly   +2 more sources

Z-Score Averaging Neural Network and Background Content Removal for High Performance Rolling Shutter based Optical Camera Communication (OCC)

Optical Fiber Communication Conference (OFC) 2021, 2021
We propose and demonstrate using Z-score averaging neural-network (Z-NN) and background-content-removal (BCR) to mitigate the inter-symbol-interference (ISI) in camera-communication (OCC). 950-bit/s over 3-m free-space transmission is achieved.
Yun-Shen Lin, Yang Liu 0194, Chi-Wai Chow, Yun-Han Chang, Dong-Chang Lin, Shao-Hua Song, Ke-Ling Hsu, Chien-Hung Yeh   +7 more
openaire   +2 more sources

Display Light Panel and Rolling Shutter Image Sensor Based Optical Camera Communication (OCC) Using Frame-Averaging Background Removal and Neural Network

Journal of Lightwave Technology, 2021
Optical wireless communication (OWC) has emerged as a complementary or alternative technology to the radio-frequency (RF) communication. OWC based on image sensor, which is also called optical camera communication (OCC) has attracted much attention from industrial and academic societies. Here, we discuss several recent OCC technologies.
Chi-Wai Chow, Yang Liu, Chien-Hung Yeh, Yun-Han Chang, Yun-Shen Lin, Ke-Ling Hsu, Xin-Lan Liao, Kun-Hsien Lin   +7 more
openaire   +1 more source

OCC Protocol for connected LEDs in Optical Camera Communication Networks

2018 Tenth International Conference on Ubiquitous and Future Networks (ICUFN), 2018
Nowadays, and Internet of Lights (IoL) can be used to help a variety of lights in home, building, factory, city, and so on. The achievement of wireless communication technologies have brought convenience and amazing services to users. The hybrid use of wireless technologies in a system is not a novel idea, however, in this paper, we introduce the ...
ThanhLuan Vu, Minh Duc Thieu, Nguyen Van Thang, Yeong Min Jang   +3 more
openaire   +2 more sources

Survey of indoor optical camera communication (OCC) systems for the Internet of lights

2017 International Conference on Information and Communication Technology Convergence (ICTC), 2017
In this paper, we propose the architecture and schemes of optical camera communication (OCC) system for the internet of lights (IoL) comprising an attentive indoor environment in which rolling-shutter cameras (including smartphone cameras) are used to receive data from light sources.
ThanhLuan Vu, Trang Nguyen, Chun Soo Kim, Eun Bi Sin, Jeonghwa Jeong, Yeong Min Jang   +5 more
openaire   +1 more source

An indoor positioning method in a concert hall using optical camera communication (OCC) technology

2017 International Conference on Information and Communication Technology Convergence (ICTC), 2017
Recent smart devices offer technologies that can measure indoor as well as outdoor locations. In the case of outdoor positioning, a global positioning system (GPS) is generally used. There is a limit to the method of using the GPS signal for indoor positioning.
Eunyoung Jeong, Bong-Seok Seo, Namtae Kim, Dongho You, Dong Ho Kim, Ye Hoon Lee   +5 more
openaire   +2 more sources