74 Hits in 10.2 sec

Impact of spatial sampling frequency offset and motion blur on optical wireless systems using spatial OFDM

M. Rubaiyat H. Mondal
2016 EURASIP Journal on Wireless Communications and Networking  
In this paper, for the first time, the effects of SSFO and APSF on a spatial OFDM based pixelated system are investigated.  ...  Two forms of spatial OFDM, spatial asymmetrically clipped optical OFDM (SACO-OFDM) and spatial dc-biased optical OFDM (SDCO-OFDM), have been considered in the literature of pixelated communication.  ...  Conclusions This paper shows that SSFO and motion blur can impair the BER performance of spatial OFDM based communication systems.  ... 
doi:10.1186/s13638-016-0741-y fatcat:tmt2ay3a45gbhbj7ac6bib3ypy

A Survey on Barcode Generation and Modulation Techniques

2015 International Journal of Science and Research (IJSR)  
In this new approach, within neighboring pixels of an LCD over adjacent blur, and light leakage, there is used the orthogonal frequency-division multiplexing (OFDM) modulation together with differential  ...  In a typical setup, through a images series on the LCD there can be transferred any file on a cell phone to a second cell phone through the camera of the second cell phone which are then captured and decoded  ...  images which results in distortion of motion blur.  ... 
doi:10.21275/v4i11.nov151624 fatcat:wsnq6h4cezeobdi2qap6f3mrla

A Review on Various Barcode Generation Techniques

Ninad Bandsode, Abhishek Mukhedkar, Tousif Tamboli, Dhanshree Holkar, Prof. Amit Zore
2016 IJARCCE  
The comparative study of the existing systems is analysed in this paper.  ...  But the major drawback of the existing barcodes is that the amount of data that can be encoded into barcodes is very small due to which becomes very difficult to encode larger data into these barcodes.  ...  images which results in distortion of motion blur.  ... 
doi:10.17148/ijarcce.2016.512111 fatcat:utx6imzgwrellnpqtj3osqv5wu

Capacity of screen–camera communications under perspective distortions

Ashwin Ashok, Shubham Jain, Marco Gruteser, Narayan Mandayam, Wenjia Yuan, Kristin Dana
2015 Pervasive and Mobile Computing  
In this paper, we create a model of this communication system to allow predicting the capacity based on receiver perspective (distance and angle to the transmitter).  ...  Such communications could be particularly attractive in pervasive camera based applications, where such camera communications can reuse the existing camera hardware and also leverage from the large pixel  ...  Acknowledgments We thank all the anonymous reviewers and the editor of PMC journal for their valuable suggestions and comments.  ... 
doi:10.1016/j.pmcj.2014.11.003 fatcat:rr7m7t2ocrbanfsazg3zdv2guu

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

Nasir Saeed, Shuaishuai Guo, Ki-Hong Park, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini
2019 Physical Communication  
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  ...  article presents the literature on OCC based localization, navigation, motion capture, and intelligent transportation Figure 1: Organization of the main body of the survey paper. systems.  ...  calibration of the camera in optical motion capture systems.  ... 
doi:10.1016/j.phycom.2019.100900 fatcat:fo3hi3jfbbaoln3kvxknaxm6ym

Optical Camera Communications: Survey, Use Cases, Challenges, and Future Trends [article]

Nasir Saeed, Shuaishuai Guo, Ki-Hong Park, Tareq Y. Al-Naffouri, Mohamed-Slim Alouini
2019 arXiv   pre-print
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  ...  on OCC based localization, navigation, and motion capture.  ...  OCC-based Motion Capture The As this survey is focused on OCC, we will restrict our discussion to the optical systems.  ... 
arXiv:1812.01259v3 fatcat:uawjdppzhjcktpcvniad5xf6fm

Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges

Parth H. Pathak, Xiaotao Feng, Pengfei Hu, Prasant Mohapatra
2015 IEEE Communications Surveys and Tutorials  
Based on the review, Section 7 outlines various challenges that need further research in order to build high-capacity, mobile VLC networks.  ...  Compared to [11] and [12] where authors surveyed freespace communication along with other forms of optical wireless communications, the primary focus of this survey is narrower and more detailed towards  ...  The result of blurring is outof-focus images where some pixels are blended together.  ... 
doi:10.1109/comst.2015.2476474 fatcat:bjxca4ktq5hrvneh2ynvnetyiq


Kensei Jo, Mohit Gupta, Shree K. Nayar
2016 ACM Transactions on Graphics  
We present DisCo, a novel display-camera communication system. DisCo enables displays and cameras to communicate with each other while also displaying and capturing images for human consumption.  ...  The proposed system performs robustly in challenging real-world situations such as occlusion, variable display size, defocus blur, perspective distortion, and camera rotation.  ...  Shree Nayar received a letter of appreciation with a prize from Sony Corporation for his contributions to research and education.  ... 
doi:10.1145/2896818 fatcat:jl7vlkpxvnezrdn4dkv66y4mn4

Performance Analysis and Improvement of Optical Camera Communication

Moh. Khalid Hasan, Mostafa Zaman Chowdhury, Md. Shahjalal, Van Thang Nguyen, Yeong Min Jang
2018 Applied Sciences  
OCC has attracted a lot of research interest in the area of mobile optical wireless communication due to the popularity of smartphones with embedded cameras.  ...  The paper also provides a short survey of modulation schemes used in OCC on the basis of the achieved data rate, communication distance, and possible application scenarios.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app8122527 fatcat:siafqdolwjdjtcfyzenxbq567m

Table of Contents

2021 IEEE Transactions on Vehicular Technology  
Kim Modulated Motion Blur-Based Vehicle Body Velocity and Pose Estimation Using an Optical Image Modulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ...  Kaddoum Effective Capacity Analysis of HARQ-Enabled D2D Communication in Multi-Tier Cellular Networks . . . . . . . . . . . . . . . .  ... 
doi:10.1109/tvt.2021.3108593 fatcat:feewwd6epzgjvg7v3g3dpmxopa

Optical Camera Communications: Principles, Modulations, Potential and Challenges

Willy Anugrah Cahyadi, Yeon Ho Chung, Zabih Ghassemlooy, Navid Bani Hassan
2020 Electronics  
Optical wireless communications (OWC) are emerging as cost-effective and practical solutions to the congested radio frequency-based wireless technologies.  ...  As part of OWC, optical camera communications (OCC) have become very attractive, considering recent developments in cameras and the use of fitted cameras in smart devices.  ...  OCC Optical camera communications OFDM Orthogonal frequency division multiplexing OLED Organic light-emitting diode OOK On-off Keying OWC Optical wireless communications PD Photodiode/photodetector PHY  ... 
doi:10.3390/electronics9091339 fatcat:nsv5re2tanchvbzzis3jnugeva


Wenjun Hu, Jingshu Mao, Zihui Huang, Yiqing Xue, Junfeng She, Kaigui Bian, Guobin Shen
2014 Proceedings of the 20th annual international conference on Mobile computing and networking - MobiCom '14  
Existing code designs for display-camera based visual communication all have an all-or-nothing behavior, i.e., they assume the entire code must be decoded.  ...  In this paper, we borrow the notion of hierarchical modulation from traditional RF communication, and design Strata, a layered coding scheme for visual communication.  ...  Screen-camera based VLC systems. Several screencamera based systems employ one-way video streaming for information transmission.  ... 
doi:10.1145/2639108.2639132 dblp:conf/mobicom/HuMHXSBS14 fatcat:p4h63lzcn5bspoky36o3dekv64

Paper Titles

2019 2019 IEEE 8th Global Conference on Consumer Electronics (GCCE)  
Kinects Motion History and Shape Orientation Based Human Action Analysis Motion Sensing Eyewear for Daily Healthcare Monitoring MQTT-driven Remote Temperature Monitoring System for IoT-based Smart Homes  ...  N O P Q R S T U V W Leaves Disease and Damage Rate Classification Based on Features LED Lighting Arrangement for Spatially Parallel Signal Transmission in Visible Light Communication Low-Complexity  ... 
doi:10.1109/gcce46687.2019.9015409 fatcat:6k3r6jixrvglrkrkzek636gb54

Two-dimensional barcodes for mobile phones

Sarah Lyons, Frank R. Kschischang
2010 2010 25th Biennial Symposium on Communications  
As a result, a new barcode was designed to exploit the low-pass characteristic of a camera phone channel and is presented as a means of facilitating wireless optical communication with mobile phones.  ...  An outer Accumulate-Repeat-Accumulate code is employed, followed by an inner Reed Muller code with a rate varying according to spatial frequency.  ...  Diffraction Fourier Optics is based on the plane wave spectrum representation of optical fields, which is analogous to Fourier analysis of electrical signals.  ... 
doi:10.1109/bsc.2010.5472949 fatcat:zevywgk7ajg4rex34ulmadriri

2013 Index IEEE Signal Processing Letters Vol. 20

2013 IEEE Signal Processing Letters  
The primary entry includes the coauthors' names, the title of the paper or other item, and its location, specified by the publication abbreviation, year, month, and inclusive pagination.  ...  Salvati, D., +, LSP May 2013 507-510 An Optimal Blind Temporal Motion Blur Deconvolution Filter.  ...  -H., +, LSP May 2013 503-506 Deconvolution An Optimal Blind Temporal Motion Blur Deconvolution Filter.  ... 
doi:10.1109/lsp.2013.2291126 fatcat:pe3e4vel6bhjze7qeapf7eml5e
« Previous Showing results 1 — 15 out of 74 results