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Robust and Fast Decoding of High-Capacity Color QR Codes for Mobile Applications

Zhibo Yang, Huanle Xu, Jianyuan Deng, Chen Change Loy, Wing Cheong Lau
2018 IEEE Transactions on Image Processing  
Particularly, we further discover a new type of chromatic distortion in high-density color QR codes, cross-module color interference, caused by the high density which also makes the geometric distortion  ...  To evaluate the performance of HiQ, we collect a challenging large-scale color QR code dataset, CUHK-CQRC, which consists of 5390 high-density color QR code samples.  ...  For high-density color QR codes, the colorants in neighboring data modules may spill over and severely distort the color of the central module during print process 1 , see Fig. 1 (c).  ... 
doi:10.1109/tip.2018.2855419 pmid:30028700 fatcat:6ix4jbb325gyzlqwfrzlagx274

Deep Learning in Barcode Recognition: A Systematic Literature Review

Ratapol Wudhikar, Phasit Charoenkwan, Kanokwan Malang
2022 IEEE Access  
The use of deep learning (DL) for barcode recognition and analysis has achieved remarkable success and has attracted great attention in various domains.  ...  Unlike other barcode recognition methods, DL-based approaches can significantly improve the speed and accuracy of both barcode detection and decoding.  ...  To avoid bias and improve the generalization abilities of DL-based barcode recognition methods, we recommend that future research carefully select experimental datasets by focusing on the diversity of  ... 
doi:10.1109/access.2022.3143033 fatcat:53ppj464t5ggdhzwhly2wapqky

Two-dimensional barcodes for mobile phones

Sarah Lyons, Frank R. Kschischang
2010 2010 25th Biennial Symposium on Communications  
An outer Accumulate-Repeat-Accumulate code is employed, followed by an inner Reed Muller code with a rate varying according to spatial frequency.  ...  There are several potential applications for a high data density barcode that can be easily photographed and decoded by mobile phones, but no such symbology currently exists.  ...  QR Versions 1 through 40 progress from 21 × 21 modules to 177 × 177 modules respectively, with a 4 × 4 module increase per version.  ... 
doi:10.1109/bsc.2010.5472949 fatcat:zevywgk7ajg4rex34ulmadriri

Active vision varies across the cardiac cycle [article]

Stella Kunzendorf, Felix Klotzsche, Mert Akbal, Arno Villringer, Sven Ohl, Michael Gaebler
2018 bioRxiv   pre-print
During the encoding period of a visual memory experiment, participants clicked through a set of emotional pictures to memorize them for a later recognition test.  ...  By self-paced key press, they actively prompted the onset of shortly (100-ms) presented pictures.  ...  In addition, measurements of cardiac representations in the brain 2 (e.g., using EEG) would extend our understanding of the central integration and modulation 3 of cardiac signals, for example, in the  ... 
doi:10.1101/283838 fatcat:bvrzonamzvgvbl4lpllrhqydym

Inverse Design for Silicon Photonics: From Iterative Optimization Algorithms to Deep Neural Networks

Simei Mao, Lirong Cheng, Caiyue Zhao, Faisal Nadeem Khan, Qian Li, H. Y. Fu
2021 Applied Sciences  
In case of iterative optimization methods, we discuss them in different scenarios in the sequence of increased degrees of freedom: empirical structure, QR-code like structure and irregular structure.  ...  To make the design process more time-efficient and to improve the device performance to its physical limits, various methods have been proposed over the past few years to manipulate the geometries of silicon  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/app11093822 doaj:9c1834e59b0748888875cf8054a14dfa fatcat:zbvmb7agoffkvczelvc4bb42sa

What'S This?

Paul Stokes, Geneen Stubbs, Nathan Thomas
2011 Zenodo  
The development and evaluation of a location based education enhancement system for use with network connected mobile devices and two-dimensional (QR) codes.  ...  MSc Thesis submitted to University of Glamorgan / Prifysgol Morgannwg Faculty of Advanced Technology  ...  Versions range from version 1-21 modules (squares) by 21 modules-through to version 40-177 modules by 177 modules.  ... 
doi:10.5281/zenodo.52457 fatcat:csudw5ib7bhknhq5uw2l4x2rqu

Efficient DSP and Circuit Architectures for Massive MIMO: State of the Art and Future Directions

Liesbet Van der Perre, Liang Liu, Erik G. Larsson
2018 IEEE Transactions on Signal Processing  
Massive MIMO is a compelling wireless access concept that relies on the use of an excess number of base-station antennas, relative to the number of active terminals.  ...  This technology is a main component of 5G New Radio (NR) and addresses all important requirements of future wireless standards: a great capacity increase, the support of many simultaneous users, and improvement  ...  The authors thank their colleagues and collaborators in the European FP7-MAMMOET project for the nice cooperation that truly progressed Massive MIMO technology.  ... 
doi:10.1109/tsp.2018.2858190 fatcat:tozgqt3ygfavtf4pmpjdwilube

Neuromorphic Systems Design by Matching Inductive Biases to Hardware Constraints

Lorenz K. Muller, Pascal Stark, Bert Jan Offrein, Stefan Abel
2020 Frontiers in Neuroscience  
Our simulation results underline our central conclusions: additional hardware constraints can improve the predictions of a Machine Learning system, and understanding the inductive biases that underlie  ...  Neuromorphic systems are designed with careful consideration of the physical properties of the computational substrate they use.  ...  et al. (2015) or by sparse versions thereof.  ... 
doi:10.3389/fnins.2020.00437 pmid:32547357 pmcid:PMC7270357 fatcat:r7qxurvj7jdddbcux367dumlia

Resting Heart Rate is a Risk Factor for Cardiovascular and Noncardiovascular Mortality: The Chicago Heart Association Detection Project In Industry

P. Greenland, M. L. Daviglus, A. R. Dyer, K. Liu, C.-F. Huang, J. J. Goldberger, J. Stamler
1999 American Journal of Epidemiology  
that influence cardiac structure or function (e.g. stroke volume) and thereby modulate heart rate (since cardiac output = heart rate x stroke volume), or 3) by improving our understanding of the physiologic  ...  These variants may impact clinical care by identifying novel factors that influence pathologic heart rate states, are relevant for cardiac structure and thereby modulate heart rate, or by improving our  ...  A special word of appreciation is directed to dr. C. Newton-Cheh. Dear Chris, I just started my PhD project and already I was part of the international QTGEN collaboration initiated by you.  ... 
doi:10.1093/oxfordjournals.aje.a009901 pmid:10221322 fatcat:ahiukjjf3nbzji2zdmhiikyhoy

Feasibility and Reproducibility of Systolic Right Ventricular Strain Measurement by Speckle-Tracking Echocardiography in Premature Infants

Philip Thaler Levy, Mark R. Holland, Timothy J. Sekarski, Aaron Hamvas, Gautam K. Singh
2013 Journal of the American Society of Echocardiography  
Results-Strain imaging was feasible from 84% of the acquisitions using the methods developed for optimal speckle brightness and frame rate for RV-focused image acquisition.  ...  (born at 28 ± 1 weeks), and (ii) a Study Phase to prospectively test in a separate cohort of 50 premature infants (born at 27 ± 1 weeks) if the methods improved the feasibility and reproducibility of  ...  Supplementary Material Refer to Web version on PubMed Central for supplementary material.  ... 
doi:10.1016/j.echo.2013.06.005 pmid:23880052 pmcid:PMC3800696 fatcat:mwv2sdjl4bf4nkg3pqskjbypei

RIS-Assisted Visible Light Communication Systems: A Tutorial [article]

Sylvester Aboagye and Alain R. Ndjiongue and Telex M. N. Ngatched and Octavia Dobre and H. Vincent Poor
2022 arXiv   pre-print
As part of the implementation, one of the challenges that must be addressed is the skip-zone problem, which occurs when objects obstruct the transmission of signals.  ...  Recent development of the fifth-generation (5G) of cellular networks has led to their deployment worldwide.  ...  Note that all of these versions of OFDM suffer from a high peak-to-average power ratio. The optical version of MIMO (index modulation) has been investigated in order to improve VLC transmission.  ... 
arXiv:2204.07198v1 fatcat:b3cihbfitnd2hm5cu25rokyppu

Speech Recognition by Machine, A Review [article]

M. A. Anusuya, S. K. Katti
2010 arXiv   pre-print
The objective of this review paper is to summarize and compare some of the well known methods used in various stages of speech recognition system and identify research topic and applications which are  ...  After years of research and development the accuracy of automatic speech recognition remains one of the important research challenges (e.g., variations of the context, speakers, and environment).The design  ...  . & Chairman, Dept. of CS & Automation, IISc., Bangalore, for their useful discussions and suggestions during the preparation of this technical paper.  ... 
arXiv:1001.2267v1 fatcat:yvcif2cb2jgkbjcqreid7cxanu

Design of large polyphase filters in the Quadratic Residue Number System

Gian Carlo Cardarilli, Alberto Nannarelli, Yann Oster, Massimo Petricca, Marco Re
2010 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers  
By allowing the user to import modules under three forms, ROCCC not only improve the productivity by supporting code reuse, it also reduces design variability by allowing the use of tested cores in the  ...  Assuming the use of a code ensemble obtained through puncturing of a low-rate mother code, the decoder achieves significantly reduced convergence rates by merging the check node neighbours of the punctured  ... 
doi:10.1109/acssc.2010.5757589 fatcat:ccxnu5owr5fyrcjcqukumerueq

National Conference on Recent Advances in Communication Engineering and Information Technology

2020 International journal for innovative engineering and management research  
We invest much effort to enhance our student's learning experience through the application of ECE technology.  ...  Our philosophy is not only to educate engineers, but also to prepare them for future leadership roles in industry– indeed, many of our alumni are now Directors of Industry, leading their organizations  ...  This design approaches are presented to improve the quality of Pulsed Latches circuits by using their main importance of high performance, low power, and small area.  ... 
doi:10.48047/ijiemr/v08/spe/02 fatcat:woay334irjgebf5bixuc4ng6em

Implementation of Fog computing for reliable E-health applications

Razvan Craciunescu, Albena Mihovska, Mihail Mihaylov, Sofoklis Kyriazakos, Ramjee Prasad, Simona Halunga
2015 2015 49th Asilomar Conference on Signals, Systems and Computers  
In addition, we will improve on the performance of such Coded ALOHA protocols in terms of the resource efficiency.  ...  In this work we explore some of the potential fiber-optic data transmission applications of the nonlinear Fourier transform (NFT), a signal analysis technique introduced by mathematicians and physicists  ...  The relays forward a few bits representing a processed version of the observed signal to the fusion center via high rate link.  ... 
doi:10.1109/acssc.2015.7421170 dblp:conf/acssc/CraciunescuMMKP15 fatcat:qm6mki5z6bcvrfimkmqjyrxaxm
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