21 papers · ranked by Valyu relevance
Kuo-Chien Chou, Ran-Zan Wang, Ray-I Chang, Chia-Hui Wang + 1 more
'Yu-Hsin Hung'] A novel dual-message QR code is proposed for carrying two individual messages that can be read by standard QR code readers: one from a close range and the other from a large distance. By exploring the module value determining the rule of typical QR code readers, we designed two-state module blocks that…
Ladislav Karrach, Elena Pivarčiová, Pavol Božek
QR (quick response) Codes are one of the most popular types of two-dimensional (2D) matrix codes currently used in a wide variety of fields. Two-dimensional matrix codes, compared to 1D bar codes, can encode significantly more data in the same area. We have compared algorithms capable of localizing multiple QR Codes in…
Przemysław Skurowski, Karolina Nurzyńska, Magdalena Pawlyta, Krzysztof A. Cyran + 1 more
'Krzysztof A. Cyran' 'Alessandro Bevilacqua'] For the interacting with real world, augmented reality devices need lightweight yet reliable methods for recognition and identification of physical objects. In that regard, promising possibilities are offered by supporting computer vision with 2D barcode tags. These tags…
Hualong Ye, Tongxu Xu
Usually, the landing area of the drone is presented with QR code images, so it is crucial to ensure the information security of the landing area and prevent it from being occupied by other users. This paper proposes a double camouflage encryption method of QR code based on UAV landing scenario. For the QR code image…
Hao Su, Jianwei Niu, Xuefeng Liu, Qingfeng Li + 3 more
With the ubiquity of smartphones, the Quick Response (QR) code has become one of the most-used types of two-dimensional codes, and has been popularly applied in many scenarios including social networks, mobile payments, and advertisements. Traditional QR codes are matrix codes consisting of black-and-white squares…
Mingliang Xu, Qingfeng Li, Jianwei Niu, Xiting Liu + 3 more
'Pei Lv' 'Bing Zhou'] Abstract—QR codes are usually scanned in different environments, so they must be robust to variations in illumination, scale, coverage, and camera angles. Aesthetic QR codes improve the visual quality, but subtle changes in their appearance may cause scanning failure. In this paper, a new method…
Guangyang Wu, Xiaohong Liu, Jun Jia, Xuehao Cui + 1 more
Text-Guided QR Code Generation Authors: ['Guangyang Wu' 'Xiaohong Liu' 'Jun Jia' 'Xuehao Cui' 'Guangtao Zhai'] In the digital era, QR codes serve as a linchpin connecting virtual and physical realms. Their pervasive integration across various applications highlights the demand for aesthetically pleasing codes without…
Alexei Tikhonov
—Due to the widespread adoption of the smart mobile devices, QR codes have become one of the most-known types of 2D codes around the world. However, the data capacity properties of modern QR codes are still not perfect. To address this issue, in this paper, we propose a novel approach to make double-sided QR codes…
Rebecca Leygonie, Sylvain Lobry, ), Laurent Wendling
Nous souhaitons définir les limites d'un modèle classique de classification fondé sur l'apprentissage profond lorsqu'il est appliqué sur des images abstraites, qui ne représentent pas d'objets identifiables visuellement. Les QR Codes entrent dans cette catégorie d'images abstraites : un bit correspondant à un caractère…
Sara Ignacio-Cerrato, David Pacios, José Miguel Ezquerro Rodriguez, José Luis Vázquez-Poletti + 4 more
'José Luis Vázquez-Poletti' 'Nikolaos Schetakis' 'Konstantinos Stavrakakis' 'Alessio Di Iorio' 'María Estefanía Avilés Mariño'] This paper introduces a novel approach for encoding information in PDF documents or similar files. The proposed encoding involves a dual-step method: firstly, the information is encoded in…
Nitol Saha, Md Masruk Aulia, Md. Mostafizur Rahman, Mohammed Shafiul Alam Khan
Manufacturing Authors: ['Nitol Saha' 'Md Masruk Aulia' 'Md. Mostafizur Rahman' 'Mohammed Shafiul Alam Khan'] The pharmaceutical manufacturing faces critical challenges due to the global threat of counterfeit drugs. This paper proposes a new approach of protected QR codes to secure unique product information for…
Tianyu Wang, Hong Zheng, Changhui You, Jianping Ju + 1 more
'Naveen Chilamkurti'] This paper designs a texture-hidden QR code to prevent the illegal copying of a QR code due to its lack of anti-counterfeiting ability. Combining random texture patterns and a refined QR code, the code is not only capable of regular coding but also has a strong anti-copying capability. Based on…
Cristian Hernandez, Elham Aslankoohi, Pavel Frolikov, Sri Kurniawan + 1 more
With the growing number of multicampus interdisciplinary projects in academic institutions, there is an increasing need for tracking systems that make device and sample data and associated results instantly accessible to all collaborators involved. This need has become particularly salient with the COVID pandemic and…
Mercan Topkara, Thomas Erickson, Umut Topkara, Chandrasekhar Narayanaswami
'Chandrasekhar Narayanaswami'] Quick response codes – 2D patterns that can be scanned to access online resources – are being used in a variety of industrial and consumer applications. However, it is problematic to use multiple QR codes in close proximity: scans can fail or result in access to the wrong resource. While…
Yeongjae Choi, Hyung Jong Bae, Amos C. Lee, Hansol Choi + 9 more
DNA-based data storage has attracted attention because of its higher physical density of the data and longer retention time than those of conventional digital data storage^1–7^. However, previous DNA-based data storage lacked index features and the data quality of storage after a single access is not preserved…
Jordan C. Thompson, James H. Griffin, Renée Link
Multimedia approaches, including short instructional videos, are complementary to traditional modes of instruction such as in-person lecture and written procedures. We describe the creation and implementation of Quick Reference (QR) instructional videos in an undergraduate organic chemistry laboratory (OCL) setting for…
James Hooper, Darshita Budhadev, Dario Fernandez Ainaga Ainaga, Nicole Hondow + 2 more
Multivalent lectin-glycan interactions (MLGIs) are widespread and vital for biology, and also hold the key to many therapeutic applications. However, the underlying structural and biophysical mechanisms for many MLGIs remain poorly understood, limiting our ability to design glycoconjugates that can potently target…
Robinson Vidva, Mir Abbas Raza, Jaswant Prabhakaran, Ayesha Sheikh + 9 more
Management of research-animal colonies is vital for lab productivity in preclinical research. Labs often rely on inefficient paper-based or spreadsheet-based methods to manage animal colonies. Dedicated software-based solutions are generally expensive and many lack remote access. Currently available open-source…
Yang Zhou, Hao Yu, Qiye Li, Rongqin Ke + 1 more
The emerging in situ RNA sequencing technologies which can capture and amplify RNA within the original tissues provides efficient solution for producing spatial expression map from dozens to thousands of genes. Most of in situ RNA-seq strategies developed recently infer the expression patterns based on the fluorescence…
Björn Harink, Huy Nguyen, Kurt Thorn, Polly Fordyce
Multiplexed bioassays, in which multiple analytes of interest are probed in parallel within a single small volume, have greatly accelerated the pace of biological discovery. Bead-based multiplexed bioassays have many technical advantages, including near solution-phase kinetics, small sample volume requirements, many…
Jonathan A. White, Chuqi Lu, Lincoln Ombelets, Long Cai
Difficulty in resolving spatially overlapping barcodes is a major bottleneck for imaging-based spatial genomics methods. Here, we present an approach for untangling overlapping barcodes by using strong encoding and global optimization to reduce spurious solutions resulting from recombinations of barcodes. We…