Review on quick response codes in the field of information security (Analysis of various imperceptibility characteristics on grayscale and binary QR code

2014 ◽  
Author(s):  
V. Ramya ◽  
G. Gopinath
Keyword(s):  
Information Security ◽  
Security Analysis ◽  
Qr Code ◽  
Quick Response

IMPLEMENTASI QUICK RESPONSE (QR) CODE PADA APLIKASI VALIDASI DOKUMEN MENGGUNAKAN PERANCANGAN UNIFIED MODELLING LANGUAGE (UML)

2016 ◽  
Vol 10 (1) ◽  
Author(s):  
Novan Adi Musthofa, Siti Mutrofin, Mohamad Ali Murtadho
Keyword(s):  
Qr Code ◽  
Quick Response ◽  
Uniform Resource Locator ◽  
Modelling Language ◽  
Web Browser ◽  
Unified Modelling Language

Dengan berkembangnya teknologi informasi, sering sekali terjadi penyelewengan dokumen terutama pada dokumen-dokumen cetak. Dokumen merupakan salah satu data yang sangat penting, karena dokumen merupakan sumber informasi yang diperlukan oleh suatu instansi, organisasi, negara, maupun individu. Tanpa dokumen, maka seseorang akan kehilangan data-data yang diperlukan untuk kegiatan di masa yang akan datang. Pemalsuan dokumen sangat mudah dilakukan dengan cara meniru bentuk serta isi dari suatu dokumen. Penelitian sebelumnya pernah dilakukan, namun dalam objek yang berbeda. Pemalsuan dokumen dapat diatasi dengan menggunakan Quick Response (QR) Code. QR Code mampu menyimpan semua jenis data, seperti data angka/numerik, alphanumeric, biner, kanji/kana. Selain itu QR Code memiliki tampilan yang lebih kecil daripada barcode. Untuk dapat membuat QR Code suatu dokumen maka dibuatlah sebuah aplikasi yaitu aplikasi Validasi Dokumen. Aplikasi Validasi Dokumen dirancang dengan menggunakan metode waterfall serta menggunakan perancangan Unified Modelling Language (UML). Bahasa pemrograman yang digunakan yaitu bahasa pemrograman PHP: Hypertext Preprocessor (PHP) dengan database MySQL. Sebelum QR Code dibuat, terlebih dahulu data dokumen dienkripsi dan kemudian dijadikan QR Code. Hasil pemindaian QR Code berupa Uniform Resource Locator (URL) yang mengarah pada data dokumen. Ketika URL dijalankan pada web browser, sistem melakukan deskripsi pada URL, kemudian dicocokkan dengan database, dan selanjutnya ditampilkan ke web browser. Hasil akhir aplikasi Validasi Dokumen berupa QR Code yang digunakan untuk menyimpan URL yang  menunjukkan bahwa dokumen memang benar-banar dokumen yang resmi (bukan ilegal) dari suatu instansi. Pada uji coba penelitian ini juga dilakukan perbandingan kinerja dengan 3 aplikasi yang sejenis, 3 aplikasi pembanding tersebut dipilih karena memiliki hasil visual QR Code yang hampir mirip, namun jika dilakukan scanning memiliki hasil yang berbeda, karena fiturnya juga berbeda. Berdasarkan hasil pengujian dengan 3 pembanding aplikasi yang sejenis, dengan menggunakan aplikasi yang diusulkan dalam penelitian ini, pemalsuan dokumen dapat dihindari dengan menggunakan aplikasi Validasi Dokumen selama tidak ada ikut campur orang dalam (superadmin/admin) dalam melakukan praktik pemalsuan dokumen. Pada penelitian selanjutnya dapat dilakukan perbaikan kelemahan aplikasi ini, yaitu agar tidak menampilkan URL, namun hasil pemindai QR Code, langsung dapat menampilkan detail isi dokumen.

Hospital Informatization in China During the COVID-19 Pandemic: A Cross-Sectional Internet-Based Survey Study (Preprint)

2020 ◽  
Author(s):  
Ke Zeng ◽  
Weiguo Zhu ◽  
Caiyou Wang ◽  
Liyan Zhu
Keyword(s):  
Information Technology ◽  
Information Security ◽  
Medical Information ◽  
Survey Study ◽  
Chinese Government ◽  
Qr Code ◽  
Cross Sectional ◽  
Network Information ◽  
Tertiary Hospitals ◽  
The Impact

BACKGROUND The rapid spread of COVID-19 has created a severe challenge to China’s healthcare system. Hospitals across the country reacted quickly under the leadership of the Chinese government and implemented a range of informatization measures to effectively respond to the COVID-19. OBJECTIVE To understand the impact of the pandemic on the medical business of Chinese hospitals and the difficulties faced by hospital informatization construction. To discuss the application of hospital informatization measures during the COVID-19 pandemic. To summarize the practical experience of hospitals using information technology to fight the pandemic. METHODS Performing a cross-sectional on-line questionnaire survey in Chinese hospitals, of which the participants are invited including hospital information staff, hospital administrators, medical staff, etc. Statistical analyzing the collected data by using SPSS version 24. RESULTS A total of 804 valid questionnaires (88.45%) are collected in this study from 30 provinces in mainland China, of which 731 (90.92%) were filled out by hospital information staff. 473 (58.83%) hospitals are tertiary hospitals while the remaining 331 (41.17%) are secondary hospitals. The majority hospitals (82.46%) had a drop in their business volume during the pandemic and a more substantial drop is found in tertiary hospitals. 70.40% (n=566) of hospitals have upgraded or modified their information systems in response to the epidemic. The proportion of tertiary hospitals that upgraded or modified systems is significantly higher than that of secondary hospitals. Internet hospital consultation (70.52%), pre-check and triage (62.56%), telemedicine (60.32%), health QR code (57.71%), and telecommuting (50.87%) are the most used informatization anti-pandemic measures. There are obvious differences in the application of information measures between tertiary hospitals and secondary hospitals. Among these measures, most of them (41.17%) are aiming at serving patients and most of them (62.38%) are universal which continue to be used after pandemic. The informatization measures are mostly used to control the source of infection (48.19%), such as health QR Code, etc. During the pandemic, the main difficulties faced by the hospital information department are “information construction projects are hindered” (58.96%) and “increased difficulty in ensuring network information security” (58.58%). There are significant differences in this issue between tertiary hospitals and secondary hospitals. The shortcomings of hospital informatization that should be made up for are “shorten patient consultation time and optimize consultation process” (72.51%), “Ensure network information security” (72.14%) and “build internet hospital consultations platform” (59.95%). CONCLUSIONS A significant number of innovative medical information technology have been used and played a significant role in all phases of COVID-19 prevention and control in China. Since the COVID-19 brought many challenges and difficulties for informatization work, hospitals need to constantly improve their own information technology skills to respond to public health emergencies that arise at any moment.

scholarly journals An Anti-Counterfeiting Architecture for Traceability System Based on Modified Two-Level Quick Response Codes

Electronics ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 320
Author(s):  
Shundao Xie ◽  
Hong-Zhou Tan
Keyword(s):  
Product Life Cycle ◽  
Low Cost ◽  
Prototype System ◽  
Qr Code ◽  
Quick Response ◽  
Copy Detection ◽  
Traceability System ◽  
Scanned Image ◽  
Promising Solution ◽  
Product Package

Traceability is considered a promising solution for product safety. However, the data in the traceability system is only a claim rather than a fact. Therefore, the quality and safety of the product cannot be guaranteed since we cannot ensure the authenticity of products (aka counterfeit detection) in the real world. In this paper, we focus on counterfeit detection for the traceability system. The risk of counterfeiting throughout a typical product life cycle in the supply chain is analyzed, and the corresponding requirements for the tags, packages, and traceability system are given to eliminate these risks. Based on the analysis, an anti-counterfeiting architecture for traceability system based on two-level quick response codes (2LQR codes) is proposed, where the problem of counterfeit detection for a product is transformed into the problem of copy detection for the 2LQR code tag. According to the characteristics of the traceability system, the generation progress of the 2LQR code is modified, and there is a corresponding improved algorithm to estimate the actual location of patterns in the scanned image of the modified 2LQR code tag to improve the performance of copy detection. A prototype system based on the proposed architecture is implemented, where the consumers can perform traceability information queries by scanning the 2LQR code on the product package with any QR code reader. They can also scan the 2LQR code with a home-scanner or office-scanner, and send the scanned image to the system to perform counterfeit detection. Compared with other anti-counterfeiting solutions, the proposed architecture has advantages of low cost, generality, and good performance. Therefore, it is a promising solution to replace the existing anti-counterfeiting system.

scholarly journals ART-UP: A Novel Method for Generating Scanning-Robust Aesthetic QR Codes

2021 ◽  
Vol 17 (1) ◽  
pp. 1-23
Author(s):  
Mingliang Xu ◽  
Qingfeng Li ◽  
Jianwei Niu ◽  
Hao Su ◽  
Xiting Liu ◽  
...  
Keyword(s):  
State Of The Art ◽  
Visual Quality ◽  
Qr Code ◽  
Quick Response ◽  
Estimation Model ◽  
Qr Codes ◽  
Excellent Performance ◽  
Novel Method ◽  
Coarse To Fine

Quick response (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 article, a new method to generate scanning-robust aesthetic QR codes is proposed, which is based on a module-based scanning probability estimation model that can effectively balance the tradeoff between visual quality and scanning robustness. Our method locally adjusts the luminance of each module by estimating the probability of successful sampling. The approach adopts the hierarchical, coarse-to-fine strategy to enhance the visual quality of aesthetic QR codes, which sequentially generate the following three codes: a binary aesthetic QR code, a grayscale aesthetic QR code, and the final color aesthetic QR code. Our approach also can be used to create QR codes with different visual styles by adjusting some initialization parameters. User surveys and decoding experiments were adopted for evaluating our method compared with state-of-the-art algorithms, which indicates that the proposed approach has excellent performance in terms of both visual quality and scanning robustness.

scholarly journals Perancangan Aplikasi Validasi Absensi Ujian Akhir Semester Mahasiswa Menggunakan Quick Response (QR) Code

2020 ◽  
Vol 1 (01) ◽  
Author(s):  
Ambar Safaatun ◽  
Ambar Tri Hapsari ◽  
Aswin Fitriansyah
Keyword(s):  
Real Time ◽  
Qr Code ◽  
Quick Response

Tujuan sistem validasi kehadiran mahasiswa dalam ujian akhir semester menggunakan Quick Response (QR) Code adalahmengembangkan sistem validasi kehadiran Mahasiswa pada saat Ujian Akhir Semester (UAS). Dengan menggunakan Quick Response (QR) Code dapat meningkatkan akurasi kehadiran dan mengurangi kecurangan dengan memanfaatkan jasa orang lain untuk mengerjakan ujian dan menyamar sebagai peserta ujian yang sebenarnya dengan menerima imbalan uang (joki). Dan harapan Peneliti juga untuk mempermudah pengawas ujian dalam melakukan validasi kehadiran mahasiswa pada saat Ujian Akhir Semester (UAS). Metode penelitian yang digunakan untuk menganalisis proses validasi kehadiran peserta Ujian Akhir Semester (UAS) ini adalah metode observasi, studi literature dan wawancara. Peneliti juga menggunakan pendekatan struktural dalam menyusun langkah-langkah pengembangan sistem. Setelah peneliti menganalisis masalah yang terjadi pada saat pelaksanaan Ujian Akhir Semester (UAS) di Universitas Terbuka, akhirnya peneliti menarik simpulan dengan adanya sistem ini, masalah pelanggaran tata tertib dalam pelaksanaan Ujian Akhir Semester (UAS) dengan meningkatkan akurasi kehadiran sehingga mengurangi celah kecurangan tersebut. Masalah mahasiswa tidak membawa kartu identitas yang menyulitkan proses validasi peserta ujian pada saat pelaksanaan Ujian Akhir Semester (UAS) teratasi dengan adanya Quick Response (QR) Code serta mempermudah pengawas ujian dalam melakukan validasi kehadiran mahasiswa saat Ujian Akhir Semester (UAS) beserta presensi secara real time

scholarly journals APLIKASI ABSENSI SISWA MENGGUNAKAN QR CODE DENGAN BAHASA PEMROGRAMAN PHP DI SMKIT ZUNURAIN AQILA ZAHRA DI PELINTUNG

2019 ◽  
Vol 11 (1) ◽  
pp. 62
Author(s):  
Nur Rubiati ◽  
Sahara Widya Harahap
Keyword(s):  
Qr Code ◽  
Quick Response ◽  
Response Code ◽  
Database Server ◽  
Quick Response Code

<p><em>SMK Zunurain Aqila Zahra merupakan suatu lembaga pendidikan tingkat menengah yang didirikan oleh Yayasan Aqila Zahra Dumai. Setiap kegiatan yang membutuhkan informasi mengenai peserta</em><em> didik (siswa)</em><em> akan memerlukan absensi. Proses absensi yang masih manual </em><em>yaitu dengan menulis dibuku yang membutuhkan waktu lama dan sering terjadi kecurangan absensi.</em><em> </em><em>Dengan masalah tersebut maka dibuatlah sebuah aplikasi dengan menggunakan </em><em>QR Code (Quick Response Code)</em><em> dan </em><em>berbasis Web. Metode yang digunakan dengan melalui beberapa tahapan seperti pengumpulan data, mengidentifikasi masalah, analisis sitem, perancangan system, pembangunan system,pengujian system, implementasi system. Aplikasi Web ini dibangun menggunakan 3 komponen utama yaitu PHP sebagai bahasa pemrograman, PhpMyAdmin sebagai database server dan Android sebagai aplikasi pembaca QR Code. Dari hasil uji coba dengan menggunakan Smartphone Sony Xperia 3 didukung dengan aplikasi Android yg telah dibangun. </em><em>Dengan adanya a</em><em>plikasi Absensi berbasis Web ini data dapat tersimpan  ke database, siswa tidak perlu menunggu lama untuk absensi dan dapat meminimalisir kecurangan absensi.</em></p><p><em> </em><em></em></p><p>Kata kunci <em>: Absensi Siswa, </em><em>Android,</em><em> </em><em>Aplikasi, </em><em>QR Code, PHP</em><em></em></p>

scholarly journals Implementation for Quick Response Code

2019 ◽  
pp. 249-252
Author(s):  
K. Ravikumar ◽  
R. Geetha
Keyword(s):  
Mobile Devices ◽  
Mobile Phones ◽  
Teaching And Learning ◽  
Qr Code ◽  
Quick Response ◽  
Qr Codes ◽  
Response Code ◽  
Quick Response Code ◽  
The People ◽  
Identity Card

Quick Response (QR) codes are versatile. a chunk of long trilingual text, a connected URL, an automatic SMS message, an identity card or simply regarding any data is embedded into the two-dimensional barcode. as well as moderate equipped mobile devices, QR Codes will connect the users to the data quickly and simply. The operations to retrieve or store QR codes are unbelievably easy and fast, and with mobile devices, build them the best academic tools for teaching and learning. QR codes are all over and most of the people have mobile phones equipped with QR code readers. though QR codes existed for over fifteen years, there arent such a lot of analysis applications during this space.

scholarly journals Animated Two-Dimensional Barcode Generation Using Optimization Algorithms – Redesign of Formulation, Operator, and Quality Evaluation

2009 ◽  
Vol 13 (3) ◽  
pp. 245-254 ◽  
Author(s):  
Satoshi Ono ◽  
◽  
Kensuke Morinaga ◽  
Shigeru Nakayama
Keyword(s):  
Code Generation ◽  
Optimization Problem ◽  
Quality Evaluation ◽  
Qr Code ◽  
Two Dimensional ◽  
Quick Response ◽  
Qr Codes ◽  
Running Head ◽  
Generation Problem ◽  
Font Color

To improve on our previously proposed but problem-plagued innovation for generating animated and illustrated Quick Response (QR) codes, this paper proposes a method which formulates the animated QR code generation problem as an optimization problem rather than as a set of still QR code decoration problems. The proposed method also uses optimization operators designed for this problem and quality evaluation to maintain natural, smooth movement. Experiments demonstrate that the proposed method can generate animated QR codes involve a maximum of eight illustrations moving inside the code which maintaining decoding feasibility and smooth illustration movement.<FONT color="red" size="3">Erratum<br /></FONT> <FONT color="red" size="2">Due to a wrong manipulation during the correction of the proofs of the above paper, the running head title (short title) was incorrect. The correct running head title should have read as "Animated Two–Dimensional Barcode Generation."</FONT>

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