• Smart Media Journal
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• v.13 no.6
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• pp.9-15
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• 2024

In recent trends, there has been an increase in 'Qshing' attacks, a hybrid form of phishing that exploits fake QR (Quick Response) codes impersonating government agencies to steal personal and financial information. Particularly, this attack method is characterized by its stealthiness, as victims can be redirected to phishing pages or led to download malicious software simply by scanning a QR code, making it difficult for them to realize they have been targeted. In this paper, we have developed a classification technique utilizing machine learning algorithms to identify the maliciousness of URLs embedded in QR codes, and we have explored ways to integrate this with existing QR code readers. To this end, we constructed a dataset from 128,587 malicious URLs and 428,102 benign URLs, extracting 35 different features such as protocol and parameters, and used AutoML to identify the optimal algorithm and hyperparameters, achieving an accuracy of approximately 87.37%. Following this, we designed the integration of the trained classification model with existing QR code readers to implement a service capable of countering Qshing attacks. In conclusion, our findings confirm that deriving an optimized algorithm for classifying malicious URLs in QR codes and integrating it with existing QR code readers presents a viable solution to combat Qshing attacks.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.439-445
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• 2012

The aim of the work that is presented in this paper is to develop the new prior educational materials which use the field trip and to present educational possibilities. The QR codes were used to develop the prior materials. The developed materials applied to elementary students who attended to filed trips in 2012. This was practically achieved by the use of smartphone which enhance the learning experience of a physical visit by providing personalized information with QR codes. The results demonstrate the technology supported physical field trips provides significantly improved learning outcomes, increases students curiosity. Furthermore the findings of the study demonstrate that the application of the specific emerging technologies could facilitate the development of advanced learning experiences in field trips, increasing at a significant level the learning outcomes and the motivation of the participating students.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.116-117
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• 2017

본 연구에서는 기존의 1차원 코드의 워터마킹이 가지는 많은 정보의 저장이 어렵다는 것을 해결하기 위해 마이크로 QR 코드를 이용한 워터마킹 방법에 대해서 제안한다. 오디오의 비가청성 영역에 국제 표준 녹음 코드(ISRC)를 이용한 오디오 고유의 코드를 마이크로 QR코드화 하여 오디오를 주파수 영역으로 변환한 뒤, 비가청성 영역에 삽입한다. 이를 손실 압축 기법인 AAC로 압축하고 워터마크를 추출함으로써 오디오 워터마킹의 강인성, 비가청성을 확인할 수 있었다.

• Journal of Digital Contents Society
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• v.16 no.2
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• pp.263-274
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• 2015

Jeju're behind in communicating with the public and local population compared to the national registration number of the best art galleries and the relatively low awareness needed to promote alternative that fits the times. QR Code excel in design and favorable approach to provide the identity of the drawing and the information is being used to promote a variety of mediators of the museum. However, most of the Jeju Museum of Art is the situation with incomplete registration of the design development design development requires QR code is a feasible reality. In this study, I analyze the semantics of the Museum Identity divided into six places in Jeju registered public art gallery in the signifier and signified. Proposed a design QR code QR code developed and developing design reflects the Museum Identity of development based on a selection of four places to the use case analysis of the design according to the value of properties.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.99-105
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• 2022

In China, with the rise of third-party payments such as WeChat Pay and Alipay, the traditional business of banks has been greatly affected. Banks can encourage and expand QR code payments to merchants. Therefore, it is meaningful to analyze and study the QR code work of banks. The purpose of this study is to analyze the effect of the execution of the zero-rate of the comprehensive payment QR code combined with the payment cycle and Funds Transfer Pricing (FTP) on commercial banks in China. Based on the manually collected customer data of Chinese commercial banks, this paper conducts a case analysis combined with the calculation method of financial indicators. As a result of the study, it was found that commercial banks need to continue to implement the policy as the advantages of introducing the integrated QR code fee rate 0 policy are greater than the disadvantages. This paper provides feasible suggestions on how to quickly occupy the offline payment market for commercial banks, which has guiding significance for commercial banks' marketing decisions. Presently, there are few studies on the zero-rate subsidy policy implemented by Chinese commercial banks.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.400-402
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• 2012

본 논문은 모바일 단말기에 장착된 센서를 이용한 QR코드 기반의 인터랙티브한 모바일 증강현실 시스템을 제안한다. QR코드는 많은 양의 정보를 담을 수 있는 2차원 바코드이다. 본 논문에서 활용한 QR코드는 QR코드 메타데이터와 콘텐츠 상세 메타데이터로 구성된다. 메타 데이터를 사용함으로써 기존의 프로그램을 수정하지 않고 사용자가 쉽게 콘텐츠를 작성할 수 있다. 또한 상세 메타데이터를 이용해 마커위에 증강하고자 하는 모델의 정보를 데이터 서버로부터 획득한다. 기존의 증강현실시스템은 영상처리 기반의 카메라 자세 추정을 사용한다. 하지만 모바일 단말기에서는 낮은 사양의 컴퓨팅 파워와 많은 양의 알고리즘 계산으로인해 실시간 카메라 자세 추정이 힘들다. 따라서 본 논문에서는 모바일 단말기에 장착된 센서를 사용하여 카메라의 포즈를 계산 하여 증강현실을 구현한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.555-557
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• 2021

스마트폰이 널리 보급되면서 QR코드는 새로운 트렌드로 주목받고 있다. 많은 기업에서 QR코드를 활용하여 마케팅을 하고 있으며 QR코드는 사람들에게 친숙한 이미지가 되었다.. 이에 본 논문에서는 기존의 기업에서 서비스중인 인터폰을 통한 종업원과 소비자의 주문 구조방식의 Drive-Thru가 아닌 QR코드를 활용한 비대면 주문방식의 Drive-Thru 제공을 목적으로 한다. 이러한 서비스를 통하여 기존의 Drive-Thru를 이용 시 불편했던 의사소통, 정보부족을 소비자에게 효과적인 서비스로 제공할수 있고 기업에서는 기존의 Drive-Thru에 배치되어 있던 노동력을 효율적으로 사용하여 능률을 증가시킬 수 있는 기대효과를 가진다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.172-174
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• 2022

Logistics processing companies in Korea are mostly handling various types of products in and out. In order to process various types of products, the sorting business is performed by hand. In this paper, we propose a real-time QR code detection method using a vision sensor to achieve high efficiency with a small amount of manpower. The limiting system uses a vision sensor to process QR code recognition of logistics in real time. The proposed system can quickly identify a large number of QR codes through multiple recognition rather than QR code recognition, which is a single part of logistics. In the study, the system was actually implemented and verified, and multiple QR recognition was confirmed in the image through the vision center.

• Journal of the Korea Convergence Society
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• v.10 no.8
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• pp.171-179
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• 2019

This study was to develop the health education program model of young children based on e-book using QR code to prevent and manage fine dust. We developed program to prevent and manage fine dust for young children' health through in-depth discussions with 2 young children's health experts and 3 young children education experts, and developed the e-book using QR code. The program model for fine dust's prevention education based on e-book using QR code was verified for suitability as a field adaptation and teaching medium for 5-year old. The results of this study are as follows: First, the program model for fine dust's prevention education based on e-book using QR code was developed through 3 stages of appreciation activity-central activity-finishing activity. Second, the e-book using QR code is a useful teaching medium applicable to fine dust's prevention education program. In conclusion, the e-book-based fine dust's prevention education program using QR code will be used as an appropriate education method for fine dust's prevention and health management activities in the field of education for young children.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.846-849
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• 2024

다양한 분야에서 QR 코드가 급속도로 확산되면서, QR 코드를 악용하여 사용자를 악성 웹사이트로 리디렉션하는 '큐싱(Qshing)'이라는 새로운 형태의 사이버 범죄가 등장했다. 이에 본 연구에서는 일반화 성능을 향상시키기 위해 교차 검증(CV)을 활용하여 QR 코드 스캔과 관련된 악성 URL을 탐지하도록 설계된 스태킹 앙상블 모델을 제안한다. 이러한 통합은 실제 애플리케이션에서 높은 성능을 기대할 수 있도록 설계되었다. 본 연구는 이 모델이 기존의 연구보다 QR 코드 관련 사이버 위협에 대처하는 보다 효과적인 수단을 제공할 것으로 기대한다.