• Smart Media Journal
• /
• v.2 no.3
• /
• pp.39-46
• /
• 2013

According to popularization of smart phones, we can easily see the QR code attached to products. Restaurants also provide customers with store information using QR code. Sixteen years have passed since QR code was developed. In Korea, QR code has been widely utilized in the field of marketing because of easiness of technique implementation and channel expansion to mobile. However, to recognize QR code, we should run the proper application and focus on it during loading time. To address this problem, this paper proposes the app to manage store information using NFC technology. The proposed app saves easily store information through the name card of a store and facilitates its management obtained by a smart phone.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.07a
• /
• pp.371-374
• /
• 2014

현재 국내에서 사용되고 있는 신분 인증 시스템은 주민등록번호와 같은 개인 정보를 기반으로 인증을 수행하여, 프라이버시 침해 위협이 존재한다. 그 해결 방안으로 가상 ID를 이용하는 I-PIN과 e-ID 카드가 제안되었지만, 문제점은 ID와 패스워드만 알고 있다면 누구나 도용이 가능하고 오프라인에서 사용하는 플라스틱 카드의 경우 위 변조가 가능하다는 한계를 갖는다. 본 논문에서는 주민등록번호를 대체할 식별 데이터인 QR-ID를 생성하고, 이에 기반을 둔 QR-ID 카드를 제안한다. QR 코드는 인식기에 대한 제약이 적고 일부 데이터 조작만으로 새로운 QR 코드 생성이 가능하여 노출 시 새로운 ID로 갱신할 수 있으며, QR-ID는 소유자의 바이오메트릭 데이터로 암호화되어 타인이 복호화 할 수 없다.

• Journal of Convergence for Information Technology
• /
• v.7 no.6
• /
• pp.135-141
• /
• 2017

Recently, as elderly people suffering from chronic diseases have increased and disasters such as traffic accidents have increased, urgent rescue workers and doctors need to respond effectively to such emergencies. For elderly people, the difficulty in communicating their condition especially the health condition during disaster is one of the problems in which delay on immediate handling by rescue team can cause death. Providing a solution for this problem is one of the main issues in our research. In this paper, we use the QR code to communicate the minimum personal information and medical history needed for emergency medical treatment to emergency medical personnel, and to transmit the medical history and treatment data to the doctors of the hospital through QR code and fingerprint recognition, respectively. Especially, by using both QR code of smart phone and fingerprint of individual, we can protects personal information and strengthens privacy and security of medical information by allowing only authorized physicians to check medical records of the old patient.

• Journal of Korea Port Economic Association
• /
• v.29 no.4
• /
• pp.247-264
• /
• 2013

QR Code can save much more information than 1D Bar Code and encode various types of information. As it takes less general cost than high priced RFID, it can be recognized through smart-phone without any special facilities. Despite these strengths, QR Code is just used by general people for their daily life service, while 1D Bar Code is applied in all kinds of industry like sales, distribution, production management, quality management and so on. And RFID is also used in many industrial field like harbor and distribution area. The range of QR Code's usage is getting broad but still restrictive. So it is required to make new organized system. Therefore, this research suggests that Applying QR Code in the SCM. Connecting QR Code with SCM, it secures space for data's movement. And it helps not only rise the speed and accuracy of data flow but also reduce logistical cost.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.12 no.1
• /
• pp.83-89
• /
• 2012

Recently, due to widespread use of smartphones, the number of applications of the QR code is increased rapidly. QR codes, a kind of 2-dimensional barcode, is used to encode information such as simple URLs or namecards, especially for corporates' advertisement. Users can get some information easily by taking picture of the target QR code, however, fake or altered QR codes can cause serious problems, e.g., URL hijacking or infringement of private information because no one can identify the buried information in the QR code by his naked eye. In this paper, I summarize threats to the QR code and present how to tackle these threats.

• Journal of the Institute of Electronics and Information Engineers
• /
• v.50 no.6
• /
• pp.173-179
• /
• 2013

The traditional key exchange protocols are transmitted by using the cryptographic. However, these protocols are compromised by the attacker. To solve this problem, this paper proposes a key exchange protocol based on the steganography with the QR code. The steganography technique embed secret information to the images, documents, videos, and MP3 files and transmit to the others. The attacker can't know that the transmission data is the secret data. Therefore, the sender transmits efficiently and safely the secret data to the others. In additional, the cover image is using the QR code image to insert the secret key. If attackers scan the QR code, then they just read the information or connect URL. They can not be recognized that the QR code image is hiding the secret key. The experiments compare the QR code image with the well-known image about the distortion and the safety.

• Journal of the Institute of Convergence Signal Processing
• /
• v.19 no.2
• /
• pp.47-53
• /
• 2018

This paper proposes a method to express an MP3 audio file by a series of color QR codes which can be printed on the paper. Moreover, the method can compress the data considerably. Firstly, an MP3 file is divided into many small files which have maximum capacity of binary file of a QR code. Secondly, the multiple files are converted to multiple black-and-white QR codes. Lastly, every three QR codes are combined into color QR codes. When combining, each of three black-and-white QR codes are regarded as red, green, blue components respectively. In this method, the areas of a color QR code where two QR codes are overlapped are expressed by the colors Cyan, Magenta and Yellow. And the areas where three components are overlapped are expressed by white color. Contrarily, the areas that no components are overlapped are expressed by white color. Experimentation result shows that an MP3 file with 8.5MB the original MP3 files are compressed with the compression rate around 15.7. This method has the advantage that can be used in the environments that the internet access is impossible.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.1124-1127
• /
• 2021

대형마트 혹은 일반 마트에서 물건을 구매할 때 지금까지 얼마치의 물건을 담았는지 소비자들은 알기 어렵다. 그리고 여러 사람들이 많은 물건을 한 번에 구매하기 때문에 계산대에서 길게 늘어진 줄을 보고 최대한 사람이 적은 곳을 찾은 경험은 다들 있을 것이다. 그러한 점에서 최근 조금씩 늘어나는 무인 계산대에서 아이디어를 얻어 쇼핑을 할 때 끌고 다니는 카트에서 계산과정을 처리해 계산시간을 줄이고자 했다. 그러하여 카트에서 물건을 인식할 수 있어야 하며 인식한 물건의 가격 및 정보 등을 저장하고 있어야한다. 그래서 카트에 바코드를 인식할 수 있는 리더기와 가격정보를 보여 주는 스크린을 설치하였으며 계산대에 가서 저장했던 정보를 한 번에 처리기위해 QR 코드를 사용하였다. 스크린에 QR 코드를 띄우고 계산대에서 QR 코드를 찍으면 가격정보를 알 수 있고 그 자리에서 계산까지 가능하며 원하는 소비자는 본인의 휴대폰에 설치된 가계부에서도 QR 코드를 찍어서 구매한 물건들의 가격과 자세한 구매목록을 쉽게 저장할 수 있다. 기존 가계부에서는 구매목록을 하나하나 적어야 하기 때문에 귀찮을 수 있지만 이러한 방법을 통하면 기존방식보다 훨씬 편리할 것이라 생각했다.

• Science of Emotion and Sensibility
• /
• v.22 no.2
• /
• pp.59-69
• /
• 2019

The present study explored consumer's perception and preference on providing information of fashion products by using QR code and suggested the possibility for consumer-to-consumer and consumer-to-company connection. A survey was conducted on males and females in their 20s-a population among whom the rate of smart phone penetration is higher than in any other age group and who tend to exchange information online. The results showed that consumers are dissatisfied with the amount of information, terms of instructions, and ambiguous washing symbols currently provided. Therefore, the study identified the need for better methods of providing information and found that QR code, which is able to deliver high-quality information on fashion products, can be an efficient alternative. Moreover, respondents felt the need for detailed washing instructions, information on handling, and functionality of material on high-involvement fashion products such as outdoor, padding, suit, and underwear worn next to the skin. They also desire styling tips or purchasing information such as SNS OOTD (Outfit Of The Day) utilizing the product, other products that may go well with the one purchased, and similar products on casual wear and coat used on a daily basis. Therefore, QR code used as a link to information web pages or a social network can help consumers to satisfy information needs and to use the products effectively.

• Journal of the Korea Society of Computer and Information
• /
• v.16 no.11
• /
• pp.113-122
• /
• 2011

In this paper, we propose an iPhone application that allows the user to pay for donations using the camera, GPS and call functions of the iPhone. As iOS version 3.0 allows the iPhone camera to detect and read bar codes and QR codes, the proposed application uses such codes to identify a product the user wishes to donation. After determining the user's location using the iPhone GPS function, the application can then perform a navigation task that guides the user to a suitable shop or store where the user can make his or her donation. In addition, the application offers an ARS call function that allows the user to make a direct donation, even if the user does not know the telephone number for making such donations. Therefore, the proposed application provides an easy means for the user to pay for donations directly or indirectly.