• Title, Summary, Keyword: QR code

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QR-code finder recognition using four directional scanning method (네 방향 스캔 방법을 이용한 QR코드 파인더 인식)

  • Lee, Yeon-Kyung;Yoo, Hoon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.6
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    • pp.1187-1192
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    • 2012
  • This paper describes a method to detect QR-code finders by four-direction scanning. The finder recognition is the first step in the QR-code recognition. If the finder is missing, QR-code recognition fails. The existing QR-code recognition method has a problem that the recognition performance decreases for perspectively distored images. To overcome the problem, we introduce four-direction scanning and a candidate set image to accurately detect QR-code finders. Using morphological operations detect the QR-code finder in the candidate set image robustly. To show the effectiveness of our method, we compared our method with the well-known existing method. The experimental result indicates that the proposed method is superior to the existing method in terms of the finder recognition performance.

Three-dimensional QR Code Using Integral Imaging (집적 영상을 활용한 3차원 QR code)

  • Kim, Youngjun;Cho, Ki-Ok;Han, Jaeseung;Cho, Myungjin
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.12
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    • pp.2363-2369
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    • 2016
  • In this paper, we propose three-dimensional (3D) quick-response (QR) code generation technique using passive 3D integral imaging and computational integral imaging reconstruction technique. In our proposed method, we divide 2D QR code into 4 planes with different reconstruction depths and then we generate 3D QR code using synthetic aperture integral imaging and computational reconstruction. In this 3D QR code generation process, we use integral imaging which is one of 3D imaging technologies. Finally, 3D QR code can be scanned by reconstructing and merging 3D QR codes at 4 different planes with computational reconstruction. Therefore, the security level for QR code scanning may be enhanced when QR code is scanned. To show that our proposed method can improve the security level for QR code scanning, in this paper, we carry out the optical experiments and computational reconstruction. In addition, we show that 3D QR code can be scanned when reconstruction depths are known.

A Comparative Study of Recognition Rate of Color QR Code Printed on Tyvek and Cotton Material

  • Park, Suhrin
    • Journal of Fashion Business
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    • v.21 no.3
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    • pp.14-28
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    • 2017
  • This purpose of this study to analyze effect material properties have on change in QR code recognition rate according to change of materials by comparing recognition rate of color QR code. QR code applied to textile materials has the advantage of being washable and being applicable to lost child prevention goods or clothes or a person with dementia through record of information relating to the material or input of additional information, differently from QR code printed on the conventional paper. An effective method of entering QR code in textile materials is Digital Textile Printing(DTP), that facilitates printing by rapidly applying diverse information, and small quantity production. It is possible to tailor various QR codes according to use. Regarding samples to use, cotton material used in clothing products and Tyvek material recently applied to clothing and related products were selected. Reactive dyes were used for cotton, pigment was used for Tyvek, and QR code was printed with an inkjet printer by direct printing method. Printing methods and surface textures are different between cotton and Tyvek. It was revealed that consequent print results and results of recognition rate were different. Regarding color to be printed, 2015 S/S - 2017 S/S color presented by Pantone was used. Color combination affected recognition rate of color QR code. Understanding color combination, material properties and print characteristics may be helpful in increasing recognition rate of color QR code, and may contribute to usability of color QR code applied to textile materials in the future.

Algorithm of Decoding the Data Codeword in Two-Dimensional QR Code (이차원 QR Code에서 데이터 코드워드의 디코딩 알고리즘)

  • Park, Kwang Wook;Lee, Jong Yun
    • Journal of the Korea Convergence Society
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    • v.4 no.4
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    • pp.21-29
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    • 2013
  • Two-dimensional QR Code has improved greatly the limits on the capacity, size, direction of the one-dimensional bar code. And it has the capacity of compressing and storing the massive amount of data and is widely used in many applications. Recently, the two-dimensional QR Code has been spread rapidly because of introducing the smart phones and increasing the amount of using them. However, there is little documentations about decoding the QR Code in which can store the large amount of information. In this paper, therefore, we present specific processing procedures and algorithms on decoding the two-dimensional QR Code and then make us understand their decoding process by explaining some examples.

The Brand Communication Effect of QR Code for Product Package Design (제품 포장 디자인에서의 QR 코드가 브랜드 커뮤니케이션에 미치는 효과)

  • Lee, Kwang-Sook;Kwak, Bo-Sun
    • Journal of the Korean Printing Society
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    • v.29 no.3
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    • pp.31-40
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    • 2011
  • Using of QR(Quick Response) code is dramatically extended to various marketing area; not only substitute of bar code but also new tool of PR and marketing. This research attempts to analyze brand communication effect using QR code printed on product package especially in snack product category. Findings are 1) communication effect are different according to the type of book-trailers; 2) cinematic production and animation are the most effective type of book-trailers; 3) for memory and confirmation(sharing), a)stills and straplines, Analysis result of hypothesis I showed that characters of QR code influence on brand attitude. Among dependent variables, only reliability is significant. That means reliability of company and brand using QR code influence on brand attitude. The higher reliability of QR code, the better brand attitude of the brand. Analysis result of hypothesis II found that only reliability is significant on purchasing intention. Reliability of company and product using QR code influences on purchasing intention. The higher reliability of QR code, the higher possibility of purchasing products. Therefore, company can enhance reliability of both company and its products by using QR code. Using QR code will bring high reliability and high brand attitude and purchasing intention.

Efficient Scheme for Secret Hiding in QR Code by Improving Exploiting Modification Direction

  • Huang, Peng-Cheng;Li, Yung-Hui;Chang, Chin-Chen;Liu, Yanjun
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.12 no.5
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    • pp.2348-2365
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    • 2018
  • QR codes as public patent are widely used to acquire the information in various fields. However, it faces security problem when delivering the privacy message by QR code. To overcome this weakness, we propose a secret hiding scheme by improving exploiting modification direction to protect the private message in QR code. The secret messages will be converted into octal digit stream and concealed to the cover QR code by overwriting the cover QR code public message bits. And the private messages can be faithfully decoded using the extraction function. In our secret hiding scheme, the QR code public message still can be fully decoded publicly from the marked QR codes via any standard QR Code reader, which helps to reduce attackers' curiosity. Experiments show that the proposed scheme is feasible, with high secret payload, high security protection level, and resistant to common image post-processing attacks.

A Study on the Application of QR Code through Case Study -Focused on Logistics and Distribution Sector- (사례 분석을 통한 QR 코드의 활용방안 연구 -물류.유통분야를 중심으로-)

  • Park, Eunji
    • Journal of Korea Port Economic Association
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    • v.29 no.4
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    • pp.247-264
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    • 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.

An Exploratory Study of QR Code Utilization for Retailers' Multichannel Strategy (소매업체의 멀티채널 전략을 위한 QR코드 활용의 탐색적 연구)

  • Yoon, Namhee;Kim, Eun Young
    • Fashion & Textile Research Journal
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    • v.16 no.5
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    • pp.730-744
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    • 2014
  • With advances in QR code, mobile is becoming one of important channels in the fashion retail industries. This study attempts to understand the importance of QR code utilization in creating multi-channel business model. Study objectives are to classify types of multi-channel retailing by QR code utilization and to explore the role of QR code technology in strategic marketing elements for types of multichannel retailer. As an exploratory approach, a total of 78 news articles regarding QR code issues were reviewed and analyzed by focusing on 48retailers seleted in this study. The results found seven dimensions of QR code marketing strategies: abundant product information, additional information contents, transaction accessibility, connectedness to channels, location based service, loyalty program and multimedia advertising. Based a combination of channels and level of mobile apps' activation, multichannel retailers utilizing QR code technology were classified into four types; bricks-click-active mobile model, bricks-click-inactive mobile model, bricks-click model, and click-active mobile model. There were differences of using QR code marketing strategies among multichannel models. According to results, for bricks-and-mortar retailers, QR code was critical to integrate shopping experience with merchandise or sales promotions across channels. In addition, for non-store retailers, the QR code utilization was successful in expanding mobile channels, which can promote retail sales by a two-way interaction with customers via the mobile apps.

Blind QR Code Steganographic Approach Based upon Error Correction Capability

  • Chiang, Yin-Jen;Lin, Pei-Yu;Wang, Ran-Zan;Chen, Yi-Hui
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.7 no.10
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    • pp.2527-2543
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    • 2013
  • A novel steganographic QR code algorithm, which not only coveys the secret into the widely-used QR barcode but also preserves the readability of QR content and the capability of error correction, is presented in this article. Different from the conventional applications for QR barcode, the designed algorithm conceals the secret into the QR modules directly by exploiting the error correction capability. General browsers can read the QR content from the QR code via barcode readers; however, only the authorized receiver can further reveal the secret from the QR code directly. The new mechanism can convey a larger secret payload along with adjustment of the QR version and error correction level. Moreover, the blind property allows the receiver to reveal the secret without the knowledge of the embedded position of modules. Experimental results demonstrate that the new algorithm is secure, efficient and feasible for the low-power QR readers and mobile devices.

A Study of QR-Code Security Method for Smart Phone (스마트폰에서의 QR-Code 보안기법에 대한 연구)

  • Byeon, Jin-Young;Ahn, Yo-Han;Lee, Jae-Woong;Lee, Ki-Young
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.699-700
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    • 2011
  • This paper shows the way to prevent the leaking of private information due to malicious codes or connections of invalid URL in QR-Codes, which is used in the present smart-phone. It is difficult to filter out the connections directly with decoding the QR-Codes, so before connecting, we construct servers which compare results of decoding the QR-Codes to a valid URL. The server notifies warning to Smart-phone users if the results were uncertain URLs which did not registered in the server. This paper would help the Smart-phone users to protect their privacy.

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