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  1. 論文誌(ジャーナル)
  2. Vol.59
  3. No.4

Recognition Accuracy Improvement of Obfuscated QR Code by Using Reliability Information and GMD Decoding

https://ipsj.ixsq.nii.ac.jp/records/187411
https://ipsj.ixsq.nii.ac.jp/records/187411
a200fdd8-d571-4953-b631-4eaa6647908c
名前 / ファイル ライセンス アクション
IPSJ-JNL5904015.pdf IPSJ-JNL5904015.pdf (1.3 MB)
Copyright (c) 2018 by the Information Processing Society of Japan
オープンアクセス
Item type Journal(1)
公開日 2018-04-15
タイトル
タイトル Recognition Accuracy Improvement of Obfuscated QR Code by Using Reliability Information and GMD Decoding
タイトル
言語 en
タイトル Recognition Accuracy Improvement of Obfuscated QR Code by Using Reliability Information and GMD Decoding
言語
言語 eng
キーワード
主題Scheme Other
主題 [一般論文] Reed-Solomon codes, Euclidean decoding, GMD decoding, QR code
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者所属
Graduate School of Engineering, Kobe University
著者所属
Graduate School of Engineering, Kobe University
著者所属(英)
en
Graduate School of Engineering, Kobe University
著者所属(英)
en
Graduate School of Engineering, Kobe University
著者名 Keisuke, Furumoto

× Keisuke, Furumoto

Keisuke, Furumoto

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Masakatu, Morii

× Masakatu, Morii

Masakatu, Morii

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著者名(英) Keisuke, Furumoto

× Keisuke, Furumoto

en Keisuke, Furumoto

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Masakatu, Morii

× Masakatu, Morii

en Masakatu, Morii

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論文抄録
内容記述タイプ Other
内容記述 In recent years, QR code is used in various situations such as in medical prescription and the boarding procedure at the airport in addition to conventional applications. With expanding application, there are some QR codes that cannot be read by the conventional method. In this paper, we refer to this kind of QR code as obfuscated QR code. Considering the situation that the QR code is more common, improving the encoding method is not realistic. Hence, in reading obfuscated QR code, improving only the decoding method is required. In general, Euclidean decoding is used in the decoding method of QR code. On the other hand, Generalized Minimum Distance (GMD) decoding has been proposed. GMD decoding is a method of approximately performing maximum likelihood decoding by using information of the likelihood of each symbol called reliability. However, a method for calculating the reliability information of each symbol of the two-dimensional code has not been proposed. In this paper, we propose a method of calculating reliability information using the graphical features of QR code. Then, we show the proposed method is more useful in recognition accuracy of an obfuscated QR code than the conventional method using Euclidean decoding.
------------------------------
This is a preprint of an article intended for publication Journal of
Information Processing(JIP). This preprint should not be cited. This
article should be cited as: Journal of Information Processing Vol.26(2018) (online)
DOI http://dx.doi.org/10.2197/ipsjjip.26.350
------------------------------
論文抄録(英)
内容記述タイプ Other
内容記述 In recent years, QR code is used in various situations such as in medical prescription and the boarding procedure at the airport in addition to conventional applications. With expanding application, there are some QR codes that cannot be read by the conventional method. In this paper, we refer to this kind of QR code as obfuscated QR code. Considering the situation that the QR code is more common, improving the encoding method is not realistic. Hence, in reading obfuscated QR code, improving only the decoding method is required. In general, Euclidean decoding is used in the decoding method of QR code. On the other hand, Generalized Minimum Distance (GMD) decoding has been proposed. GMD decoding is a method of approximately performing maximum likelihood decoding by using information of the likelihood of each symbol called reliability. However, a method for calculating the reliability information of each symbol of the two-dimensional code has not been proposed. In this paper, we propose a method of calculating reliability information using the graphical features of QR code. Then, we show the proposed method is more useful in recognition accuracy of an obfuscated QR code than the conventional method using Euclidean decoding.
------------------------------
This is a preprint of an article intended for publication Journal of
Information Processing(JIP). This preprint should not be cited. This
article should be cited as: Journal of Information Processing Vol.26(2018) (online)
DOI http://dx.doi.org/10.2197/ipsjjip.26.350
------------------------------
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00116647
書誌情報 情報処理学会論文誌

巻 59, 号 4, 発行日 2018-04-15
ISSN
収録物識別子タイプ ISSN
収録物識別子 1882-7764
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Keisuke, Furumoto, Masakatu, Morii, 2018.

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