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Color CAPTCHAのための色妨害画像に対する色恒常性の成立度合いの検討
http://hdl.handle.net/10458/6439
http://hdl.handle.net/10458/643983a96da5-5ee1-4fff-ac68-1d1c2c775af0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
本文 (850.1 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | Color CAPTCHAのための色妨害画像に対する色恒常性の成立度合いの検討 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Investigation of the Color Constancy of Color Obstruction Images for CAPTCHA | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | CAPTCHA, color constancy, gray world assumption | |||||
| 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 | departmental bulletin paper | |||||
| 著者 |
臼崎, 翔太郎
× 臼崎, 翔太郎× 中原, 裕介× 山場, 久昭× 油田, 健太郎× 岡崎, 直宣× 臼崎, 翔太郎× Nakahara, Yusuke |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Currently, the text-based CAPTCHA which makes the user answer the original characters from the distorted those is standardly used. In addition, reCAPTCHA has recently used as image-based CAPTCHA which is easy for humans to understand. However, these standard CAPTCHAs are broken with high success rate because of the progressing of machine learning and image processing technology. Although obstacles that make it impossible to read the machine are necessary, it causes the owing to the success rate of the human decrease. Therefore, the requirement for CAPTCHA is not only more to be difficult for the machine but also to be easy for humans. On the other hand, Color-based CAPTCHA has a high human success rate, but it is likely to be solved mechanically. This CAPTCHA does not add disturbance unlike the conventional ones can be easily solved by humans, however, it has a vulnerable in terms of security. In this paper, we propose a color CAPTCHA that uses color obstruction images has higher tolerance to machines. Due to the influence of color constancy, it is considered that high human success rate can be guaranteed even if there is color obstruction. We evaluated how much color constancy is functioned for color obstruction images, and confirmed that color recognition almost matches as in normal state. | |||||
| 言語 | en | |||||
| 書誌情報 |
ja : 宮崎大学工学部紀要 en : Memoirs of Faculty of Engineering, University of Miyazaki 巻 47, p. 211-214, 発行日 2018-07 |
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| 出版者 | ||||||
| 出版者 | 宮崎大学工学部 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Faculty of Engineering, University of Miyazaki | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 05404924 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00732558 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
