{"created":"2023-05-15T10:01:36.922793+00:00","id":6229,"links":{},"metadata":{"_buckets":{"deposit":"fc4a2ac4-eac3-42b9-837c-a663f3a62cb2"},"_deposit":{"created_by":5,"id":"6229","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"6229"},"status":"published"},"_oai":{"id":"oai:miyazaki-u.repo.nii.ac.jp:00006229","sets":["73","73:36","73:36:330","73:36:330:469"]},"author_link":["11839","11847","33164","33163","14888"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2020-09","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"163","bibliographicPageStart":"159","bibliographicVolumeNumber":"49","bibliographic_titles":[{"bibliographic_title":"宮崎大学工学部紀要","bibliographic_titleLang":"ja"},{"bibliographic_title":"Memoirs of Faculty of Engineering, University of Miyazaki","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In recent years, CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart) have been introduced on many Web sites.It is a discrimination method based on a Turing test that identifies humans and automatic programs called bots, and is used to prevent fraudulent acts on Web services. In particular, it is becoming necessary to design a CAPTCHA that is easy to use on mobile devices. In this laboratory, Mizuta et al. have proposed a CAPTCHA for mobile devices that is resistant to bots using object tracking technology. It makes the object recognition by the program difficult by changing the transparency of the tracked object every time, and the effectiveness is shown. However, it has only been confirmed that the bot resistance is resistant to the meanShift that tracks objects in the video. In this paper, we conducted an experiment to investigate the resistance to attack techniques using Hough transform. The Hough transform is one of the most commonly used methods to detect figures such as straight lines and circles from images, and is considered to be an effective means of attacking CAPTCHA by Mizuta et al. After implementing an attack program, experiments and investigations confirmed that it was not resistant. Based on the survey results, we proposed two improvement plans to improve bot resistance.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宮崎大学工学部","subitem_publisher_language":"ja"},{"subitem_publisher":"Faculty of Engineering, University of Miyazaki","subitem_publisher_language":"en"}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00732558","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"05404924","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"竹口, 真理亜","creatorNameLang":"ja"},{"creatorName":"タケグチ, 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Hisaaki","creatorNameLang":"en"},{"creatorName":"山場, 久昭","creatorNameLang":"ja"},{"creatorName":"ヤマバ, ヒサアキ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Aburada, Kentaro","creatorNameLang":"en"},{"creatorName":"油田, 健太郎","creatorNameLang":"ja"},{"creatorName":"アブラダ, ケンタロウ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Okazaki, Naonobu","creatorNameLang":"en"},{"creatorName":"岡崎, 直宣","creatorNameLang":"ja"},{"creatorName":"オカザキ, ナオノブ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"竹口, 真理亜","creatorNameLang":"ja"},{"creatorName":"タケグチ, マリア","creatorNameLang":"ja-Kana"},{"creatorName":"Takeguchi, Maria","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"梁井, 孝治","creatorNameLang":"ja"},{"creatorName":"ヤナイ, タカハル","creatorNameLang":"ja-Kana"},{"creatorName":"Yanai, Takaharu","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-11-12"}],"displaytype":"detail","filename":"Engineering_49_p159.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文","url":"https://miyazaki-u.repo.nii.ac.jp/record/6229/files/Engineering_49_p159.pdf"},"version_id":"15c701d7-5d32-456f-ad5e-f9abfb0515af"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"CAPTCHA","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Dynamic CAPTCHA","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Bot","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Hough Transform","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Mobile devices","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"モバイル端末向けCAPTCHAのハフ変換を用いたボットへの耐性評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"モバイル端末向けCAPTCHAのハフ変換を用いたボットへの耐性評価","subitem_title_language":"ja"},{"subitem_title":"Evaluation of CAPTCHA for Mobile Devices against Bots Using Hough Transform","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"5","path":["73","36","330","469"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2020-11-12"},"publish_date":"2020-11-12","publish_status":"0","recid":"6229","relation_version_is_last":true,"title":["モバイル端末向けCAPTCHAのハフ変換を用いたボットへの耐性評価"],"weko_creator_id":"5","weko_shared_id":-1},"updated":"2023-11-08T01:43:13.808137+00:00"}