講演名 2012-08-28
A Use of Magnitude-Only Images for Privacy- and Copyright-Protected Image Trading Systems
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抄録(和)
抄録(英) This paper introduces magnitude-only images to image trading systems in which not only the copyright of images but also the privacy of purchasers are protected. In such systems, an image is segmented into two pieces for copyright protection; one is sent to a trusted third party (TTP) and the other is directly sent to a purchaser. The TTP watermarks the received piece and it sends the watermarked piece to the purchaser, and here, the room for a privacy violation exists. Whereas conventional schemes divide an image in the spatial domain, the proposed scheme divides an image in the discrete Fourier transformed domain; two pieces are amplitude and phase spectra. An amplitude-only image which is the inversely transformed amplitude spectra almost completely protects its content, so the privacy of purchasers are protected against the TTP. In addition, any image watermarking technique which watermarks the magnitude of images can be used in the proposed scheme. Experimental results show the effectiveness of the proposed scheme.
キーワード(和)
キーワード(英) magnitude-only images / digital fingerprint / copyright protection / privacy protection / data hiding
資料番号 LOIS2012-23,IE2012-55,EMM2012-46
発行日

研究会情報
研究会 LOIS
開催期間 2012/8/20(から1日開催)
開催地(和)
開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
幹事氏名(和)
幹事氏名(英)
幹事補佐氏名(和)
幹事補佐氏名(英)

講演論文情報詳細
申込み研究会 Life Intelligence and Office Information Systems (LOIS)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A Use of Magnitude-Only Images for Privacy- and Copyright-Protected Image Trading Systems
サブタイトル(和)
キーワード(1)(和/英) / magnitude-only images
第 1 著者 氏名(和/英) / Shenchuan LIU
第 1 著者 所属(和/英)
Dept. Inf. & Comm. Systems, Tokyo Metropolitan University
発表年月日 2012-08-28
資料番号 LOIS2012-23,IE2012-55,EMM2012-46
巻番号(vol) vol.112
号番号(no) 188
ページ範囲 pp.-
ページ数 6
発行日