人間の視覚特性を考慮したディジタル画像に対するデータ埋め込み法の改良

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2013/01/01

タイトル(英語): Improved Data Embedding Method for Digital Image with Human Visual Systems

著者名: 藤井　淳広（広島大学大学院工学研究科），中本　昌由（広島大学大学院工学研究科），棟安　実治（関西大学システム理工学部），大野　修一（広島大学大学院工学研究科）

著者名(英語): Atsuhiro Fujii (Graduate School of Engineering, Hiroshima University), Masayoshi Nakamoto (Graduate School of Engineering, Hiroshima University), Mitsuji Muneyasu (Engineering Science, Kansai University), Shuichi Ohno (Graduate School of Engineering, Hiroshima University)

キーワード: データ埋め込み，人間の視覚特性（HVS），ビットパターン　　Data embedding，Human Visual Systems (HVS)，bit pattern

要約(英語): In this paper, we consider a data-embedding method in the discrete wavelet transform (DWT) domain of the digital images. A bit-pattern embedding method with Human visual system (HVS) and correlation-based detection have been proposed by Kino and Wada based on the watermarking scheme, which is referred to as the conventional method. In the conventional method, the capacity of embedding data depends on the ‘potential’ correlation between the DWT coefficients of the host image and watermark signal. We propose the new embedding and detection algorithm without affected by the ‘potential’ correlation in order to increase the capacity of embedding data. The data-embedding and detection in the proposed method are performed by considering the absolute value of the correlation between the watermarked DWT coefficients and watermark signal. In the simulation, we show that the capacity of the embedding data in the proposed method is increased as compared with the conventional method under the same PSNR value (image quality).

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.133 No.1 （2013） 特集：2012 Korea-Japan Joint Workshop on Frontiers of Computer Vision (FCV2012)

本誌掲載ページ: 185-192 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/133/1/133_185/_article/-char/ja/