動きベクトルを用いた動画像電子透かしの検討

Material type: 文書・図像類

Author: 岡田, 慎輔ほか

Publisher: 愛知工業大学

Publication date: 2006-03-31

Material Format: Digital

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Note (General)：: Motion vectors are employed in motion compensation (MC) predictive coding for video sequences. This paper presents a watermarking algorithm using moti...

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Material Type: 文書・図像類
Title: 動きベクトルを用いた動画像電子透かしの検討
Author/Editor: 岡田, 慎輔
中村, 栄治
沢田, 克敏
Author Heading: 岡田, 慎輔
中村, 栄治
沢田, 克敏
Publication, Distribution, etc.: 愛知工業大学
Publication Date: 2006-03-31
Publication Date (W3CDTF): 2006-03-31
Alternative Title: ウゴキ　ベクトル　ヲ　モチイタ　ドウガゾウ　デンシ　スカシ　ノ　ケントウ
A　Study on Video Watermarking using Motion Vectors
Periodical title: 愛知工業大学研究報告. B, 専門関係論文集 = Bulletin of Aichi Institute of Technology. Part B
No. or year of volume/issue: 41
Volume: 41
Pages: 45-49
ISSN (Periodical Title): ISSN : 0387-0812
Text Language Code: jpn
Target Audience: 一般
Note (General): Motion vectors are employed in motion compensation (MC) predictive coding for video sequences. This paper presents a watermarking algorithm using motion vectors， where watermark information is embedded in motion vector components (horizontal and/or veｒical).The motion vectors are treated in terms of integer-pixel accuracy or half-pixel accuracy. According to“0" or“1"of the watermark bit code， vector components are forced to have odd or even values in the former case，and integer or half-pixel values in the latter case. In our simulation experiments，the influence of the watermarking process on coded-decoded image qualities is investigated. Better image qualities are obtained when watermark bits are embedded in horizontal components than in vertical components. The SNR degradation obtain.ed is about 1dB compared with images without watermarking.
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/1289
Format (IMT): application/pdf
Source: http://repository.aitech.ac.jp/dspace/bitstream/11133/1289/1/%e7%b4%80%e8%a6%8141%e5%8f%b7B%28P45-49%29.pdf
http://repository.aitech.ac.jp/dspace/bitstream/11133/1289/1/%e7%b4%80%e8%a6%8141%e5%8f%b7B%28P45-49%29.pdf
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 愛知工業大学 : 愛知工業大学学術情報リポジトリ