Digital Watermarking Method Using Image Retrieval to Printed Images without Finder Patterns and Alignment Pattern Language Japanese Type Proceedings of Japanese Conferences Authors Hiroaki Ogawa, Motoi Iwata, Koichi kise Title Digital Watermarking Method Using Image Retrieval to Printed Images without Finder Patterns and Alignment Pattern Journal Proc. of 2016 Symposium on Cryptography and Information Security (SCIS2016) Presentation number 3C1-2 Number of pages 7 Reviewed Not reviewed Date January 2016 Key Ogawa2016 (id=1500)
Abstract 電子透かしを用いて，印刷物に人間には認識できないように情報を埋め込み，それをスマートフォンで撮影して情報を取り出す手法について検討する．SCIS2013 に投稿した手法を基に手法の改良を行った．従来の電子透かし法では位置検出のためにマーカや，枠線をつける必要があった．本来，電子透かしの利点の一つは，見た目を損なわないという点にあるのだが，マーカや，枠線をつけることはその利点と相反している．本稿では，この問題点を解決するために，位置検出の手法を改善し，画像に何も付与せずに位置検出し，透かしから情報を取り出す手法を提案する．画像に何も付与せずに位置検
出を行うために，画像検索を用いて撮影画像内にのどの位置に透かし入り画像が存在するのかを検出し，位置検出を行う．画像検索は計算コストが高いため，位置検出はスマートフォン上でなくサーバ上で行っている．位置検出法を変更した結果，従来法と比べ処理時間について従来法が0.34 秒だったのに対して0.9 秒を要するようになったものの，同等の抽出率を保持できた．
Export this publication Style Lab style (Japanese) Lab style (English) KAKENHI style (Japanese) KAKENHI style (English) BibTeX KAKENHI LaTeX macros (\paper, \conf …) CSL style (APA, IEEE, ...) OMU activity DB (TSV for Excel) Output language 日本語 English CSL style IEEE APA 7th Chicago (author-date) Springer (author-date) Elsevier Harvard Locale en-US ja-JP Macro auto (by type and fields) \paper \paperno \paperdoi \conf \confpaper \book Sheet Auto by type ENTKKB0110_論文 ENTKKB0120_書籍等出版物 ENTKKB0130_MISC（その他記事） ENTKKB0230_講演・口頭発表等 Your name (for first/last author flags)
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How to write the definition One macro per line as \name{field}{field}…. A field name in braces is replaced by its (LaTeX-escaped) value; other text is kept. Rename macros or add lines freely — they appear in the macro selector. A line like master_thesis: thesis fixes the macro for a type (automatic choice: journals use paperdoi with a DOI, paperno with a number, else paper; conferences conf with pages, else confpaper; books book). {pages} comes as 119--124; {journal} falls back to the book title. Fields:
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Output Copy results Download
@inproceedings{Ogawa2016,
author = {Ogawa, Hiroaki and Iwata, Motoi and kise, Koichi},
title = {Digital Watermarking Method Using Image Retrieval to Printed Images without Finder Patterns and Alignment Pattern},
booktitle = {Proc. of 2016 Symposium on Cryptography and Information Security (SCIS2016)},
year = 2016,
month = jan,
numpages = {7},
note = {3C1-2}
} ← Back to list