著者

大竹 剛 真島 恵吾 合志 清一 藤井 亮介 伊藤 浩 鈴木 光義 高井 重典 寛座 武智

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会誌 : 映像情報メディア (ISSN:13426907)

巻号頁・発行日

vol.62, no.8, pp.1292-1300, 2008-08-01

被引用文献数

1

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As digital broadcasting has become widespread and the available bandwidth for Internet access has become wider, more high-quality digital content has been distributed to users, making illegal copying a critical issue in the content business. New technology for identifying illegally distributed content is necessary to deter it. We developed two methods for identifying video content: the extraction of characteristic information from video and the use of phase-only correlation. A system was developed to apply these methods to digital TV programs. Experiments on four weeks of broadcast content gave good results, which suggests that a combination of the two methods would enable us to identify video content distributed illegally over the Internet precisely and quickly.