| Presentation | 2017-02-20 Privacy Protection in Social Networking Services based on an Encryption-then-Compression System for the JPEG Standard Takahiro Maekawa, Kenta Kurihara, Hitoshi Kiya, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Conventional secure image transmision is based on a Compression-then-Encryption system where image compression has to be conducted prior to image encryption. On the other hand, Encryption-then-Compression( ETC )systems where some image encryption can be conducted prior to compression, is expected for privacy protection. A block-based encryption scheme with the assumption of using JPEG compression has been proposed as an image encryption one for ETC systems. However, the image encryption scheme generates the block artifact on images due to the effect of subsampling chroma signals. In this article, we consider the reason why the artifact is generated and then propose a method to remove it. As a result, the method enables us to use any JPEG decoders in the ETC system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | ETC system / Image encryption |
| Paper # | ITS2016-43,IE2016-101 |
| Date of Issue | 2017-02-13 (ITS, IE) |
| Conference Information | |
| Committee | IE / ITS / ITE-AIT / ITE-HI / ITE-ME / ITE-MMS / ITE-CE |
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| Conference Date | 2017/2/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image Processing, etc. |
| Chair | Seishi Takamura(NTT) / Tomotaka Nagaosa(Kanto Gakuin Univ.) / Tokiichiro Takahashi(TDU) / Masayuki Sato(Univ. of Kitakyushu) / Miki Haseyama(Hokkaido Univ.) / Eiichi Miyashita(NHK) / Koji Minami(Mitsubishi Electric Corp.) |
| Vice Chair | Takayuki Hamamoto(Tokyo Univ. of Science) / Atsuro Ichigaya(NHK) / Masahiro Fujii(Utsunomiya Univ.) / Tomotaka Wada(Kansai Univ.) / / / Norio Tagawa(Tokyo Metropolitan Univ.) |
| Secretary | Takayuki Hamamoto(NTT) / Atsuro Ichigaya(Chiba Inst. of Tech.) / Masahiro Fujii(Meiji Univ.) / Tomotaka Wada(AIST) / (Tokyo Polytechnic Univ.) / (NICT) / Norio Tagawa(NTT) / (NHK) / (NHK) |
| Assistant | Kei Kawamura(KDDI R&D Labs.) / Keita Takahashi(Nagoya Univ.) / Tetsuya Manabe(Saitama Univ.) / Yanlei Gu(Univ. of Tokyo) / Koichiro Hashiura(Akita Pref. Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Image Engineering / Technical Committee on Intelligent Transport Systems Technology / Technical Group on Artistic Image Technology / Technical Group on Human Inormation / Technical Group on Media Engineering / Technical Group on Multi-media Storage / Technical Group on Consumer Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Privacy Protection in Social Networking Services based on an Encryption-then-Compression System for the JPEG Standard |
| Sub Title (in English) | |
| Keyword(1) | ETC system |
| Keyword(2) | Image encryption |
| 1st Author's Name | Takahiro Maekawa |
| 1st Author's Affiliation | Tokyo Metropolitan University(Tokyo Metro.Univ.) |
| 2nd Author's Name | Kenta Kurihara |
| 2nd Author's Affiliation | Tokyo Metropolitan University(Tokyo Metro.Univ.) |
| 3rd Author's Name | Hitoshi Kiya |
| 3rd Author's Affiliation | Tokyo Metropolitan University(Tokyo Metro.Univ.) |
| Date | 2017-02-20 |
| Paper # | ITS2016-43,IE2016-101 |
| Volume (vol) | vol.116 |
| Number (no) | ITS-463,IE-464 |
| Page | pp.pp.7-12(ITS), pp.7-12(IE), |
| #Pages | 6 |
| Date of Issue | 2017-02-13 (ITS, IE) |