| Presentation | 2020-03-16 Image compression by colorization Hiya Roy, Subhajit Chaudhury, Toshihiko Yamasaki, Tatsuaki Hashimoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Image compression techniques exploit the inherent psycho-visual limitations in human vision to reduce the number of bits required to store an image without degrading its perceptual quality. ?While most recent methods use an encoder-decoder based Convolutional Neural Networks (CNN) features, our approach focuses on limiting the size of the compressed representation by sampling and storing some color informative pixels of the chrominance channels. We propose a uniform sampler-based encoder, that chooses and stores only a few color informative pixels. During decoding, we use these color values from a few selected pixels along with the luminance channel to reconstruct the full-color image that looks perceptually similar to the original image. Experimental results prove the effectiveness of the proposed method by demonstrating comparable or better performance compared to the state-of-the-art methods in image compression. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lossy image compressionColorizationDeep neural networks |
| Paper # | PRMU2019-86 |
| Date of Issue | 2020-03-09 (PRMU) |
| Conference Information | |
| Committee | PRMU / IPSJ-CVIM |
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| Conference Date | 2020/3/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoichi Sato(Univ. of Tokyo) |
| Vice Chair | Toru Tamaki(Hiroshima Univ.) / Akisato Kimura(NTT) |
| Secretary | Toru Tamaki(NTT) / Akisato Kimura(OMRON SINICX) |
| Assistant | Yusuke Uchida(DeNA) / Takayoshi Yamashita(Chubu Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Special Interest Group on Computer Vision and Image Media |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Image compression by colorization |
| Sub Title (in English) | |
| Keyword(1) | Lossy image compressionColorizationDeep neural networks |
| 1st Author's Name | Hiya Roy |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Subhajit Chaudhury |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Toshihiko Yamasaki |
| 3rd Author's Affiliation | The University of Tokyo(UTokyo) |
| 4th Author's Name | Tatsuaki Hashimoto |
| 4th Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2020-03-16 |
| Paper # | PRMU2019-86 |
| Volume (vol) | vol.119 |
| Number (no) | PRMU-481 |
| Page | pp.pp.107-108(PRMU), |
| #Pages | 2 |
| Date of Issue | 2020-03-09 (PRMU) |