| Presentation | 2021-01-21 Comparing Pixel Predictors with Different Coding Order for Lossless Image Coding Aki Kunieda, Keita Takahashi, Toshiaki Fujii, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The efficiency of lossless image coding depends on the pixel predictors, with which unknown pixels are predicted from already-processed pixels. Conventionally, the pixels are processed in the Raster order starting from the top-left pixel. Therefore, when predicting a specific pixel, the predictor can refer only to the upper side of the target pixel. We proposed a pixel predictor that can use the lower half of the target pixels to predict the target pixels. The experimental results showed that the proposed method achieved comparable coding efficiency to the conventional CNN-based pixel predictor. In addition, the proposed method is able to process multiple pixels at the same time. Therefore, the proposed method achieved much faster decoding than the conventional CNN-based pixel predictor. In this paper, we present detailed evaluations on our method to reveal the trade-off between the coding efficiency and computational cost. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lossless image coding / Image Inpainting / Convolutional neural network (CNN) |
| Paper # | IE2020-34 |
| Date of Issue | 2021-01-14 (IE) |
| Conference Information | |
| Committee | IE |
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| Conference Date | 2021/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image Processing, Image Coding, etc |
| Chair | Hideaki Kimata(NTT) |
| Vice Chair | Kazuya Kodama(NII) / Keita Takahashi(Nagoya Univ.) |
| Secretary | Kazuya Kodama(KDDI Research) / Keita Takahashi(Nagoya Inst. of Tech.) |
| Assistant | Shunsuke Iwamura(NHK) / Shinobu Kudo(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Image Engineering |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Comparing Pixel Predictors with Different Coding Order for Lossless Image Coding |
| Sub Title (in English) | |
| Keyword(1) | Lossless image coding |
| Keyword(2) | Image Inpainting |
| Keyword(3) | Convolutional neural network (CNN) |
| 1st Author's Name | Aki Kunieda |
| 1st Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 2nd Author's Name | Keita Takahashi |
| 2nd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| 3rd Author's Name | Toshiaki Fujii |
| 3rd Author's Affiliation | Nagoya University(Nagoya Univ.) |
| Date | 2021-01-21 |
| Paper # | IE2020-34 |
| Volume (vol) | vol.120 |
| Number (no) | IE-329 |
| Page | pp.pp.1-6(IE), |
| #Pages | 6 |
| Date of Issue | 2021-01-14 (IE) |