| Presentation | 2014/9/11 A Study of Image Coding Using Multiple Bases Sets Designed under Different Sparsity Condition Takahiro Imaizumi, Ji WANG, Yoshiyuki YASHIMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We had proposed an image coding method using the multiple sparse bases sets based on local features calculated by DSIFT, in which an image to be encoded is divided into blocks and class number of each block is determined, and the sparse bases set designed for the class is utilized for encoding. In this paper, we introduce a new technique using the multiple sparse bases sets designed under different sparsity conditions. In the proposed method, for each class classified with local features, several sparse bases sets are designed under different K-SVD constraint condition about the number of non-zero coefficients, and they are adaptively used block by block in the encoder. Experimental results show that the proposed method can improve R-D coding efficiency compared to conventional one using single bases set for each class. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Image coding / Sparse coding / K-SVD / OMP / DSIFT |
| Paper # | LOIS2014-25 |
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| Conference Information | |
| Committee | LOIS |
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| Conference Date | 2014/9/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Life Intelligence and Office Information Systems (LOIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study of Image Coding Using Multiple Bases Sets Designed under Different Sparsity Condition |
| Sub Title (in English) | |
| Keyword(1) | Image coding |
| Keyword(2) | Sparse coding |
| Keyword(3) | K-SVD |
| Keyword(4) | OMP |
| Keyword(5) | DSIFT |
| 1st Author's Name | Takahiro Imaizumi |
| 1st Author's Affiliation | Graduate School of Information Science, Chiba Institute of Technology() |
| 2nd Author's Name | Ji WANG |
| 2nd Author's Affiliation | Graduate School of Information Science, Chiba Institute of Technology |
| 3rd Author's Name | Yoshiyuki YASHIMA |
| 3rd Author's Affiliation | Graduate School of Information Science, Chiba Institute of Technology |
| Date | 2014/9/11 |
| Paper # | LOIS2014-25 |
| Volume (vol) | vol.114 |
| Number (no) | 220 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |