| Presentation | 1995/12/15 Wave1et image coding using directional power classified vector quantization Mchiaki KATO, Shuitsu MATSUMURA, Tsuyoshi TAKEBE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new scheme for the image coding using wavelet transform. We treat transformed image with 2 resolution levels. Except the lowest frequency subimage, we classify subimages into 3 groups by their directions, then unify two groups with smaller mean vector powers into a single one. The resulted two groups are further classified into 3 classes by their vector powers, respectively. Then each group-class is vector quantized by using its own code book. The lowest subimage is coded by 2D-DPCM. This scheme gives superior coding characteristic than that of 3 directional-power classified coding in the range of rate near 0.5 bpp. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image data compression / wavelet transform / sub-band coding / vector quantization / 2D-DPCM |
| Paper # | CS95-153,IE95-105 |
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| Conference Information | |
| Committee | CS |
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| Conference Date | 1995/12/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
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| Paper Information | |
| Registration To | Communication Systems (CS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wave1et image coding using directional power classified vector quantization |
| Sub Title (in English) | |
| Keyword(1) | image data compression |
| Keyword(2) | wavelet transform |
| Keyword(3) | sub-band coding |
| Keyword(4) | vector quantization |
| Keyword(5) | 2D-DPCM |
| 1st Author's Name | Mchiaki KATO |
| 1st Author's Affiliation | Kanazawa Institute of Technology() |
| 2nd Author's Name | Shuitsu MATSUMURA |
| 2nd Author's Affiliation | Kanazawa Institute of Technology |
| 3rd Author's Name | Tsuyoshi TAKEBE |
| 3rd Author's Affiliation | Kanazawa Institute of Technology |
| Date | 1995/12/15 |
| Paper # | CS95-153,IE95-105 |
| Volume (vol) | vol.95 |
| Number (no) | 436 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |