| Presentation | 1996/7/26 Fast Adaptive Multialphabet Arithmetic Coding Toshihiko Okamura, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One disadvatage of adaptive multialphabet arithmetic coding is that it runs slowly. To improve its speed, we keep the total frequency an integral power of 2 and replace division in coding to simple bit shift. To do this, the total frequency must be constant. We update the cumulative frequency at short intervals, not per input symbol, to make the above improvement effective. Experimental results show that the encoding time of our method is 20% smaller than one of usual adaptive multialphabet arithmetic coding, while its compression ratio is typically only 0.5% worse. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | arithmetic coding / cumulative frequency |
| Paper # | IT96-31 |
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| Conference Information | |
| Committee | IT |
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| Conference Date | 1996/7/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Information Theory (IT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fast Adaptive Multialphabet Arithmetic Coding |
| Sub Title (in English) | |
| Keyword(1) | arithmetic coding |
| Keyword(2) | cumulative frequency |
| 1st Author's Name | Toshihiko Okamura |
| 1st Author's Affiliation | C&C Res. Labs., NEC Corp.() |
| Date | 1996/7/26 |
| Paper # | IT96-31 |
| Volume (vol) | vol.96 |
| Number (no) | 203 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |