| Presentation | 2004/1/26 A Study on Tile Size Conversion Transcoder of JPEG 2000 Kiichi HIROMASA, Masayuki HASHIMOTO, Yasuyuki NAKAJIMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, an acceleration method for tile size conversion transcoder of JPEG 2000 is proposed. In JPEG 2000, the original image is partitioned into tiles which are compressed independently in order to reduce memory requirement. We proposed a tile size conversion method of JPEG 2000 image at a gateway in networks. This method is very useful when JPEG 2000 data is transmitted to a limited decoder that has only a small memory. This method converts tile size in DWT coefficients domain. Consequently all the DWT Coefficients are reconstructed by decoding compressed data. Therefore the runtime of decoding-re-encoding DWT coefficients is the most demanding part of this method. We propose an acceleration method for tile size conversion, which is based on selectively decoding-encoding code-blocks. Experimental results show the effectivity of our proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | JPEG 2000 / Transcoder / Tile / Code-block |
| Paper # | ITS2003-49,IE2003-184 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2004/1/26(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Tile Size Conversion Transcoder of JPEG 2000 |
| Sub Title (in English) | |
| Keyword(1) | JPEG 2000 |
| Keyword(2) | Transcoder |
| Keyword(3) | Tile |
| Keyword(4) | Code-block |
| 1st Author's Name | Kiichi HIROMASA |
| 1st Author's Affiliation | Department of Electric Engineering, Graduate School of Engineering, Tokyo University of Science() |
| 2nd Author's Name | Masayuki HASHIMOTO |
| 2nd Author's Affiliation | KDDI R&D Laboratories Inc. |
| 3rd Author's Name | Yasuyuki NAKAJIMA |
| 3rd Author's Affiliation | KDDI R&D Laboratories Inc. |
| Date | 2004/1/26 |
| Paper # | ITS2003-49,IE2003-184 |
| Volume (vol) | vol.103 |
| Number (no) | 639 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |