| Presentation | 1999/11/18 Optimization of Re-Quantization Parameter for MPEG Transcoding Shinya KADONO, Minoru ETOH, Naokazu YOKOYA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes a macroblock-based optimization technique for quantization parameter selection that reduces re-quantization errors in MPEG transcoding. Having found that the re-quantization with a larger quantization parameter but smaller than the double of the original one should be avoided, we start at choosing the better re-quantization parameter from two alternatives; the original quantization parameter or its double. Furthermore, we investigate a rate distortion model of residual errors in motion compensation over frames. We extend the optimization scheme to enable us to choose the re-quantization parameters from a wider range according to the rate distortion model. The proposed scheme outperforms a non-optimized typical transcoding scheme with 0.5-1dB improvements in PSNR. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MPEG / transcoder / rateconversion / quantization / rate control |
| Paper # | IE99-74 |
| Date of Issue |
| Conference Information | |
| Committee | IE |
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| Conference Date | 1999/11/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimization of Re-Quantization Parameter for MPEG Transcoding |
| Sub Title (in English) | |
| Keyword(1) | MPEG |
| Keyword(2) | transcoder |
| Keyword(3) | rateconversion |
| Keyword(4) | quantization |
| Keyword(5) | rate control |
| 1st Author's Name | Shinya KADONO |
| 1st Author's Affiliation | Multimedia Development Center, Matsushita Electric Industrial Co., Ltd.:Graduate School of Information Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Minoru ETOH |
| 2nd Author's Affiliation | Tokyo Communication System Research Laboratory, Matsushita Electric Industrial Co., Ltd.:Graduate School of Information Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Naokazu YOKOYA |
| 3rd Author's Affiliation | Graduate School of Information Science, Nara Institute of Science and Technology |
| Date | 1999/11/18 |
| Paper # | IE99-74 |
| Volume (vol) | vol.99 |
| Number (no) | 444 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |