| Presentation | 2015-12-03 A JPEG-XT encoder considering effects of quantization error Ryo Suzuki, Toshiyuki Dobashi, Osamu Watanabe, Hitoshi Kiya, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A new standard referred to as JPEG XT has been designing to provide coded data for HDR images. JPEG XT coded data contains two layers: the base-layer for tone-mapped LDR version of an HDR image and the enhancement layer. The legacy JPEG decoder can understand the base-layer of JPEG XT coded data because it has the same codestream syntax as the legacy JPEG. In this study,it is firstly pointed out that there is a mismatch on the handling of the quantization error between the normative encoder and the standard decoder. Next,to avoid the problem, a improved encoder structure with consideration of the mismatch is proposed. The experimental results demonstrate that the proposed structure can give better coding performances than those of the normative encoder, while keeping compatibility with the JPEG XT decoder. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | JPEG XT / high dynamic range / coding |
| Paper # | SIS2015-34 |
| Date of Issue | 2015-11-26 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2015/12/3(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Matsuya-sensen (Awara city, Fukui) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | SoC, Related to RFID, etc. |
| Chair | Mitsuji Muneyasu(Kansai Univ.) |
| Vice Chair | Hirokazu Tanaka(Hiroshima City Univ.) / Takayuki Nakachi(NTT) |
| Secretary | Hirokazu Tanaka(Nagoya City Univ.) / Takayuki Nakachi(Toshiba) |
| Assistant | Hiroyuki Tsuji(Kanagawa Inst. of Tech.) / Hakaru Tamukoh(Kyushu Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A JPEG-XT encoder considering effects of quantization error |
| Sub Title (in English) | |
| Keyword(1) | JPEG XT |
| Keyword(2) | high dynamic range |
| Keyword(3) | coding |
| 1st Author's Name | Ryo Suzuki |
| 1st Author's Affiliation | Tokyo Metropolitan University(TMU) |
| 2nd Author's Name | Toshiyuki Dobashi |
| 2nd Author's Affiliation | Tokyo Metropolitan University(TMU) |
| 3rd Author's Name | Osamu Watanabe |
| 3rd Author's Affiliation | Takushoku University(TU) |
| 4th Author's Name | Hitoshi Kiya |
| 4th Author's Affiliation | Tokyo Metropolitan University(TMU) |
| Date | 2015-12-03 |
| Paper # | SIS2015-34 |
| Volume (vol) | vol.115 |
| Number (no) | SIS-348 |
| Page | pp.pp.29-34(SIS), |
| #Pages | 6 |
| Date of Issue | 2015-11-26 (SIS) |