| Presentation | 2016-05-10 A Optimization for HEVC Compression Algorithm of the Light-field Video Takamasa Mitani, Satoshi Shimaya, Yuttakon Yuttakonkit, Yasuhiko Nakashima, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A light field image is a type of images that can generate the refocus images and depth information aftershooting. Mainly, There are two image types which realize the light-field imges, so we treats the one of the type thatthe light-field images consists of the many small circle images. Assuming that light-field images will be broadcastedon the next television infrastructure, this movies will be encoded in HEVC. so, We researched the properties of theencoding process of the the light-field images. We found that the depth of CTU splitting are prone to be deeper atthe high brightness area in the scene, but in some case, this deep CTU splitting is inefficiency. so we optimized theencoding process, in most effective case, we achieved that the process speed got 150% faster than original process, but bit generation increase is within 2.34% and PSNR drops is -0.59 dB. Moreover, to reduce the drop of the imagequality, We applied the median-blur filter and edge-detection filter to the light-field images, we achieved that theprocess speed got 16% faster than original process, the bit generation increase is within 0.76% and PSNR drops canbe suppressed to -0.28dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 4D-movie / Light-field-movie / HEVC |
| Paper # | CPSY2016-6,DC2016-6 |
| Date of Issue | 2016-05-02 (CPSY, DC) |
| Conference Information | |
| Committee | CPSY / DC / IPSJ-ARC |
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| Conference Date | 2016/5/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Unaduki Suginoi Hotel |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Dependable Computing Systems, etc. (HotSPA: Hot SPring Annual meeting) |
| Chair | Yasuhiko Nakashima(NAIST) / Nobuyasu Kanekawa(Hitachi) / Masahiro Goshima(NII) |
| Vice Chair | Koji Nakano(Hiroshima Univ.) / Hidetsugu Irie(Univ. of Tokyo) / Michiko Inoue(NAIST) |
| Secretary | Koji Nakano(Fujitsu Labs.) / Hidetsugu Irie(NII) / Michiko Inoue(RTRI) / (Kyoto Sangyo Univ.) |
| Assistant | Shinya Takameda(NAIST) / Takeshi Ohkawa(Utsunomiya Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Computer Systems / Technical Committee on Dependable Computing / Special Interest Group on System Architecture |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Optimization for HEVC Compression Algorithm of the Light-field Video |
| Sub Title (in English) | |
| Keyword(1) | 4D-movie |
| Keyword(2) | Light-field-movie |
| Keyword(3) | HEVC |
| 1st Author's Name | Takamasa Mitani |
| 1st Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 2nd Author's Name | Satoshi Shimaya |
| 2nd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 3rd Author's Name | Yuttakon Yuttakonkit |
| 3rd Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| 4th Author's Name | Yasuhiko Nakashima |
| 4th Author's Affiliation | Nara Institute of Science and Technology(NAIST) |
| Date | 2016-05-10 |
| Paper # | CPSY2016-6,DC2016-6 |
| Volume (vol) | vol.116 |
| Number (no) | CPSY-19,DC-20 |
| Page | pp.pp.41-46(CPSY), pp.41-46(DC), |
| #Pages | 6 |
| Date of Issue | 2016-05-02 (CPSY, DC) |