| Presentation | 2005/12/6 A Study on Coding Method of Vector Representation in Video Compression Kei KAWAMURA, Yuki YAMAMOTO, Hiroshi WATANABE, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Artificial images include a lot of edges and homogeneous tone areas. Mosquito noise and pseudo tone is occurred by the discrete cosine transform and the quantization for such images. It is in H.264/AVC that losing texture and changing edge directions are occurred. We have proposed a still image coding based on vector repre-sentation to provide a solution to the above problems. In this paper, we show the cause of losing texture, and thus, we propose video coding method using vector representation. At first, we examine edge area modeling optimized vector representation. Then, we describe the difference between an input signal and low-frequency-component on edge areas using over-sampling and average filter technique. The proposed method keeps the image quality near edge areas. We confirm the validity of the proposed method through some edge detection experiments. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mosquito noise / edge disappearance / edge model / vector representation / image coding |
| Paper # | CS2005-66,IE2005-121 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2005/12/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | A Study on Coding Method of Vector Representation in Video Compression |
| Sub Title (in English) | |
| Keyword(1) | Mosquito noise |
| Keyword(2) | edge disappearance |
| Keyword(3) | edge model |
| Keyword(4) | vector representation |
| Keyword(5) | image coding |
| 1st Author's Name | Kei KAWAMURA |
| 1st Author's Affiliation | Graduate School of Global Information and Telecommunication Studies, Waseda Univ.() |
| 2nd Author's Name | Yuki YAMAMOTO |
| 2nd Author's Affiliation | Graduate School of Global Information and Telecommunication Studies, Waseda Univ. |
| 3rd Author's Name | Hiroshi WATANABE |
| 3rd Author's Affiliation | Graduate School of Global Information and Telecommunication Studies, Waseda Univ. |
| Date | 2005/12/6 |
| Paper # | CS2005-66,IE2005-121 |
| Volume (vol) | vol.105 |
| Number (no) | 463 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |