| Presentation | 2006-02-21 High-Quality Image Compression with Region-Based Filtering Takahiro YAMAURA, Miki HASEYAMA, Hideo KITAJIMA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, MPEG-2 is widely used in many fields such as DVD, digital broadcasting, etc. The video coding technique achieves efficient compression by using block-based DCT and motion compensation. Nevertheless, there is a problem that blocking and ringing artifacts appear in the decoded images at low bit rates. Therefore, we have proposed a method utilizes a two-dimensional FIR filter to reduce these artifacts. The method designs the filter to minimize the error between the original image and the coded image for each frames, and its coefficients are added into the bitstream. This paper proposes a method of region segmentation using the decoded images and filter design for each regions. By applying the filters to the decoded image, the proposed method improves the decoded video quality. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | blocking artifact / ringing artifact / MPEG-2 / two-dimensional FIR filter / region segmentation |
| Paper # | ITS2005-94,IE2005-301 |
| Date of Issue |
| Conference Information | |
| Committee | ITS |
|---|---|
| Conference Date | 2006/2/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-Quality Image Compression with Region-Based Filtering |
| Sub Title (in English) | |
| Keyword(1) | blocking artifact |
| Keyword(2) | ringing artifact |
| Keyword(3) | MPEG-2 |
| Keyword(4) | two-dimensional FIR filter |
| Keyword(5) | region segmentation |
| 1st Author's Name | Takahiro YAMAURA |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Miki HASEYAMA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Hideo KITAJIMA |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2006-02-21 |
| Paper # | ITS2005-94,IE2005-301 |
| Volume (vol) | vol.105 |
| Number (no) | 609 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |