| Presentation | 2005-03-25 A Motion Compensation Method with Fractional-Pel Accuracy Using Adaptive Interpolation Shinichi NAGASHIMA, Ichiro MATSUDA, Susumu ITOH, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, motion compensation (MC) based on precise motion vectors, typically with half-pel or quarter-pel accuracy, has been commonly used in video coding. In this paper, we propose a new MC method which employs adaptive interpolation filters to compensate various motions more accurately. In this method, plural two-dimensional interpolation filters are designed for each frame, and an appropriate combination of the filter and a motion vector with integer-pel accuracy is determined in each macroblock composed of 16×16 pels. A cost-function used for designing of the above filters is defined as a weighted sum of squared DCT coefficients to improve coding performance of motion-compensated residuals. Simulation results indicate that the proposed MC method provides a coding gain of up to 2 dB in SNR compared with the conventional MC based on motion vectors with half-pel accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Video coding / Motion compensation / Motion vector / Adaptive interpolation filter / DCT coding |
| Paper # | IE2004-230 |
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| Conference Information | |
| Committee | IE |
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| Conference Date | 2005/3/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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 Motion Compensation Method with Fractional-Pel Accuracy Using Adaptive Interpolation |
| Sub Title (in English) | |
| Keyword(1) | Video coding |
| Keyword(2) | Motion compensation |
| Keyword(3) | Motion vector |
| Keyword(4) | Adaptive interpolation filter |
| Keyword(5) | DCT coding |
| 1st Author's Name | Shinichi NAGASHIMA |
| 1st Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science() |
| 2nd Author's Name | Ichiro MATSUDA |
| 2nd Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| 3rd Author's Name | Susumu ITOH |
| 3rd Author's Affiliation | Faculty of Science and Technology, Tokyo University of Science |
| Date | 2005-03-25 |
| Paper # | IE2004-230 |
| Volume (vol) | vol.104 |
| Number (no) | 752 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |