| Presentation | 2002/12/10 A Study of Video Quality Improvement by using Region of Interest Tracking Kenta MATSUMURA, Masakazu MORIMOTO, Kensaku FUJII, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To improve subjective image quality, preferred ROI(Region of Interest) coding has widely been studied. However, in mobile multimedia communication systems, it is very expensive to extract ROI from each video frames. In this paper, we employ MIPEG-4 video object coding to realize preferred ROI coding, ROI object is encoded at high-quality to improve subjective video quality and background region is encoded at low-quality to improve coding efficiency. Here, we use ROI tracking method and simplified ROI shape coding to improve coding efficiency and reduce tracking difficulty. Simulation results show that block coding of ROI shape can improve coding efficiency, and results of subjective validation test show that it does not disturb reconstructed video quality. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Region Tracking / MPEG-4 / Region of Interest / Hierarchical Coding |
| Paper # | IE2002-133 |
| Date of Issue |
| Conference Information | |
| Committee | IE |
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| Conference Date | 2002/12/10(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 | 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 of Video Quality Improvement by using Region of Interest Tracking |
| Sub Title (in English) | |
| Keyword(1) | Region Tracking |
| Keyword(2) | MPEG-4 |
| Keyword(3) | Region of Interest |
| Keyword(4) | Hierarchical Coding |
| 1st Author's Name | Kenta MATSUMURA |
| 1st Author's Affiliation | Himeji Inst.of Tech., Dept of Comp. Eng() |
| 2nd Author's Name | Masakazu MORIMOTO |
| 2nd Author's Affiliation | Himeji Inst.of Tech., Dept of Comp. Eng |
| 3rd Author's Name | Kensaku FUJII |
| 3rd Author's Affiliation | Himeji Inst.of Tech., Dept of Comp. Eng |
| Date | 2002/12/10 |
| Paper # | IE2002-133 |
| Volume (vol) | vol.102 |
| Number (no) | 519 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |