Statistical model, analysis and approximation of rate-distortion function in mpeg-4 fgs videos
文献类型：期刊论文
| 作者 | Sun, J; Gao, W; Zhao, DB; Huang, QM |
| 刊名 | Ieee transactions on circuits and systems for video technology
 |
| 出版日期 | 2006-04-01 |
| 卷号 | 16期号:4页码:535-539 |
| 关键词 | Fine granularity scalability (fgs) Mpeg-4 Quantization theory Rate-distortion (r-d) Statistical model |
| ISSN号 | 1051-8215 |
| DOI | 10.1109/tcsvt.2006.871394 |
| 通讯作者 | Sun, j(jsun@jdl.ac.cn) |
| 英文摘要 | In this paper, the generalized gaussian distribution is employed first to model the dct coefficients of image data from mpeg-4 fine-granularity scalability (fgs) frame. then, according to the quantization theory, the distortion-rate function of the generalized gaussian model is analyzed and it is concluded that the derivative of the distortion-rate function first decreases, and then increases up to the boundary of 6.02 as the bit rate increases. for actual fgs coding, the derivative of actual distortion-rate function usually decreases as the rate increases, and then begins to increase slowly at a comparatively high bit rate. finally, based on above observations, a rate-distortion (r-d) model is proposed to approximate the actual distortion-rate function. experiments show that the proposed r-d model is accurate and flexible. |
| WOS关键词 | IMAGES |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Electrical & Electronic |
| 语种 | 英语 |
| WOS记录号 | WOS:000237332000007 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379978 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Sun, J |
| 作者单位 | 1.Chinese Acad Sci, Inst Comp Technol, Grad Sch, Beijing 100080, Peoples R China 2.Sch Chinese Acad Sci, Beijing 100080, Peoples R China 3.Harbin Inst Technol, Dept Comp Sci, Harbin 150001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, J,Gao, W,Zhao, DB,et al. Statistical model, analysis and approximation of rate-distortion function in mpeg-4 fgs videos[J]. Ieee transactions on circuits and systems for video technology,2006,16(4):535-539. |
| APA | Sun, J,Gao, W,Zhao, DB,&Huang, QM.(2006).Statistical model, analysis and approximation of rate-distortion function in mpeg-4 fgs videos.Ieee transactions on circuits and systems for video technology,16(4),535-539. |
| MLA | Sun, J,et al."Statistical model, analysis and approximation of rate-distortion function in mpeg-4 fgs videos".Ieee transactions on circuits and systems for video technology 16.4(2006):535-539. |
入库方式： iSwitch采集
来源：中国科学院大学
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