Drift-free switching of compressed video bitstreams at predictive frames
文献类型：期刊论文
| 作者 | Sun, XY; Wu, F; Li, SP; Shen, GB; Gao, W |
| 刊名 | IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
 |
| 出版日期 | 2006-05-01 |
| 卷号 | 16期号:5页码:565-576 |
| 关键词 | bitstream switching multiple-bit-rate (MBR) streaming rate-distortion (R-D) optimization SP frame video coding |
| ISSN号 | 1051-8215 |
| DOI | 10.1109/TCSVT.2006.873162 |
| 英文摘要 | Two schemes are proposed to efficiently compress video contents into bitstreams that support drift-free switching at predictive frames. They are inspired by the original SP coding scheme presented in the early H.26L. First, we propose a Flex SP coding scheme in which the prediction signal of the SP frame is directly subtracted from the input without quantization and de-quantization. The decoded video quality of the Flex SP scheme is significantly improved when additional inverse discrete cosine transform (DCT) and post-filter are provided. Then, the Hybrid SP scheme is presented to further improve the quality of the display image, as well as the reconstructed reference, by defining two coding modes for each DCT coefficient. Moreover, a rate-distortion algorithm is proposed to determine the coding mode for each coefficient. The bitstreams generated by the two proposed schemes can be decoded successfully by a decoder that complies with MPEG-4 AVC/H.264. In addition, we also investigate how to choose the quantization parameters for switching. An empirical method is proposed to achieve a good tradeoff between high coding efficiency of SP frames and small size of switching bits. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000237482800001 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/10468]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Sun, XY |
| 作者单位 | 1.Microsoft Res Asia, Beijing 100081, Peoples R China 2.Harbin Inst Technol, Harbin 150001, Peoples R China 3.Chinese Acad Sci, Inst Comp Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, XY,Wu, F,Li, SP,et al. Drift-free switching of compressed video bitstreams at predictive frames[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2006,16(5):565-576. |
| APA | Sun, XY,Wu, F,Li, SP,Shen, GB,&Gao, W.(2006).Drift-free switching of compressed video bitstreams at predictive frames.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,16(5),565-576. |
| MLA | Sun, XY,et al."Drift-free switching of compressed video bitstreams at predictive frames".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 16.5(2006):565-576. |
入库方式： OAI收割
来源：计算技术研究所
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