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Coding modes-based frame skip avoidance scheme for low bit rate video coding
- 作者：Hui Yuan (1)
Ju Liu (1) (3)
Jiangtao Ren (2)
Yujun Li (3)
- 关键词：Rate control ; Frame skip ; Video coding ; Normalized mode affection factor ; H.264/AVC
- 刊名：Journal of Real-Time Image Processing
- 出版年：2014
- 出版时间：December 2014
- 年：2014
- 卷：9
- 期：4
- 页码：609-619
- 全文大小：373 KB
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19. Lee, H.J., Chiang, T., Zhang, Y.Q.: Scalable rate control for MPEG-4 video. IEEE Trans. Circuits Syst. Video Technol. 10(6), 878-94 (2000) - 作者单位：Hui Yuan (1)
Ju Liu (1) (3)
Jiangtao Ren (2)
Yujun Li (3)
1. School of Information Science and Engineering, Shandong University, Ji’nan, 250100, China
3. Hisense State Key Laboratory of Digital Multi-Media Technology Co. Ltd., Qingdao, 266061, China
2. State Key Laboratory of ISN, Xidian University, Xi’an, 710071, China
- ISSN：1861-8219
文摘
Frame skips are commonly applied in the rate control procedure of low bit rate video coding. In order to reduce the probability of frame skips, a frame skip avoidance scheme based on the analysis of coding modes is proposed. A measure named normalized mode affection factor (NMAF) is proposed so as to analyze the affection of each coding mode on the quality and bit rate of videos. Based on the NMAF, a frame skip avoidance scheme is designed considering the buffer fullness. Experimental results demonstrate that the proposed scheme could reduce the number of skipped frames greatly; meanwhile the rate distortion performance could also be improved a lot. Compared with JVT-W042, an average 0.45?dB PSNR could be achieved at the same coding bit rate and the average number of skipped frames could be reduced as 11.44 for all the tested video sequences.
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