| Tian Ling(田玲)②*,Sun Yu**,Zhou Yimin*,Sun Shixin*.[J].高技术通讯(英文),2011,17(4):383~387 |
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| Frame complexity optimized selection for H.264/AVC video coding ① |
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| DOI： |
| 中文关键词: |
| 英文关键词: frame coding complexity, rate control, H.264/AVC, RD model |
| 基金项目: |
| Author Name | Affiliation | | Tian Ling(田玲)②* | | | Sun Yu** | | | Zhou Yimin* | | | Sun Shixin* | |
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| 中文摘要: |
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| 英文摘要: |
| To improve the coding performance of H.264/AVC, this paper proposes a rate control scheme composed of a novel frame complexity optimized selection and a quantization parameter (QP) value computation approach. First, it extracts the frame coding complexity from two rate distortion models, and then introduces five statistic modes to estimate the frame coding complexity. An optimal mode is selected according to the coding efficiency. Finally the paper presents a novel QP calculation method for the H.264/AVC rate control. Experimental results show that the proposed algorithm outperforms the algorithm integrated in the JM model in obtaining precise frame coding complexity, achieving robust buffer control and improving coding quality. And the improving visual quality is high up to 0.90dB for CIF sequences. |
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