Fuzzy SVM-Based Coding Unit Decision in HEVC
文献类型：期刊论文
| 作者 | Linwei Zhu; Yun Zhang; Sam Kwong; Xu Wang; Tiesong Zhao |
| 刊名 | IEEE Transactions on Broadcasting
 |
| 出版日期 | 2017 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The latest video compression standard, High Efficiency Video Coding (HEVC), has greatly improved the coding efficiency compared to the predecessor H.264/AVC. However, equipped with the quadtree structure of coding tree unit partition and other sophisticated coding tools, HEVC brings a significant increase in the computational complexity. To address this issue, a coding unit (CU) decision method based on fuzzy support vector machine (SVM) is proposed for rate-distortioncomplexity (RDC) optimization, where the process of CU decision is formulated as a cascaded multi-level classification task. The optimal feature set is selected according to a defined misclassification cost and a risk area is introduced for an uncertain classification output. To further improve the RDC performance, different regulation parameters in SVM are adopted and outliers in training samples are eliminated. Additionally, the proposed CU decision method is incorporated into a joint RDC optimization framework, where the width of risk area is adaptively adjusted to allocate flexible computational complexity to different CUs, aiming at minimizing computational complexity under a configurable constraint in terms of RD performance degradation. Experimental results show that the proposed approach can reduce 58.9% and 55.3% computational complexity on average with the values of Bj?nteggard delta peak-signal-to-noise ratio as ?0.075 dB and ?0.085 dB and the values of Bj?ntegaard delta bit rate as 2.859% and 2.671% under low delay P and random access configurations, respectively, which has outperformed the state-of-the-art fast algorithms based on statistical information and machine learning. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/12485]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | IEEE Transactions on Broadcasting |
| 推荐引用方式 GB/T 7714 | Linwei Zhu, Yun Zhang,Sam Kwong,et al. Fuzzy SVM-Based Coding Unit Decision in HEVC[J]. IEEE Transactions on Broadcasting,2017. |
| APA | Linwei Zhu, Yun Zhang,Sam Kwong,Xu Wang,&Tiesong Zhao.(2017).Fuzzy SVM-Based Coding Unit Decision in HEVC.IEEE Transactions on Broadcasting. |
| MLA | Linwei Zhu,et al."Fuzzy SVM-Based Coding Unit Decision in HEVC".IEEE Transactions on Broadcasting (2017). |
入库方式： OAI收割
来源：深圳先进技术研究院
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