| 摘要: |
| 提出了一种基于梯度的帧内候选模式裁剪算法，通过自适应深度划分并利用空间信息来简化帧内预测过程，大大减少了计算复杂度.实验结果显示，所提出的算法对比HM16.7，可以减少35.25%的计算复杂度，且只有极小的编码效率损失. |
| 关键词: 高效率视频编码 高清、超高清视频 快速算法 帧内预测 |
| DOI：10.3969/J.ISSN.1000-5137.2018.02.019 |
| 分类号:TN919.8 |
| 基金项目:国家自然科学基金（61741111）；上海市自然科学基金（15ZR1431500，15ZR1430400） |
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| Gradient-based and intra-frame adaptive depth decision algorithm |
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Shi Zhengcheng1, Zhang Qian1, Jing Ruihai1, Cui Pengtao1, Wang Bin1, Yan Tao2, Huang Jifeng1
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1.The College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China;2.School of Information Science and Technology, Jiujiang University, Jiangxi 332005, China
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| Abstract: |
| To reduce this computational complexity,agradient-based clipping algorithm for intra-frame candidatemode is proposed,which simplifies the intra prediction process by adaptive deep division and spatial information usage.Experimental results show that the proposed algorithm reduces the computational complexity by 35.25% compared with HM16.7 with only mininal loss of coding efficiency. |
| Key words: high efficiency video coding high definition,ultra high definition video fast algorithm intra prediction |
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