首页> 外文会议>2014 IEEE International Conference on System Science ang Engineering >Efficient frame complexity-based rate control for H.264/AVC intra-frame
【24h】

Efficient frame complexity-based rate control for H.264/AVC intra-frame

机译:H.264 / AVC帧内基于帧复杂度的高效速率控制

获取原文
获取原文并翻译 | 示例

摘要

This paper presents a rate control (RC) scheme for intra-frame coding in H.264/AVC. An adaptive rate-quantization (R-Q) model is proposed for intra-frames by utilizing the average standard deviation (ASD) to measure the content complexity of each intra-frame. The initial QP decision is based on the distribution of the standard deviation (SD) values of macroblocks (MBs) in the initial frame. The scene change is detected with the complexity difference of adjacent frames and the appropriate quantization parameter (QP) is determined for the scene-transition frame. Experimental results show that the proposed RC scheme achieves more accurate rate estimation and maintains the buffer fullness at a lower level than the state of the art, especially for the sequences containing scene changes.
机译:本文提出了一种用于H.264 / AVC中帧内编码的速率控制(RC)方案。通过利用平均标准偏差(ASD)来测量每个帧内的内容复杂度,为帧内提出了一种自适应速率量化(R-Q)模型。初始QP决策基于初始帧中宏块(MB)的标准偏差(SD)值的分布。利用相邻帧的复杂度差异来检测场景变化,并为场景转换帧确定适当的量化参数(QP)。实验结果表明,所提出的RC方案实现了更准确的速率估计,并且将缓冲区充满度保持在比现有技术低的水平,尤其是对于包含场景变化的序列。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号