| 一种基于H.264 Intra帧的错误隐藏算法 |
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| 引用本文： | 段大高,李文正,莫倩. 一种基于H.264 Intra帧的错误隐藏算法[J]. 通信技术, 2008, 41(4): 168-170 |
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| 作者姓名： | 段大高 李文正 莫倩 |
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| 作者单位： | 北京工商大学计算机学院,北京,100037 |
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| 基金项目： | 北京市科技发展基金 , 北京市科技新星计划项目 |
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| 摘 要： | Intra帧图像对整个视频图像起着非常重要的作用.基于图像局部边缘类型和走向分析,提出一种能提高Intra帧图像质量的错误隐藏算法.首先根据相邻宏块中边缘类型和走向来判断当前出错宏块的边缘类型与走向分成多个小区域,以分块插值恢复数据.对平缓图像,采取时域替代方法恢复数据,既降低算法复杂度,又能保证良好的图像质量.实验结果表明,本算法能有效提高图像的解码质量.
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| 关 键 词： | H.264标准 错误隐藏 帧内预测 错误 隐藏算法 Algorithm Error Concealment Novel 解码质量 结果 实验 算法复杂度 替代方法 图像质量 平缓 恢复数据 插值 小区域 判断 宏块 走向分析 类型 边缘 |
| 文章编号： | 1002-0802(2008)04-0168-03 |
| 修稿时间： | 2007-11-06 |
An Novel Error Concealment Algorithm for H.264 Intra Frame |
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| DUAN Da-gao,LI Wen-zheng,MO Qian. An Novel Error Concealment Algorithm for H.264 Intra Frame[J]. Communications Technology, 2008, 41(4): 168-170 |
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| Authors: | DUAN Da-gao LI Wen-zheng MO Qian |
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| Affiliation: | DUAN Da-gao,LI Wen-zheng,MO Qian(School of Computer Science,Beijing Technology , Business University,Beijing 100037,China) |
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| Abstract: | The quality of intra pictures is very important to the video sequence,which is the basis of predictive pictures subsequently.A novel and effective error concealment algorithm for intra-coded frames is proposed,which utilizes the edge features and directions analysis technique.In the algorithm,the missing macro-blocks are divided into several sub-blocks according to the edge characteristic of the missing macro-blocks,which is achieved through analyzing the neighboring correctly received Macro-blocks,and in e... |
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| Keywords: | H.264 standard error concealment intra frame prediction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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