| 基于门限自适应的H.264帧间模式快速选择算法 |
| |
| 引用本文： | 尹明,王宏远. 基于门限自适应的H.264帧间模式快速选择算法[J]. 系统工程与电子技术, 2006, 28(6): 804-806 |
| |
| 作者姓名： | 尹明 王宏远 |
| |
| 作者单位： | 华中科技大学电信系,湖北,武汉,430074 |
| |
| 摘 要： | 针对H.264/AVC运用基于率失真优化的全计算模式决策,引入巨大的计算复杂度,提出一种基于门限自适应的帧间宏块模式快速选择算法。该算法利用视频序列图像帧间时空域相关性,并运用动态门限来提高判决准确度。实验仿真表明,该算法在无明显降低编码质量的情况下,提高了编码速度,平均缩短编码时间89.94%。
|
| 关 键 词： | 时空域 门限自适应 相关性 模式选择 |
| 文章编号： | 1001-506X(2006)06-0804-03 |
| 修稿时间： | 2005-03-14 |
Fast intermode decision for H. 264 based on adaptive threshold |
| |
| YIN Ming,WANG Hong-yuan. Fast intermode decision for H. 264 based on adaptive threshold[J]. System Engineering and Electronics, 2006, 28(6): 804-806 |
| |
| Authors: | YIN Ming WANG Hong-yuan |
| |
| Abstract: | H.264/AVC achieves high coding efficiency due to variable-size block compensation,meanwhile a full mode decision based on rate-distortion optimization brings about tremendous computational complexity.To overcome this,a fast mode decision for inter-macroblock is proposed with adaptive threshold by utilizing the spatio-temporal correlation of the frames in video sequences.The simulation results show that the proposed algorithm reduces the encoding time by 89.94% on average without consideration of performance degradation. |
| |
| Keywords: | spatio-temporal field adaptive threshold correlation mode decision |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
