| 基于H.264空时SVC编码的快速模式决策算法 |
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| 引用本文： | 杨大伟,赵旦峰,战滨. 基于H.264空时SVC编码的快速模式决策算法[J]. 吉林大学学报(工学版), 2009, 0(Z2) |
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| 作者姓名： | 杨大伟 赵旦峰 战滨 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院;英国赫特福德大学电子工程系; |
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| 基金项目： | 黑龙江省自然科学基金项目(F200828) |
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| 摘 要： | 提出一种简单可行的快速模式决策算法,该算法利用空域和时域分级视频编码的宏块模式相关特性,选取参考帧宏块中率失真代价较小的一部分已用模式作为当前宏块的候选模式,使得增强层的运动预测计算量大大降低。实验结果表明,该算法能够在峰值信噪比损失不大的情况下,有效地减少编码时间。
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| 关 键 词： | 通信技术 分级视频编码 快速模式选择 自适应层间预测 |
Fast mode decision algorithm within H.264 spatial and temporal scalable video coding |
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| YANG Da-wei,ZHAO Dan-feng,ZHAN Bin. Fast mode decision algorithm within H.264 spatial and temporal scalable video coding[J]. Journal of Jilin University:Eng and Technol Ed, 2009, 0(Z2) |
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| Authors: | YANG Da-wei ZHAO Dan-feng ZHAN Bin |
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| Affiliation: | 1.College of Information and Communication Engineering;Harbin Engineering University;Harbin 150001;China;2.School of ECEE;University of Hertfordshire;Hertfordshire AL10 9AB;England |
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| Abstract: | By exploiting the macroblock correlation in spatial and temporal scalable video coding,a fast mode decision algorithm was proposed.It chooses a part of the used search modes from the co-located reference macroblocks to compose the candidate group for the current macroblock.This will extremely reduce the calculation amount of motion estimation in enhancement layers.According to the experimental results,this algorithm decreases the encoding time with the negligible coding loss and bit-rate increases. |
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| Keywords: | communication scalable video coding fast mode decision adaptive inter-layer prediction |
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