| 基于动态电压调节的低功耗视频解码技术研究 |
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| 引用本文： | 钟伟军,刘明业,彭刚,阎光伟.基于动态电压调节的低功耗视频解码技术研究[J].计算机工程与应用,2005,41(23):115-117. |
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| 作者姓名： | 钟伟军 刘明业 彭刚 阎光伟 |
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| 作者单位： | 北京理工大学信息科学技术学院,北京,100081;北京理工大学信息科学技术学院,北京,100081;厦门大学计算机与信息工程学院,福建,厦门,361005;华北电力大学(北京)计算机系,北京,102206 |
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| 摘 要： | 讨论在嵌入式系统中使用动态电压调节技术降低视频解码功耗。提出一种基于动态电压调节的低功耗解码技术。该方法采用移动平均法预测帧的解码时间,依据预测的结果动态地调节解码过程中微处理器的工作电压,降低能量消耗。实验结果表明,基于动态电压调节的视频解码器比常规解码器减少10%￣30%的能量消耗。
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| 关 键 词： | 动态电压调节 低功耗 移动平均 视频解码器 |
| 文章编号： | 1002-8331-（2005）23-0115-03 |
| 收稿时间： | 2005年4月 |
| 修稿时间： | 2005年4月 |
Study of Low-Power Video Decoding Based on Dynamic Voltage Scaling |
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| Zhong Weijun,Liu Mingye,Peng Gang,Yan Guangwei.Study of Low-Power Video Decoding Based on Dynamic Voltage Scaling[J].Computer Engineering and Applications,2005,41(23):115-117. |
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| Authors: | Zhong Weijun Liu Mingye Peng Gang Yan Guangwei |
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| Abstract: | Dynamic voltage scaling is introduced to video decoding in the embedded system in order to reduce the power consumption.A novel low-power video decoding based on DVS is proposed.In this scheme,decoding time of each frame is predicted using moving-average method before the frame is decoded.The voltage of CPU to decoding is switched dynamically with predictive results in order to reduce energy consumption.The experimental results show that the low-power video decoder with DVS saves 10%～30% energy compared with the conventional decoder without DVS. |
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| Keywords: | dynamic voltage scaling low power moving-average video decoder |
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