Abstract
In this paper, a low power parallel surveillance video encoding system based on joint power-speed scheduling is proposed. The relative relationships among the CPU statuses, total power consumption and encoding speed are analyzed and modeled for multi-core processors. Based on the power directional graph and the relative encoding speed model, the working statuses of the cores are controlled jointly adapting to video encoding workload to minimize the total power consumption. It provides more than 20% power reduction compared with the latest existing system without a penalty on the encoding speed.
Original language | English |
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Title of host publication | 2011 IEEE Visual Communications and Image Processing, VCIP 2011 |
DOIs | |
Publication status | Published - 2011 |
Event | 2011 IEEE Visual Communications and Image Processing, VCIP 2011 - Tainan Duration: 2011 Nov 6 → 2011 Nov 9 |
Other
Other | 2011 IEEE Visual Communications and Image Processing, VCIP 2011 |
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City | Tainan |
Period | 11/11/6 → 11/11/9 |
Keywords
- DVFS
- H.264/AVC
- Joint power-speed scheduling
- multicore platform
- parallel encoding
- video encoding
ASJC Scopus subject areas
- Computer Vision and Pattern Recognition