H.264/SVC 비디오 재생에서 에너지 감소를 위한 최적 품질 관리 기법
Energy-Saving Optimal Quality Management in H.264/SVC Video Playback
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
H.264/SVC 코덱은 한 영상을 여러 개의 계층으로 나누고, 각 계층 별로 양자화 인자 (QP: Quantization Parameters)를 이용해 한 영상 스트림에서의 여러 품질 해상도 레벨을 제공한다. 본 논문에서는 H.264/SVC 미디어 재생기에서의 전력 소모 감소를 위한 CPU 전력 제어 기법을 제안한다. 먼저 QP와 전력 소모간의 상관 관계에 대하여 조사하고, 이후 주어진 에너지 한도 내에서 PSNR값이 최고가 되는 영상 세그먼트들의 품질 해상도 레벨을 선택하도록 하는 새로운 동적 전압 조절 기법을 제안하였다. 본 논문에서 제안하는 기법의 검증을 위해 시뮬레이션을 수행하였으며, 평균 PSNR값이 40dB이상으로 유지될 때 최고 품질 영상 재생 대비 16%에서 최대 29%까지 전력 감소가 발생하는 것을 확인하였다.
Abstract
H.264 scalable video coding (SVC) allows a video to be divided into several layers, controlled by their quantization parameters (QPs), which can be used to provide different fidelity levels within a single stream. We use SVC as the basis of CPU power management scheme for H.264/SVC media players. We first examine the tradeoff between QP value and energy consumption. We then propose a new dynamic voltage scaling (DVS) technique in which the fidelity level of each video segment is selected to achieve the highest peak signal-to-noise ratio (PSNR) possible within a given energy budget. Simulations show that our scheme uses 16% to 29% less energy than full-quality video playback, while maintaining the average PSNR value above 40dB.
참고문헌 (26)
- SVC scalable video coding and its tradeoff between quality, coding efficiency and performance, "A tutorial on H.264", pp.2011, I. Unanue
- H. Aydin, "Dynamic and aggressive scheduling techniques for power-aware real-time systems", Proc. IEEE Symp. Real-Time Syst, 95(105), pp.95~105 (2001)
- A. Eichhorn, "Pick your layers wisely - a quality assessment of H.264 scalable video coding for mobile devices", Proc. IEEE Int. Conf. Communications, 1(6), pp.1~6 (2009)
- K. Flautner, "Vertigo: automatic performance-setting for Linux", Proc. ACM Symp. Oper. Syst. Design and Implementation, 105(116), pp.105~116 (2002)
- M. Fleischmann, "LongRun power management -dynamic power management for Crusoe processors" (2001), Whitepaper, Transmeta Corp
- H. Lee, "Luminance scalable coding using H.264", AVC SVC extensions for mobile video applications, 2008, pp.1025(1028), 1025~1028
- Y. Huang, "Using offline bitstream analysis for power-aware video decoding in portable devices", Proc. ACM Multimedia Conf, 299(302), pp.299~302 (2005)
- J. Lee, "Subjective evaluation of scalable video coding for content distribution", Proc. ACM Multimedia Conf, 65(72), pp.65~72 (2010)
- M. Marinoni, "Elastic DVS management in processors with discrete voltage", frequency modes, 2007, pp.3, 51~62
- P. Ni, "Frequent layer switching for perceived quality improvements of coarse-grained scalable video", Proc. IEEE Multimedia Syst. T, 16, pp.171~182 (2010)
- P. Pillai, "Real-time dynamic voltage scaling for low-power embedded operating systems", ACM Symp. Oper. Syst. Princ, 89(102), pp.89~102 (2001)
- J. Lee, "Applicationsupport particle filter for dynamic voltage scaling of multimedia applications", Proc. IEEE Trans. Computers, 61(9), pp.1256~1269 (2012)
- H. Schwarz, "Overview of the scalable video coding extension of the H.264", AVC standard, 2007, pp.17, 1103~1120
- E. Seo, "TSB: A DVS algorithm with quick response for general purpose operating systems", Syst. Archit. J, 54, pp.1~ (2008)
- R. Urunuela, "Energy adaptation for multimedia information kiosks", ACM & IEEE Conf. Embedded Software, 223(232), pp.223~232 (2006)
- W. Yuan, "GRACE-1: Crosslayer adaptation for multimedia quality and battery energy", IEEE Trans. Mobile Computing, 5, pp.799~815 (2006)
- S. Xiang, "Adaptive scalable video streaming in wireless networks", Proc. ACM Multimedia Syst. Conf, 167(172), pp.167~172 (2012)
- X. Liu, "Chameleon: Application-Level Power Management", IEEE Trans. Mobile Computing, 7, pp.995~1010 (2008)
- X. Ji, "Scheduling and resource allocation for SVC streaming over OFDM downlink systems", IEEE Trans. Circuits Syst. Video Technol, 19, pp.1549~1555 (2009)
- Y. Guo, "A hybrid DVS scheme for interactive 3D games", Proc. IEEE Conf. Real-time and Embedded Technol. And Applications, 3(12), pp.3~12 (2008)
- A. Yang, "Aggressive dynamic voltage scaling for energy-aware video playback based on decoding time estimation", Proc. ACM Embedded Software Conf, 1(10), pp.1~10 (2009)
- W. Yuan, "Energy-efficient CPU scheduling for multimedia applications", ACM Trans. Comput. Syst, 24, pp.292~331 (2006)
- W. Yuan, "Practical voltage scaling for mobile multimedia devices", Proc. ACM Multimedia Conf, 924(931), pp.924~931 (2004)
- J. Cho, "A combined approach for QoS-guaranteed and low-power video decoding", IEEE Trans. Consum. Electron, 57(2), pp.651~657 (2011)
- S. Lee, "Selective frame prefetching for reducing disk energy consumption in scalable video coding (SVC) media players", IEEE Trans. Consum. Electron, 58(2), pp.1~ (2012)
- J. Lee, "Scalable ROI algorithm for H.264", SVC-based video streaming, 2011, pp.57(2), 882~887