Optimal Parameter Selection of H.264 Encoder For Mobile Devices

모바일 기기를 위한 H.264 인코더의 최적 매개변수의 결정

  • Ryu, Minhee (Department of Computer Science and Engineering, Chungnam National University) ;
  • Kim, Hyungshin (Department of Computer Science and Engineering, Chungnam National University)
  • 류민희 (충남대학교 컴퓨터공학과) ;
  • 김형신 (충남대학교 컴퓨터공학과)
  • Received : 2012.07.20
  • Accepted : 2012.10.11
  • Published : 2012.10.31


As many mobile devices such as smart phones and tablets are widely spread, optimized mobile video encoder used during video recording application is needed. In this paper, we implemented H.264/AVC base profile video encoder on a mobile device and empirically optimized control parameters of the encoder. As the experiment, we more than 100 test cases were designed with varying Lagrangian optimization, Hadamard Transform, search range, I-frame period, and reference frames. During the experiment, we measured picture quality, bit-rate, encoding time, motion estimation time, and power consumption. From the result, we can determine optimal values for the H.264 control parameters.


Video encoder;Mobile video;H.264;Encoder optimization;Energy consumption


Supported by : 한국연구재단


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