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.


Supported by : 한국연구재단


  1. T. Wiegand, G.J. Sullivan, G. Bjntegaard, A. Luthra, "Overview of the H.264/AVC video coding standard," IEEE Transactions on Circuits and Systems for Video Technology, Vol. 13, Issue 7, Jul. 2003, pp. 560-576
  2. N. Kamaci, Y. Altunbasak, "Performance comparison of the emerging H.264 video coding standard with the existing standards," Proceedings. 2003 International Conference on Multimedia and Expo, Vol. 1, July 2003, pp. I-345-8 vol. 1
  3. J. Ostermann, J. Bormans, P. List, D. Marpe, M. Narroschke, F. Pereira, T. Stockhammer, T. Wedi, "Video coding with H.264/AVC: tools, performance, and complexity," IEEE Circuits and Systems Magazine, Vol. 4, Issue 1, First Quarter 2004, pp. 7-28
  4. G. Nageswara Rao, Prasad RSV, D. Jaya Chandra and Srividya Narayanan, "Real-Time Software Implementation of H.264 Baseline Profile Video Encoder for Mobile and Handheld Devices," 2006 IEEE International Conference on Acoustics, Speech and Signal Processing, Vol. 5, May 2006, pp. V-457-V-460
  5. Iain E. G. Richardson, "H.264 and MPEG-4 Video Compression: Video Coding for Next Generation Multimedia," John Wiley&Sons Ltd, ISBN: 0-470-84837-5, 2003
  6. Tsu-Ming Liu, Ting-An Lin, Sheng-Zen Wang, Chen-Yi Lee, "A low-power dual-mode video decoder for mobile applications," IEEE Communications Magazine, Vol. 44, Issue 8, Aug. 2006, pp. 119-126
  7. B. Stabernack, H. Hubert, K.-I. Wels, "A H.264 video coprocessor for mobile DVB-H terminals," International Conference on Consumer Electronics 2006, Digest of Tech. Papers, Jan. 2006 pp. 89-90
  8. K. Udyawar, A. Ramachandran, S. Shandilya, "Motion estimation and mode decision for low power H.264," International Conference on Consumer Electronics 2006, Digest of Tech. Papers, Jan. 2006, pp. 31-32
  9. JVT(Joint Video Meeting)
  10. Meritech co.,