Half-Pixel Correction for MPEG-2/H.264 Transcoding (original) (raw)

Abstract

To improve video quality and coding efficiency, H.264/AVC [1] has adopted several newer coding tools such as a 4×4 integer DCT and a method for calculating half pixels than the previous standards. However, these tools require additional work to transcode video content for pre-coded in the previous standards to H.264/AVC in the DCT domain. In this paper, we propose, as far as we know, the first half-pixel correction method for MPEG-2 to H.264 transcoding in the DCT domain. In the proposed method, an MPEG-2 block is added to the correction block obtained from the difference between half-pixel values of the two standards using a DCT reference frame. Experimental results show that the proposed method achieves better quality than the pixel based transcoding method.

The work was supported by Pusan National University Research Grant.

Chapter PDF

Similar content being viewed by others

Keywords

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Wiegand, T., Sullivan, G.J., Bjontegaard, G., Luthra, A.: Overview of the H.264/AVC video coding standard. IEEE Trans. Circuits Syst. Video Technol. 13, 560–576 (2003)
    Article Google Scholar
  2. Ostermann, J., Bormans, J., List, P., Marpe, D., Narroschke, M., Pereira, F., Stockhammer, T., Wedi, T.: Video Coding with H.264/AVC: Tools, Performance, and Complexity. IEEE Circuits Syst. Magazine 4(1), 7–28 (2004)
    Article Google Scholar
  3. Kalva, H.: Issues in H.264/MPEG-2 Video Transcoding. In: Consumer Communications and Networking Conference, CCNC 2004. First IEEE, Los Alamitos (2004)
    Google Scholar
  4. Vetro, A., Christopoulos, C., Sun, H.: Video Transcoding Architectures and Techniques: An Overview. IEEE Signal Processing Magazin 20(2), 18–29 (2003)
    Article Google Scholar
  5. ISO/IEC 13818-2:1995(E) pp. 83–100
    Google Scholar
  6. Richardson, I.E.G.: H.264 and MPEG-4 Video Compression. Wiley, Chichester (2003)
    Book Google Scholar
  7. Cao, G., Lei, Z., Li, J., Georganas, N.D., Zhu, Z.: A Novel DCT Domain Transcoder for Transcoding Video Streams with Half-pixel Motion Vectors. Real-Time Imaging (Elsevier Science) 10(5), 331–337 (2004)
    Article Google Scholar
  8. Shanableh, T., Ghanbari, M.: Hybrid DCT/pixel domain architecture for heterogeneous video transcoding. Signal processing: Image Communication 18, 601–620 (2003)
    Article Google Scholar
  9. Quantization/DCT Conversion Scheme for DCT-domain MPEG-2 to H.264/AVC Transcoding. IEICE Trans. Communication (July 2005) (accepted)
    Google Scholar
  10. http://diml.yonsei.ac.kr/~wizard97/mpeg2/mpeg2v12.zip
  11. http://bs.hhi.de/~suehring/tml/download/old_jm/jm82.zip

Download references

Author information

Authors and Affiliations

  1. Dept. Of Computer Engineering, Pusan National University, Busan, Korea
    Soon-young Kwon, Joo-kyong Lee & Ki-dong Chung

Authors

  1. Soon-young Kwon
    You can also search for this author inPubMed Google Scholar
  2. Joo-kyong Lee
    You can also search for this author inPubMed Google Scholar
  3. Ki-dong Chung
    You can also search for this author inPubMed Google Scholar

Editor information

Editors and Affiliations

  1. Department of Electrical and Electronic Engineering, Piazza d’Armi, University of Cagliari, 09123, Cagliari, Italy
    Fabio Roli
  2. Università di Cagliari,
    Sergio Vitulano

Rights and permissions

© 2005 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Kwon, Sy., Lee, Jk., Chung, Kd. (2005). Half-Pixel Correction for MPEG-2/H.264 Transcoding. In: Roli, F., Vitulano, S. (eds) Image Analysis and Processing – ICIAP 2005. ICIAP 2005. Lecture Notes in Computer Science, vol 3617. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11553595\_71

Download citation

Publish with us