Half-Pixel Correction for MPEG-2/H.264 Transcoding

  • Soon-young Kwon
  • Joo-kyong Lee
  • Ki-dong Chung
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3617)

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.

Keywords

Video Code Standard Input Block Previous Standard Correction Block Improve Video Quality 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Soon-young Kwon
    • 1
  • Joo-kyong Lee
    • 1
  • Ki-dong Chung
    • 1
  1. 1.Dept. Of Computer EngineeringPusan National UniversityBusanKorea

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