H.264 to MPEG-2 Transcoding considering Distance of Motion Vectors 


Vol. 35,  No. 5, pp. 454-463, May  2010


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  Abstract

After the efficiency of H.264 video compression has been announced, it replaced MPEG-2 standard in several applications. So transcoding methods of MPEG-2 to H.264 have been studying because there are variety devices and contents followed by MPEG-2. Although H.264 supported various service such as IPTV, DMB, digital broadcasting etc, but users using MPEG-2 devices cannot accessible to them. This paper propose H.264 to MPEG-2 transcoding for users of MPEG-2 devices without displacement H.264. The proposed method predicted a motion vector for MPEG-2 encoder after it extracted from motion vectors of variable blocks in H.264 to improve processing time. Also it predicted a optimal motion vector using modified boundary matching algorithm after grasped a special character for boundary and background of object. The experimental results from proposed method show a considerable reduction in processing time, as much as 68% averagely, with a small objective quality reduction in PSNR.

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  Cite this article

[IEEE Style]

N. Son, M. Jung, S. Lee, "H.264 to MPEG-2 Transcoding considering Distance of Motion Vectors," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 5, pp. 454-463, 2010. DOI: .

[ACM Style]

Nam-rye Son, Min-A Jung, and Sung-ro Lee. 2010. H.264 to MPEG-2 Transcoding considering Distance of Motion Vectors. The Journal of Korean Institute of Communications and Information Sciences, 35, 5, (2010), 454-463. DOI: .

[KICS Style]

Nam-rye Son, Min-A Jung, Sung-ro Lee, "H.264 to MPEG-2 Transcoding considering Distance of Motion Vectors," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 5, pp. 454-463, 5. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880