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http://dx.doi.org/10.5909/JBE.2009.14.1.3

Transcoding MPEG-2 to H.264/AVC in the GOP Structure Conversion  

Lee, Kang-Jun (Hanyang Univ. Dept. of Electoronics and Computer Engineering)
Ha, Chang-Woo (Hanyang Univ. Dept. of Electoronics and Computer Engineering)
Jeong, Je-Chang (Hanyang Univ. Dept. of Electoronics and Computer Engineering)
Publication Information
Journal of Broadcast Engineering / v.14, no.1, 2009 , pp. 3-14 More about this Journal
Abstract
Currently, H.264/AVC is used in many multimedia applications. Also, The MPEG-2 main profile which supports B pictures for bi-directional motion prediction is widely used in applications such as HDTV and DVD’s. Therefore, transcoding the MPEG-2 main profile to the H.264/AVC baseline is necessary for universal multimedia access. In this transcoding architecture including the GOP structure conversion, the proposed algorithms adopt the adaptive search range selection through the linearity test of a predictive motion vector and adaptive mode selection using the reference region complexity information. The proposed algorithms extremely reduce the computational complexity while maintaining the video quality.
Keywords
Transcoding; MPEG-2; H.264; GOP;
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