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24 September 2007 Compressed-domain motion detection for efficient and error-resilient MPEG-2 to H.264 transcoding
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In this paper, a novel compressed-domain motion detection technique, operating on MPEG-2-encoded video, is combined with H.264 flexible macroblock ordering (FMO) to achieve efficient, error-resilient MPEG-2 to H.264 transcoding. The proposed motion detection technique first extracts the motion information from the MPEG-2-encoded bit-stream. Starting from this information, moving regions are detected using a region growing approach. The macroblocks in these moving regions are subsequently encoded separately from those in background regions using FMO. This can be used to increase error resilience and/or to realize additional bit-rate savings compared to traditional transcoding.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jan Lievens, Peter Lambert, Dieter Van de Walle, Freya Dawoud, Joeri Barbarien, Rik Van de Walle, and Peter Schelkens "Compressed-domain motion detection for efficient and error-resilient MPEG-2 to H.264 transcoding", Proc. SPIE 6696, Applications of Digital Image Processing XXX, 669609 (24 September 2007);


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