24 September 2007 Compressed-domain motion detection for efficient and error-resilient MPEG-2 to H.264 transcoding
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Abstract
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.
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Jan Lievens, Peter Lambert, Dieter Van de Walle, Freya Dawoud, Joeri Barbarien, Rik Van de Walle, 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); doi: 10.1117/12.732081; https://doi.org/10.1117/12.732081
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