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Automatic two-layer video object plane generation scheme and its application to MPEG-4 video coding

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4 Author(s)
Jinzenji, K. ; NTT Cyber Space Labs., Kanagawa, Japan ; Okada, S. ; Watanabe, H. ; Kobayashi, N.

The new video coding standard MPEG-4 provides content-based functionality and low bit-rate video compression. We focused on the “sprite coding” supported MPEG-4 Version 1 Main profile in order to achieve “VHS quality video on 2B (128 kpbs)” for narrow-band transmission such as the Internet. Automatic VOP (Video Object Plane) generation technologies are being studied as one of the most important issues of MPEG-4 object coding. This paper proposes a two-layer VOP generation scheme with some core algorithms such as GME (Global Motion Estimation), foreground moving object extraction, and background sprite generation. This paper also describes a shape information reduction method for foreground objects. Using this method, shape information is compressed by 90%. Experiments are conducted on VOP generation and video coding with MPEG-4. Coding efficiency is 3-4 times higher than that of typical existing video coding schemes at the same subjective image quality

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Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on  (Volume:3 )

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