Science of Continuous Media Application Design in Wireless Networks of Mobile Devices
BROADNETS '04 Proceedings of the First International Conference on Broadband Networks
Novel MPEG-4 video cross-layer algorithm in wireless networks
International Journal of Computational Science and Engineering
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Image sequences are mostly coded by motion compensated predictive coding. The motion vector field to be transmitted as side information is typically predictive coded. In this paper a new approach is presented for coding of motion vector fields at low bit rates (64 kbit/s) more efficiently by applying a pyramid decomposition, which is encoded using zero-trees. The embedded coding of the pyramid allows for progressive transmission of the motion vectors and is well suited for source adaptive channel coding.