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This paper concentrates on the bidirectional motion estimation problem for applications at very low bit rate. The missing frames in the original video sequence are predicted by the decoder using only the received frames with not additional information. The same selected moving objects on each decoded frames, are initially meshed from quadrilateral blocks which are then deformed using specific warping...
To overcome these drawbacks, a new bidirectional motion estimation algorithm for videoconferencing application at very low bit rate is proposed. The approach is based on spatio-temporal spline interpolation. The proposed algorithm processes as follows. Some frames in the original video sequence are purposely missed. Afterwards, these frames are predicted by the decoder side using only the transmitted...
The performance of the most recent video coding standards is obtained at the price of a high computational cost. This cost is essentially due to the sophisticated motion-compensated estimation methods developed during these last years. In videoconferencing applications, we show that it is possible to replace the motion-compensated estimation of the B and/or P frames in the video coder H.264/AVC by...
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