MPEG-21 digital item adaptation by applying perceived motion energy to H.264 video

The new MPEG-21 standard defines a multimedia framework to enable transparent and augmented use of multimedia resources across heterogeneous networks and devices used by different communities. In this paper, we incorporated the perceived motion energy (PME) model into the proposed MPEG-21 digital item adaptation framework for frame dropping in H.264 encoded video adaptation. There are two advantages of this work, one is the use of PME model to reduce the viewer's perceived motion jitter due to frame dropping to a minimum. The other is the adaptation nodes can easily apply frame dropping operations without knowledge of detailed encoding syntax of H.264 videos.