A Mesh-Interpolation Scheme for Very-Low Bitrate Coding of Video Sequences

摘要

A very-low bitrate video codec is proposed that processes an image sequence as a two-component information source. The main difference from state-of-the-art approaches lies in the use of a 3D spatio-temporal interpolation; it is based on a non-uniform sampling where frames are processed as 3D blocks, so achieving an adaptive allocation for the information to be transmitted. Residuals are then compressed through a transform coder. Such a method allows for a concurrent and effi- cient exploitation of intra- and inter-frame correlations; experimental results show a good fidelity in decoded sequences, both in terms of subjective and objective quality.