Deutschetelekom Ag

Rakesh Ramachandra

Alexander Raake

Peter List

Bernhard Feiten

Ulf Wuestenhagen

Werner Robitza

Steve Goering

Steve GÖRING

Ulf WÜSTENHAGEN

A method for estimating blockiness in a video frame of transform-based video encoding includes: obtaining a bitstream of a transform coded video signal, the signal being partitioned into video frames and all operations being performed on a per frame basis, wherein coefficients constituting transforms encoded in the bitstream of the video frames are read; averaging the coefficients of the transforms encoded in the bitstream into one averaged transform matrix per transform block size i; generating or making available one weighting matrix per averaged transform of block size i; computing intermediate weighted average transform matrices; processing all members of each weighted and averaged transform matrix into a single value per transform of block size i, to obtain intermediate signals; and computing a single value by weighting values of the intermediate signals according to an area in the respective video frame and adding up the weighted values of the intermediate signals.

System and method to estimate blockiness in transform-based video encoding

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Ilmenau, Germany

Rakesh Ramachandra