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Scientific Publications
| Citation key | 1385Krutz2012 |
|---|---|
| Author | Andreas Krutz and Alexander Glantz and Michael Tok and Marko Esche and Thomas Sikora |
| Year | 2012 |
| DOI | 10.1109/TCSVT.2012.2223012 |
| Journal | IEEE Transactions on Circuits and Systems for Video Technology (TCSVT) |
| Month | dec |
| Abstract | Coding artifacts in video codecs can be reduced using several spatial in-loop filters which are part of the emerging video coding standard HEVC. In this paper, we introduce the concept of global motion temporal filtering (GMTF). A theoretical framework for a concept combining the temporal overlapping of several noisy versions of the same signal is introduced. This includes a model of the motion estimation error. As an important result it is shown that an optimum number of frames N for filtering exists. An implementation of the concept based on several versions of the HEVC test model using global motion compensated temporal filtering shows that significant gains can be achieved. |