Conference/ProceedingsProceedings of the 18th IEEE International Conference on Image Processing (IEEE ICIP2011)
Start date11.09.2011
End date14.09.2011
AddressBrussels, Belgium
Author(s)Marko Esche, Andreas Krutz, Alexander Glantz, Thomas Sikora
TitleTemporal trajectory filtering for bi-directional predicted frames
AbstractIn this work the application of a temporal in-loop filtering approach for
B-frames in video compression based on the Temporal Trajectory Filter (TTF)
is investigated. The TTF constructs temporal pixel trajectories for
individual image points in the P-frames of a video sequence, which can be
utilized to improve the quality of the reconstructed frames used for
prediction. It is shown, how this concept can be adapted to B-frames
despite the fact that these already use temporal motion information to a
great extent through the flexible choice of reference frames and prediction
modes. The proposed filter has been integrated into the H.264/AVC encoder
using the extended profile with hierarchical B-frames and was tested on a
wide range of sequences. The filter produces bit rate reductions of up to
-4\% with an average of -1.6\% over all tested sequences while also
improving the subjective quality of the decoded video.
Key wordscompression, video compression, temporal in-loop filtering, pixel trajectories, B-frames
NoteIEEE catalog number: CFP11CIP-USB
ISBN: 978-1-4577-1302-6