@INPROCEEDINGS{1303Esche2011,
	AUTHOR = {Marko Esche and Andreas Krutz and Alexander Glantz and Thomas Sikora},
	TITLE = {Temporal trajectory filtering for bi-directional predicted frames},
	BOOKTITLE = {Proceedings of the 18th IEEE International Conference on Image Processing (IEEE ICIP2011)},
	YEAR = {2011},
	MONTH = sep,
	PUBLISHER = {IEEE},
	PAGES = {1669--1672},
	ORGANIZATION = {IEEE},
	ADDRESS = {Brussels, Belgium},
	NOTE = {IEEE catalog number: CFP11CIP-USB
ISBN:	 978-1-4577-1302-6},
	PDF = {http://elvera.nue.tu-berlin.de/files/1303Esche2011.pdf},
	ABSTRACT = {In 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.}
}