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Improved video coding using long-term global motion compensation

 
: Smolic, A.; Vatis, Y.; Schwarz, H.; Kauff, P.; Gölz, U.; Wiegand, T.

:

Panchanathan, S.; Vasudev, B.:
Visual Communications and Image Processing 2004. Vol. 1 : San Jose, 20 January 2004
Bellingham, WA: SPIE, 2004 (Proceedings of SPIE 5308)
S.343-354
Visual Communications and Image Processing Conference (VCIP) <2004, San Jose>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()

Abstract
We present a new approach to video coding that utilizes video analysis based on global motion features. For each encoded frame a global motion parameter set is estimated with respect to several previously transmitted frames. Using this global motion parameter set, a new motion compensation technique inspired by super-resolution mosaicing is applied. Rate-distortion optimization is used to identify macroblocks that are only affected by global motion. For such macroblocks no prediction error is transmitted. They are purely reconstructed using long-term global motion-compensated prediction, Our results indicate significant bit-rate savings compared to a state of the art H.264/AVC video codec at the same visual quality.

: http://publica.fraunhofer.de/dokumente/N-169676.html