Thomson Licensing

Dominique Touchais

Olivier Le Meur

Jean-Yves Babonneau

Juan Moronta

Florent Maheo

The present invention relates to a device and a process for motion-compensated recursive filtering and a corresponding coding system. The device comprises in particular a blockwise motion estimation module [()], means [()] for determining a recursivity noise level (&#x3c3;), a module () for calculating a prediction error (&#x3b5;), a module [()] for calculating a recursivity coefficient (&#x3b1;) as a function of the recursivity noise level and of the prediction error, means [()] for calculating a motion-compensated image and means of filtering [()] producing a weighting, by the recursivity coefficient, of the current input image and of a filtered and motion-compensated image stored previously. The device also comprises means [()] for determining an immobility noise level (&#x3c3;), and an assembly [()] for processing zones constituting partitions of the blocks employed for the motion estimation, zeroing the motion vectors (d) associated with the zones in which the FDs are below a threshold dependent on the immobility noise level.

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La Bouexière, France

Dominique Touchais