Motion Estimation Algorithms Using the Deformation of Planar Hierarchical Mesh Grid for Videoconferencing Applications at Low Bit-rate Transmission

A parallel algorithm for motion estimation in video coding using the bilinear transformation

“…The need for accurate estimation of the motion in a video is more pressing in compression techniques aiming at low or very low bit rates (Mokraoui et al 2012 ; Ghanbari et al 1995 ; Sayed and Badawy 2006 ). Inaccurate motion estimation increases the prediction error and thus more bits should be allocated for storing or transmitting this information.…”

“…In order to achieve more accurate motion estimation without overly increasing computational demands, a number of techniques have been proposed, which generalize the block-based algorithms (Mokraoui et al 2012 ; Tekalp 1995 ; Aizawa and Huang 1995 ; Altunbasak and Tekalp 1997 ; Huang et al 2013 ; Kordasiewicz et al 2007 ; Sharaf and Marvasti 1999 ; Nosratinia 2001 ; Sayed and Badawy 2004 ; Nakaya and Harashima 1994 ; Muhit et al 2012 ). These techniques assume a regular tiling over the image where each tile can be triangular or rectangular.…”