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1000 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 13, NO. 10, OCTOBER 2003 Hierarchical Motion Estimation With Content-Based Meshes
 

Summary: 1000 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 13, NO. 10, OCTOBER 2003
Hierarchical Motion Estimation With Content-Based Meshes
Ghassan Al-Regib, Member, IEEE, Yucel Altunbasak, Senior Member, IEEE, and Russell M. Mersereau, Fellow, IEEE
Abstract--Two-dimensional mesh-based models provide a good
alternative to motion estimation and compensation. The estima-
tion of the best node-point motion vectors is a challenging task. To
this effect, Nakaya and Harashima proposed a hexagonal matching
procedure. Toklu et al. improved the hexagonal search algorithm
in terms of both motion-estimation accuracy and computational
complexity by employing a hierarchy of regular meshes. Recog-
nizing the limitations of regular meshes, Van Beek et al. extended
Toklu et al.'s work by utilizing content-based meshes. Here, we
provide an alternative hierarchical motion-estimation method with
content-based meshes where hierarchical representations are em-
ployed for both the images and the irregular meshes in order to
provide further improvements in computational complexity as well
as motion accuracy. The comparison results are provided with real
video sequences.
Index Terms--Hierarchical motion estimation, model-based
coding, two-dimensional mesh, two-dimensional mesh-based

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering