Criticism
GMC failed to meet expectations of dramatic improvements in motion compensation, and as a result it was omitted from the H.264/MPEG-4 AVC specification - designed as a successor to MPEG-4 ASP. Most of GMC's benefits could be obtained via better motion vector prediction. GMC also represents a large computational cost during encoding which yields relatively minor quality improvements.
Due to the extra decoding CPU cost of global motion compensation, most hardware players do not support global motion compensation.
Read more about this topic: Global Motion Compensation
Famous quotes containing the word criticism:
“It is ... pathetic to observe the complete lack of imagination on the part of certain employers and men and women of the upper-income levels, equally devoid of experience, equally glib with their criticism ... directed against workers, labor leaders, and other villains and personal devils who are the objects of their dart-throwing. Who doesn’t know the wealthy woman who fulminates against the “idle” workers who just won’t get out and hunt jobs?”
—Mary Barnett Gilson (1877–?)
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—Rebecca West (1892–1983)
“Like speaks to like only; labor to labor, philosophy to philosophy, criticism to criticism, poetry to poetry. Literature speaks how much still to the past, how little to the future, how much to the East, how little to the West.”
—Henry David Thoreau (1817–1862)