Motion Compensation in MPEG
In MPEG, images are predicted from previous frames (P frames) or bidirectionally from previous and future frames (B frames). B frames are more complex because the image sequence must be transmitted/stored out of order so that the future frame is available to generate the B frames.
After predicting frames using motion compensation, the coder finds the error (residual) which is then compressed and transmitted.
Read more about this topic: Motion Compensation
Famous quotes containing the words motion and/or compensation:
“I have seen in this revolution a circular motion of the sovereign power through two usurpers, father and son, to the late King to this his son. For ... it moved from King Charles I to the Long Parliament; from thence to the Rump; from the Rump to Oliver Cromwell; and then back again from Richard Cromwell to the Rump; then to the Long Parliament; and thence to King Charles, where long may it remain.”
—Thomas Hobbes (1579–1688)
“In compensation for considerable disgust, despondency, and boredom—such as living in solitude without friends, books, duties, or passions necessarily entails—we are given those quarter-hours of deepest communion with ourselves and nature. Those who completely barricade themselves from boredom, barricade themselves from themselves as well: they will never get to drink the most refreshingly potent draught from the their own innermost fountain.”
—Friedrich Nietzsche (1844–1900)