Video compression technique, used to efficiently predict and generate video frames
Not to be confused with motion compensator.
Visualization of MPEG block motion compensation. Blocks that moved from one frame to the next are shown as white arrows, making the motions of the different platforms and the character clearly visible.
Motion compensation in computing is an algorithmic technique used to predict a frame in a video given the previous and/or future frames by accounting for motion of the camera and/or objects in the video. It is employed in the encoding of video data for video compression, for example in the generation of MPEG-2 files. Motion compensation describes a picture in terms of the transformation of a reference picture to the current picture. The reference picture may be previous in time or even from the future. When images can be accurately synthesized from previously transmitted/stored images, the compression efficiency can be improved.
Motion compensation is one of the two key video compression techniques used in video coding standards, along with the discrete cosine transform (DCT). Most video coding standards, such as the H.26x and MPEG formats, typically use motion-compensated DCT hybrid coding,[1][2] known as block motion compensation (BMC) or motion-compensated DCT (MC DCT).
^Chen, Jie; Koc, Ut-Va; Liu, KJ Ray (2001). Design of Digital Video Coding Systems: A Complete Compressed Domain Approach. CRC Press. p. 71. ISBN 9780203904183.
^Cite error: The named reference Li was invoked but never defined (see the help page).
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Motioncompensation in computing is an algorithmic technique used to predict a frame in a video given the previous and/or future frames by accounting...
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Block boundary discontinuities can occur at edges of motioncompensation prediction blocks. In motion compensated video compression, the current picture...
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half-pel luma sample predictions, for sharper subpixel motion-compensation. Quarter-pixel motion is derived by linear interpolation of the halfpixel values...
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are not produced in real time. [citation needed] Inbetweening MotioncompensationMotion interpolation (computer graphics) Flicker-free Television standards...
S2CID 22259256. Guckenberger M, Richter A, Boda-Heggemann J, Lohr F (2012). "Motioncompensation in radiotherapy". Critical Reviews in Biomedical Engineering. 40...
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