Motion compensation | Wikipedia audio article
Channel: wikipedia tts
Date: 13/01/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Motion_compensation


00:00:48 1 Functionality
00:01:40 2 Illustrated example
00:02:51 3 MPEG
00:03:30 4 Global motion compensation
00:05:37 5 Block motion compensation
00:09:54 6 Variable block-size motion compensation
00:11:01 7 Overlapped block motion compensation
00:12:44 8 Quarter Pixel (QPel) and Half Pixel motion compensation
00:13:29 9 3D image coding techniques
00:14:44 10 See also
00:15:12 11 Applications



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SUMMARY
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Motion compensation 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.