MPEG Video Compression Basics



Video signals differ from image signals in several important characteristics. Of course the most important difference is that video signals have a camera frame rate of anywhere from 15 to 60 frames/s, which provides the illusion of smooth motion in the displayed signal.1 Another difference between images and video is the ability to exploit temporal redundancy as well as spatial redundancy in designing compression methods for video. For example, we can take advantage of the fact that objects in video sequences tend to move in predictable patterns, and can therefore be motion-compensated from frame-to-frame if we can detect the object and its motion trajectory over time.


Discrete Cosine Transform Motion Vector Video Code Motion Compensation Discrete Cosine Transform Coefficient 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Apple ComputerCupertinoUSA

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