Digital Video Representation

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• Digitization
  
  Original video signal is analogue and should be converted to digital form for computer processing.
  Hardware: a video grabber
  
  
  
  

• Compression
  
  Why compression is needed: Huge memory required to store video frames, hence huge bandwidth is needed.
  
  MPeg Video Compression Standard
  Structural Hierarchy of MPEG
  
  Intraframe Encoding
  P and B Frame Encoding
  
  

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