lotus

previous page: 62  What is MPEG-2?
  
page up: MPEG FAQ
  
next page: 64  MPEG Myths

63 What is MPEG video syntax ?




Description

This article is from the MPEG FAQ, by Frank Gadegast phade@cs.tu-berlin.de with numerous contributions by others.

63 What is MPEG video syntax ?

MPEG video syntax provides an efficient way to represent image
sequences in the form of more compact coded data. The language of the
coded bits is the syntax. For example, a few tokens can represent an
entire block of 64 samples. MPEG also describes a decoding
(reconstruction) process where the coded bits are mapped from the
compact representation into the original, raw format of the image
sequence. For example, a flag in the coded bitstream signals whether
the following bits are to be decoded with a DCT algorithm or with a
prediction algorithm. The algorithms comprising the decoding process
are regulated by the semantics defined by MPEG. This syntax can be
applied to exploit common video characteristics such as spatial
redundancy, temporal redundancy, uniform motion, spatial masking, etc.

 

Continue to:













TOP
previous page: 62  What is MPEG-2?
  
page up: MPEG FAQ
  
next page: 64  MPEG Myths