Exponential-Golomb coding: Difference between revisions

Revision as of 16:50, 21 March 2012

Revision as of 14:37, 19 April 2012

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...<ref name="richardson"/>

Exp-Golomb coding for ''k''&nbsp;=&nbsp;0 is used in the [[H.264/MPEG-4 AVC]] video compression standard, in which there is also a variation for the coding of signed numbers by assigning the value 0 to the binary codeword '0' and assigning subsequent codewords to input values of increasing magnitude (and alternating sign, if the field can contain a negative number).<ref name="richardson">{{cite book|last=Richardson|first=Iain|title=The H.264 Advanced Video Compression Standard|year=2010|publisher=Wiley|isbn=978-0470516928|pages=208,221|url=http://books.google.com/books?id=LJoDiPnBzQ8C&lpg=PA208&dq=Exponential-Golomb%20coding&pg=PA221#v=onepage&q=Exponential-Golomb%20coding&f=false}}</ref>

0 => 1 => 1

1 => 10 => 010

-1 => 11 => 011

2 => 100 => 00100

-2 => 101 => 00101

3 => 110 => 00110

-3 => 111 => 00111

4 => 1000 => 0001000

-4 => 1001 => 0001001

...<ref name="richardson">{{cite book|last=Richardson|first=Iain|title=The H.264 Advanced Video Compression Standard|year=2010|publisher=Wiley|isbn=978-0470516928|pages=208,221|url=http://books.google.com/books?id=LJoDiPnBzQ8C&lpg=PA208&dq=Exponential-Golomb%20coding&pg=PA221#v=onepage&q=Exponential-Golomb%20coding&f=false}}</ref>

Exp-Golomb coding is also used in the [[Dirac (video compression format)|Dirac video codec]].<ref>{{cite web|title=Dirac Specification|url=http://diracvideo.org/download/specification/dirac-spec-latest.pdf|publisher=BBC|accessdate=9 March 2011}}</ref>