Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Golomb coding
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
== Applications == [[File:Golomb coded Rice Algorithm experiment Compression Ratios.png|thumb|upright 1.5|Golomb-coded Rice algorithm experiment compression ratios]] Numerous signal codecs use a Rice code for [[prediction]] residues. In predictive algorithms, such residues tend to fall into a two-sided [[geometric distribution]], with small residues being more frequent than large residues, and the Rice code closely approximates the Huffman code for such a distribution without the overhead of having to transmit the Huffman table. One signal that does not match a geometric distribution is a [[sine wave]], because the differential residues create a sinusoidal signal whose values are not creating a geometric distribution (the highest and lowest residue values have similar high frequency of occurrences, only the median positive and negative residues occur less often). Several lossless [[audio data compression|audio codecs]], such as [[Shorten (file format)|Shorten]],<ref>{{Cite web |url=http://www.etree.org/shnutils/shorten/support/doc/shorten.txt |title=man shorten |access-date=2008-12-07 |archive-url=https://web.archive.org/web/20140130053525/http://www.etree.org/shnutils/shorten/support/doc/shorten.txt |archive-date=2014-01-30 |url-status=dead }}</ref> [[FLAC]],<ref>{{Cite web|url=https://xiph.org/flac/documentation_format_overview.html|title=FLAC - Format overview|website=xiph.org}}</ref> [[Apple Lossless]], and [[MPEG-4 ALS]], use a Rice code after the [[Linear predictive coding|linear prediction step]] (called "adaptive FIR filter" in Apple Lossless). Rice coding is also used in the [[FELICS]] lossless image codec. The Golomb–Rice coder is used in the entropy coding stage of [[Rice algorithm]] based ''lossless image codecs''. One such experiment yields the compression ratio graph shown. The [[Lossless JPEG#JPEG-LS|JPEG-LS]] scheme uses Rice–Golomb to encode the prediction residuals. The adaptive version of Golomb–Rice coding mentioned above, the RLGR encoder [https://www.microsoft.com/en-us/research/publication/adaptive-run-length-golomb-rice-encoding-of-quantized-generalized-gaussian-sources-with-unknown-statistics/],is used for encoding screen content in virtual machines in the [https://msdn.microsoft.com/en-us/library/ff635165.aspx RemoteFX] component of the Microsoft Remote Desktop Protocol.
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)