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- H.261 abstract "H.261 is an ITU-T video compression standard, first ratified in November 1988. It is the first member of the H.26x family of video coding standards in the domain of the ITU-T Video Coding Experts Group (VCEG), and was the first video codec that was useful in practical terms.H.261 was originally designed for transmission over ISDN lines on which data rates are multiples of 64 kbit/s. The coding algorithm was designed to be able to operate at video bit rates between 40 kbit/s and 2 Mbit/s. The standard supports two video frame sizes: CIF (352x288 luma with 176x144 chroma) and QCIF (176x144 with 88x72 chroma) using a 4:2:0 sampling scheme. It also has a backward-compatible trick for sending still images with 704x576 luma resolution and 352x288 chroma resolution (which was added in a later revision in 1993).".
- H.261 wikiPageExternalLink T-REC-H.261.
- H.261 wikiPageID "314407".
- H.261 wikiPageLength "7143".
- H.261 wikiPageOutDegree "40".
- H.261 wikiPageRevisionID "694568659".
- H.261 wikiPageWikiLink Category:ITU-T_recommendations.
- H.261 wikiPageWikiLink Category:Video_codecs.
- H.261 wikiPageWikiLink Chroma_subsampling.
- H.261 wikiPageWikiLink Chrominance.
- H.261 wikiPageWikiLink Color_space.
- H.261 wikiPageWikiLink Common_Intermediate_Format.
- H.261 wikiPageWikiLink Data_compression.
- H.261 wikiPageWikiLink Deblocking_filter.
- H.261 wikiPageWikiLink Discrete_cosine_transform.
- H.261 wikiPageWikiLink Entropy_encoding.
- H.261 wikiPageWikiLink FFmpeg.
- H.261 wikiPageWikiLink Ffdshow.
- H.261 wikiPageWikiLink GNU_Lesser_General_Public_License.
- H.261 wikiPageWikiLink H.120.
- H.261 wikiPageWikiLink MPEG-2_Part_2.
- H.261 wikiPageWikiLink H.263.
- H.261 wikiPageWikiLink MPEG-4_AVC.
- H.261 wikiPageWikiLink High_Efficiency_Video_Coding.
- H.261 wikiPageWikiLink ITU-T.
- H.261 wikiPageWikiLink Integrated_Services_Digital_Network.
- H.261 wikiPageWikiLink International_Telecommunication_Union.
- H.261 wikiPageWikiLink Interoperability.
- H.261 wikiPageWikiLink Libavcodec.
- H.261 wikiPageWikiLink Luma_(video).
- H.261 wikiPageWikiLink MPEG-1.
- H.261 wikiPageWikiLink MPEG-4_Part_2.
- H.261 wikiPageWikiLink MPlayer.
- H.261 wikiPageWikiLink Macroblock.
- H.261 wikiPageWikiLink Motion_vector.
- H.261 wikiPageWikiLink N._Ahmed.
- H.261 wikiPageWikiLink Nippon_Telegraph_and_Telephone.
- H.261 wikiPageWikiLink VLC_media_player.
- H.261 wikiPageWikiLink Video_Coding_Experts_Group.
- H.261 wikiPageWikiLink Video_coding_format.
- H.261 wikiPageWikiLink YCbCr.
- H.261 wikiPageWikiLinkText "H.261".
- H.261 wikiPageUsesTemplate Template:Compression_formats.
- H.261 wikiPageUsesTemplate Template:Reflist.
- H.261 subject Category:ITU-T_recommendations.
- H.261 subject Category:Video_codecs.
- H.261 hypernym Video.
- H.261 type Album.
- H.261 type Diacritic.
- H.261 type Redirect.
- H.261 comment "H.261 is an ITU-T video compression standard, first ratified in November 1988. It is the first member of the H.26x family of video coding standards in the domain of the ITU-T Video Coding Experts Group (VCEG), and was the first video codec that was useful in practical terms.H.261 was originally designed for transmission over ISDN lines on which data rates are multiples of 64 kbit/s. The coding algorithm was designed to be able to operate at video bit rates between 40 kbit/s and 2 Mbit/s.".
- H.261 label "H.261".
- H.261 sameAs Q1148249.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs Η.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs m.01tn0f.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 sameAs Q1148249.
- H.261 sameAs H.261.
- H.261 sameAs H.261.
- H.261 wasDerivedFrom H.261?oldid=694568659.
- H.261 isPrimaryTopicOf H.261.