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ITU-T H.263 (02/1998)

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Video coding for low bit rate communication
This Recommendation specifies a coded representation that can be used for compressing the moving picture component of audio-visual services at low bit rates. The basic configuration of the video source coding algorithm is based on Recommendation H.261 and is a hybrid of inter-picture prediction to utilize temporal redundancy and transform coding of the remaining signal to reduce spatial redundancy. The source coder can operate on five standardized video source formats: sub-QCIF, QCIF, CIF, 4CIF and 16CIF, and can also operate using a broad range of custom video formats.The decoder has motion compensation capability, allowing optional incorporation of this technique in the coder. Half pixel precision is used for the motion compensation, as opposed to Recommendation H.261 where full pixel precision and a loopfilter are used. Variable length coding is used for the symbols to be transmitted.In addition to the basic video source coding algorithm, sixteen negotiable coding options are included for improved compression performance and the support of additional capabilities. Additional supplemental information may also be included in the bitstream for enhanced display capability and for external usage.
Citation: http://handle.itu.int/11.1002/1000/4242
Approval date: 1998-02-06
Approval process:TAP
Status: Superseded
Maintenance responsibility: ITU-T Study Group 16
Further details: Patent statement(s)
Ed. ITU-T Recommendation Status Summary Table of Contents Download
3 H.263 (01/2005) In force
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2.7 H.263 Annex X (03/2004) Superseded
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2.6 H.263 App. III (06/2001) In force
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here
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2.5 H.263 App. II (06/2001) Superseded - - here
2.4 H.263 Annex X (04/2001) Superseded
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here
here
2.3 H.263 Annex W (11/2000) Superseded
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here
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2.2 H.263 Annex V (11/2000) Superseded
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here
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2.1 H.263 Annex U (11/2000) Superseded
here
here
here
2 H.263 (02/1998) Superseded
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here
here
1.1 H.263 App. I (03/1997) Superseded -
here
here
1 H.263 (03/1996) Superseded -
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here